cpython-lru_cache-weakref: Modules/getpath.c annotate

annotate Modules/getpath.c @ 16798:258dcafe2d0b legacy-trunk

Gustavo Niemeyer <niemeyer@conectiva.com>: Fixed recno support (keys are integers rather than strings). Work around DB bug that cause stdin to be closed by rnopen() when the DB file needed to exist but did not (no longer segfaults). This closes SF tracker patch #403445. Also wrapped some long lines and added whitespace around operators -- FLD.

author	Fred Drake <fdrake@acm.org>
date	Tue, 27 Feb 2001 18:56:46 +0000
parents	a0e46c3be63e
children	a8b1acc7a21f

rev	line source
3621 f158edccc72c grand renaming; added copyright to some files Guido van Rossum <guido@python.org> parents: 3416 diff changeset	1
f158edccc72c grand renaming; added copyright to some files Guido van Rossum <guido@python.org> parents: 3416 diff changeset	2 /* Return the initial module search path. */
f158edccc72c grand renaming; added copyright to some files Guido van Rossum <guido@python.org> parents: 3416 diff changeset	3
2896 f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4 #include "Python.h"
f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	5 #include "osdefs.h"
f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	6
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	7 #include <sys/types.h>
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	8 #include <sys/stat.h>
5698 ba860dc0a585 Use string.h, not strings.h Guido van Rossum <guido@python.org> parents: 5568 diff changeset	9 #include <string.h>
2896 f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	10
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	11 #if HAVE_UNISTD_H
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	12 #include <unistd.h>
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	13 #endif /* HAVE_UNISTD_H */
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	14
9970 8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	15 #ifdef WITH_NEXT_FRAMEWORK
8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	16 #include <mach-o/dyld.h>
8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	17 #endif
8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	18
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	19 /* Search in some common locations for the associated Python libraries.
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	20 *
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	21 * Two directories must be found, the platform independent directory
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	22 * (prefix), containing the common .py and .pyc files, and the platform
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	23 * dependent directory (exec_prefix), containing the shared library
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	24 * modules. Note that prefix and exec_prefix can be the same directory,
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	25 * but for some installations, they are different.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	26 *
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	27 * Py_GetPath() carries out separate searches for prefix and exec_prefix.
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	28 * Each search tries a number of different locations until a ``landmark''
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	29 * file or directory is found. If no prefix or exec_prefix is found, a
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	30 * warning message is issued and the preprocessor defined PREFIX and
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	31 * EXEC_PREFIX are used (even though they will not work); python carries on
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	32 * as best as is possible, but most imports will fail.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	33 *
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	34 * Before any searches are done, the location of the executable is
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	35 * determined. If argv[0] has one or more slashs in it, it is used
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	36 * unchanged. Otherwise, it must have been invoked from the shell's path,
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	37 * so we search $PATH for the named executable and use that. If the
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	38 * executable was not found on $PATH (or there was no $PATH environment
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	39 * variable), the original argv[0] string is used.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	40 *
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	41 * Next, the executable location is examined to see if it is a symbolic
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	42 * link. If so, the link is chased (correctly interpreting a relative
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	43 * pathname if one is found) and the directory of the link target is used.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	44 *
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	45 * Finally, argv0_path is set to the directory containing the executable
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	46 * (i.e. the last component is stripped).
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	47 *
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	48 * With argv0_path in hand, we perform a number of steps. The same steps
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	49 * are performed for prefix and for exec_prefix, but with a different
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	50 * landmark.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	51 *
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	52 * Step 1. Are we running python out of the build directory? This is
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	53 * checked by looking for a different kind of landmark relative to
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	54 * argv0_path. For prefix, the landmark's path is derived from the VPATH
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	55 * preprocessor variable (taking into account that its value is almost, but
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	56 * not quite, what we need). For exec_prefix, the landmark is
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	57 * Modules/Setup. If the landmark is found, we're done.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	58 *
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	59 * For the remaining steps, the prefix landmark will always be
12775 8e2b35d386aa Patch from M.-A. Lemburg: Jeremy Hylton <jeremy@alum.mit.edu> parents: 12576 diff changeset	60 * lib/python$VERSION/os.py and the exec_prefix will always be
6498 4981fd2b3211 Change sharedmodules to lib-dynload. Guido van Rossum <guido@python.org> parents: 6121 diff changeset	61 * lib/python$VERSION/lib-dynload, where $VERSION is Python's version
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	62 * number as supplied by the Makefile. Note that this means that no more
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	63 * build directory checking is performed; if the first step did not find
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	64 * the landmarks, the assumption is that python is running from an
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	65 * installed setup.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	66 *
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	67 * Step 2. See if the $PYTHONHOME environment variable points to the
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	68 * installed location of the Python libraries. If $PYTHONHOME is set, then
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	69 * it points to prefix and exec_prefix. $PYTHONHOME can be a single
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	70 * directory, which is used for both, or the prefix and exec_prefix
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	71 * directories separated by a colon.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	72 *
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	73 * Step 3. Try to find prefix and exec_prefix relative to argv0_path,
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	74 * backtracking up the path until it is exhausted. This is the most common
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	75 * step to succeed. Note that if prefix and exec_prefix are different,
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	76 * exec_prefix is more likely to be found; however if exec_prefix is a
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	77 * subdirectory of prefix, both will be found.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	78 *
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	79 * Step 4. Search the directories pointed to by the preprocessor variables
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	80 * PREFIX and EXEC_PREFIX. These are supplied by the Makefile but can be
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	81 * passed in as options to the configure script.
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	82 *
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	83 * That's it!
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	84 *
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	85 * Well, almost. Once we have determined prefix and exec_prefix, the
13620 5b727ab37092 Spelling fixes supplied by Rob W. W. Hooft. All these are fixes in either Thomas Wouters <thomas@python.org> parents: 13428 diff changeset	86 * preprocessor variable PYTHONPATH is used to construct a path. Each
5316 c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	87 * relative path on PYTHONPATH is prefixed with prefix. Then the directory
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	88 * containing the shared library modules is appended. The environment
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	89 * variable $PYTHONPATH is inserted in front of it all. Finally, the
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	90 * prefix and exec_prefix globals are tweaked so they reflect the values
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	91 * expected by other code, by stripping the "lib/python$VERSION/..." stuff
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	92 * off. If either points to the build directory, the globals are reset to
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	93 * the corresponding preprocessor variables (so sys.prefix will reflect the
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	94 * installation location, even though sys.path points into the build
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	95 * directory). This seems to make more sense given that currently the only
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	96 * known use of sys.prefix and sys.exec_prefix is for the ILU installation
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	97 * process to find the installed Python tree.
c8e24c4b8bfb Removed two unused static function: string_addsep() and Barry Warsaw <barry@python.org> parents: 5300 diff changeset	98 */
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	99
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	100 #ifndef VERSION
16147 fbf8abec93d1 Clean up some comments and the default VERSION. Guido van Rossum <guido@python.org> parents: 14907 diff changeset	101 #define VERSION "2.1"
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	102 #endif
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	103
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	104 #ifndef VPATH
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	105 #define VPATH "."
2896 f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	106 #endif
f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	107
3674 3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	108 #ifndef PREFIX
3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	109 #define PREFIX "/usr/local"
3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	110 #endif
3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	111
3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	112 #ifndef EXEC_PREFIX
3878 4286910080a9 Don't have "." in the default path. Guido van Rossum <guido@python.org> parents: 3674 diff changeset	113 #define EXEC_PREFIX PREFIX
3674 3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	114 #endif
3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	115
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	116 #ifndef PYTHONPATH
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	117 #define PYTHONPATH PREFIX "/lib/python" VERSION ":" \
6498 4981fd2b3211 Change sharedmodules to lib-dynload. Guido van Rossum <guido@python.org> parents: 6121 diff changeset	118 EXEC_PREFIX "/lib/python" VERSION "/lib-dynload"
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	119 #endif
2896 f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	120
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	121 #ifndef LANDMARK
12775 8e2b35d386aa Patch from M.-A. Lemburg: Jeremy Hylton <jeremy@alum.mit.edu> parents: 12576 diff changeset	122 #define LANDMARK "os.py"
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	123 #endif
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	124
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	125 static char prefix[MAXPATHLEN+1];
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	126 static char exec_prefix[MAXPATHLEN+1];
5568 139ab21d2629 Make delimiter and separator static for K&R C. Guido van Rossum <guido@python.org> parents: 5500 diff changeset	127 static char progpath[MAXPATHLEN+1];
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	128 static char *module_search_path = NULL;
14907 d01394b0aa69 Minor ANSIfication: lib_python no longer needs to be initialized Fred Drake <fdrake@acm.org> parents: 14898 diff changeset	129 static char lib_python[] = "lib/python" VERSION;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	130
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	131 static void
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	132 reduce(char *dir)
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	133 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	134 size_t i = strlen(dir);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	135 while (i > 0 && dir[i] != SEP)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	136 --i;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	137 dir[i] = '\0';
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	138 }
7117 419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	139
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	140
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	141 #ifndef S_ISREG
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	142 #define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	143 #endif
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	144
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	145 #ifndef S_ISDIR
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	146 #define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR)
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	147 #endif
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	148
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	149 static int
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	150 isfile(char filename) / Is file, not directory */
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	151 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	152 struct stat buf;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	153 if (stat(filename, &buf) != 0)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	154 return 0;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	155 if (!S_ISREG(buf.st_mode))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	156 return 0;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	157 return 1;
7117 419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	158 }
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	159
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	160
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	161 static int
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	162 ismodule(char filename) / Is module -- check for .pyc/.pyo too */
7117 419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	163 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	164 if (isfile(filename))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	165 return 1;
7117 419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	166
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	167 /* Check for the compiled version of prefix. */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	168 if (strlen(filename) < MAXPATHLEN) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	169 strcat(filename, Py_OptimizeFlag ? "o" : "c");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	170 if (isfile(filename))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	171 return 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	172 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	173 return 0;
7117 419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	174 }
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	175
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	176
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	177 static int
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	178 isxfile(char filename) / Is executable file */
7117 419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	179 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	180 struct stat buf;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	181 if (stat(filename, &buf) != 0)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	182 return 0;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	183 if (!S_ISREG(buf.st_mode))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	184 return 0;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	185 if ((buf.st_mode & 0111) == 0)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	186 return 0;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	187 return 1;
7117 419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	188 }
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	189
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	190
419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	191 static int
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	192 isdir(char filename) / Is directory */
7117 419dca2b3a61 Instead of a single exists(), differentiate between files, modules, Guido van Rossum <guido@python.org> parents: 6823 diff changeset	193 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	194 struct stat buf;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	195 if (stat(filename, &buf) != 0)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	196 return 0;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	197 if (!S_ISDIR(buf.st_mode))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	198 return 0;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	199 return 1;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	200 }
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	201
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	202
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	203 /* joinpath requires that any buffer argument passed to it has at
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	204 least MAXPATHLEN + 1 bytes allocated. If this requirement is met,
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	205 it guarantees that it will never overflow the buffer. If stuff
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	206 is too long, buffer will contain a truncated copy of stuff.
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	207 */
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	208 static void
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	209 joinpath(char buffer, char stuff)
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	210 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	211 size_t n, k;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	212 if (stuff[0] == SEP)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	213 n = 0;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	214 else {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	215 n = strlen(buffer);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	216 if (n > 0 && buffer[n-1] != SEP && n < MAXPATHLEN)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	217 buffer[n++] = SEP;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	218 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	219 k = strlen(stuff);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	220 if (n + k > MAXPATHLEN)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	221 k = MAXPATHLEN - n;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	222 strncpy(buffer+n, stuff, k);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	223 buffer[n+k] = '\0';
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	224 }
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	225
16147 fbf8abec93d1 Clean up some comments and the default VERSION. Guido van Rossum <guido@python.org> parents: 14907 diff changeset	226 /* init_path_from_argv0 requires that path be allocated at least
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	227 MAXPATHLEN + 1 bytes and that argv0_path be no more than MAXPATHLEN
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	228 bytes.
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	229 */
14845 88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	230 static void
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	231 init_path_from_argv0(char path, char argv0_path)
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	232 {
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	233 if (argv0_path[0] == '/')
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	234 strcpy(path, argv0_path);
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	235 else if (argv0_path[0] == '.') {
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	236 getcwd(path, MAXPATHLEN);
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	237 if (argv0_path[1] == '/')
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	238 joinpath(path, argv0_path + 2);
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	239 else
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	240 joinpath(path, argv0_path);
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	241 }
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	242 else {
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	243 getcwd(path, MAXPATHLEN);
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	244 joinpath(path, argv0_path);
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	245 }
88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	246 }
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	247
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	248 /* search_for_prefix requires that argv0_path be no more than MAXPATHLEN
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	249 bytes long.
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	250 */
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	251 static int
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	252 search_for_prefix(char argv0_path, char home)
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	253 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	254 size_t n;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	255 char *vpath;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	256
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	257 /* If PYTHONHOME is set, we believe it unconditionally */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	258 if (home) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	259 char *delim;
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	260 strncpy(prefix, home, MAXPATHLEN);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	261 delim = strchr(prefix, DELIM);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	262 if (delim)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	263 *delim = '\0';
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	264 joinpath(prefix, lib_python);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	265 joinpath(prefix, LANDMARK);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	266 return 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	267 }
12775 8e2b35d386aa Patch from M.-A. Lemburg: Jeremy Hylton <jeremy@alum.mit.edu> parents: 12576 diff changeset	268
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	269 /* Check to see if argv[0] is in the build directory */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	270 strcpy(prefix, argv0_path);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	271 joinpath(prefix, "Modules/Setup");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	272 if (isfile(prefix)) {
16222 a0e46c3be63e Build now happens in toplevel directory, not Modules. Don't monkey with Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 16147 diff changeset	273 /* Check VPATH to see if argv0_path is in the build directory. */
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	274 vpath = VPATH;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	275 strcpy(prefix, argv0_path);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	276 joinpath(prefix, vpath);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	277 joinpath(prefix, "Lib");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	278 joinpath(prefix, LANDMARK);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	279 if (ismodule(prefix))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	280 return -1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	281 }
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	282
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	283 /* Search from argv0_path, until root is found */
14845 88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	284 init_path_from_argv0(prefix, argv0_path);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	285 do {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	286 n = strlen(prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	287 joinpath(prefix, lib_python);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	288 joinpath(prefix, LANDMARK);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	289 if (ismodule(prefix))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	290 return 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	291 prefix[n] = '\0';
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	292 reduce(prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	293 } while (prefix[0]);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	294
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	295 /* Look at configure's PREFIX */
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	296 strncpy(prefix, PREFIX, MAXPATHLEN);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	297 joinpath(prefix, lib_python);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	298 joinpath(prefix, LANDMARK);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	299 if (ismodule(prefix))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	300 return 1;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	301
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	302 /* Fail */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	303 return 0;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	304 }
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	305
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	306
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	307 /* search_for_exec_prefix requires that argv0_path be no more than
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	308 MAXPATHLEN bytes long.
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	309 */
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	310 static int
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	311 search_for_exec_prefix(char argv0_path, char home)
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	312 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	313 size_t n;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	314
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	315 /* If PYTHONHOME is set, we believe it unconditionally */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	316 if (home) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	317 char *delim;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	318 delim = strchr(home, DELIM);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	319 if (delim)
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	320 strncpy(exec_prefix, delim+1, MAXPATHLEN);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	321 else
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	322 strncpy(exec_prefix, home, MAXPATHLEN);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	323 joinpath(exec_prefix, lib_python);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	324 joinpath(exec_prefix, "lib-dynload");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	325 return 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	326 }
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	327
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	328 /* Check to see if argv[0] is in the build directory */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	329 strcpy(exec_prefix, argv0_path);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	330 joinpath(exec_prefix, "Modules/Setup");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	331 if (isfile(exec_prefix)) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	332 reduce(exec_prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	333 return -1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	334 }
12775 8e2b35d386aa Patch from M.-A. Lemburg: Jeremy Hylton <jeremy@alum.mit.edu> parents: 12576 diff changeset	335
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	336 /* Search from argv0_path, until root is found */
14845 88d3a8974409 fix bug #114290: when interpreter's argv[0] has a relative path make Jeremy Hylton <jeremy@alum.mit.edu> parents: 14375 diff changeset	337 init_path_from_argv0(exec_prefix, argv0_path);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	338 do {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	339 n = strlen(exec_prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	340 joinpath(exec_prefix, lib_python);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	341 joinpath(exec_prefix, "lib-dynload");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	342 if (isdir(exec_prefix))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	343 return 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	344 exec_prefix[n] = '\0';
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	345 reduce(exec_prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	346 } while (exec_prefix[0]);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	347
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	348 /* Look at configure's EXEC_PREFIX */
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	349 strncpy(exec_prefix, EXEC_PREFIX, MAXPATHLEN);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	350 joinpath(exec_prefix, lib_python);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	351 joinpath(exec_prefix, "lib-dynload");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	352 if (isdir(exec_prefix))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	353 return 1;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	354
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	355 /* Fail */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	356 return 0;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	357 }
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	358
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	359
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	360 static void
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13620 diff changeset	361 calculate_path(void)
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	362 {
13667 a6c7bfdd6777 Even more ANSIfication: fix as many function pointers and declarations as Thomas Wouters <thomas@python.org> parents: 13651 diff changeset	363 extern char *Py_GetProgramName(void);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	364
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	365 static char delimiter[2] = {DELIM, '\0'};
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	366 static char separator[2] = {SEP, '\0'};
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	367 char *pythonpath = PYTHONPATH;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	368 char *rtpypath = getenv("PYTHONPATH");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	369 char *home = Py_GetPythonHome();
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	370 char *path = getenv("PATH");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	371 char *prog = Py_GetProgramName();
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	372 char argv0_path[MAXPATHLEN+1];
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	373 int pfound, efound; /* 1 if found; -1 if found build directory */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	374 char *buf;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	375 size_t bufsz;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	376 size_t prefixsz;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	377 char *defpath = pythonpath;
9970 8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	378 #ifdef WITH_NEXT_FRAMEWORK
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	379 NSModule pythonModule;
9970 8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	380 #endif
8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	381
8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	382 #ifdef WITH_NEXT_FRAMEWORK
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	383 /* XXX Need to check this code for buffer overflows */
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	384 pythonModule = NSModuleForSymbol(NSLookupAndBindSymbol("_Py_Initialize"));
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	385 /* Use dylib functions to find out where the framework was loaded from */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	386 buf = NSLibraryNameForModule(pythonModule);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	387 if (buf != NULL) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	388 /* We're in a framework. */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	389 strcpy(progpath, buf);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	390
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	391 /* Frameworks have support for versioning */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	392 strcpy(lib_python, "lib");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	393 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	394 else {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	395 /* If we're not in a framework, fall back to the old way
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	396 (even though NSNameOfModule() probably does the same thing.) */
9970 8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	397 #endif
8efa37a770c6 Patches by William Lewis for Nextstep descendants. Guido van Rossum <guido@python.org> parents: 8203 diff changeset	398
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	399 /* If there is no slash in the argv0 path, then we have to
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	400 * assume python is on the user's $PATH, since there's no
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	401 * other way to find a directory to start the search from. If
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	402 * $PATH isn't exported, you lose.
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	403 */
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	404 if (strchr(prog, SEP))
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	405 strncpy(progpath, prog, MAXPATHLEN);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	406 else if (path) {
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	407 int bufspace = MAXPATHLEN;
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	408 while (1) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	409 char *delim = strchr(path, DELIM);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	410
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	411 if (delim) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	412 size_t len = delim - path;
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	413 if (len > bufspace)
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	414 len = bufspace;
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	415 strncpy(progpath, path, len);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	416 *(progpath + len) = '\0';
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	417 bufspace -= len;
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	418 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	419 else
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	420 strncpy(progpath, path, bufspace);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	421
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	422 joinpath(progpath, prog);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	423 if (isxfile(progpath))
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	424 break;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	425
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	426 if (!delim) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	427 progpath[0] = '\0';
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	428 break;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	429 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	430 path = delim + 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	431 }
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	432 }
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	433 else
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	434 progpath[0] = '\0';
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	435 #ifdef WITH_NEXT_FRAMEWORK
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	436 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	437 #endif
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	438
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	439 strncpy(argv0_path, progpath, MAXPATHLEN);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	440
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	441 #if HAVE_READLINK
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	442 {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	443 char tmpbuffer[MAXPATHLEN+1];
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	444 int linklen = readlink(progpath, tmpbuffer, MAXPATHLEN);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	445 while (linklen != -1) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	446 /* It's not null terminated! */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	447 tmpbuffer[linklen] = '\0';
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	448 if (tmpbuffer[0] == SEP)
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	449 /* tmpbuffer should never be longer than MAXPATHLEN,
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	450 but extra check does not hurt */
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	451 strncpy(argv0_path, tmpbuffer, MAXPATHLEN);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	452 else {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	453 /* Interpret relative to progpath */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	454 reduce(argv0_path);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	455 joinpath(argv0_path, tmpbuffer);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	456 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	457 linklen = readlink(argv0_path, tmpbuffer, MAXPATHLEN);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	458 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	459 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	460 #endif /* HAVE_READLINK */
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	461
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	462 reduce(argv0_path);
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	463 /* At this point, argv0_path is guaranteed to be less than
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	464 MAXPATHLEN bytes long.
4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	465 */
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	466
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	467 if (!(pfound = search_for_prefix(argv0_path, home))) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	468 if (!Py_FrozenFlag)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	469 fprintf(stderr,
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	470 "Could not find platform independent libraries <prefix>\n");
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	471 strncpy(prefix, PREFIX, MAXPATHLEN);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	472 joinpath(prefix, lib_python);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	473 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	474 else
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	475 reduce(prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	476
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	477 if (!(efound = search_for_exec_prefix(argv0_path, home))) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	478 if (!Py_FrozenFlag)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	479 fprintf(stderr,
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	480 "Could not find platform dependent libraries <exec_prefix>\n");
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	481 strncpy(exec_prefix, EXEC_PREFIX, MAXPATHLEN);
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	482 joinpath(exec_prefix, "lib/lib-dynload");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	483 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	484 /* If we found EXEC_PREFIX do not reduce it! (Yet.) */
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	485
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	486 if ((!pfound \|\| !efound) && !Py_FrozenFlag)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	487 fprintf(stderr,
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	488 "Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]\n");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	489
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	490 /* Calculate size of return buffer.
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	491 */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	492 bufsz = 0;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	493
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	494 if (rtpypath)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	495 bufsz += strlen(rtpypath) + 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	496
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	497 prefixsz = strlen(prefix) + 1;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	498
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	499 while (1) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	500 char *delim = strchr(defpath, DELIM);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	501
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	502 if (defpath[0] != SEP)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	503 /* Paths are relative to prefix */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	504 bufsz += prefixsz;
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	505
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	506 if (delim)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	507 bufsz += delim - defpath + 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	508 else {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	509 bufsz += strlen(defpath) + 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	510 break;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	511 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	512 defpath = delim + 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	513 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	514
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	515 bufsz += strlen(exec_prefix) + 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	516
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	517 /* This is the only malloc call in this file */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	518 buf = PyMem_Malloc(bufsz);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	519
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	520 if (buf == NULL) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	521 /* We can't exit, so print a warning and limp along */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	522 fprintf(stderr, "Not enough memory for dynamic PYTHONPATH.\n");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	523 fprintf(stderr, "Using default static PYTHONPATH.\n");
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	524 module_search_path = PYTHONPATH;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	525 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	526 else {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	527 /* Run-time value of $PYTHONPATH goes first */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	528 if (rtpypath) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	529 strcpy(buf, rtpypath);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	530 strcat(buf, delimiter);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	531 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	532 else
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	533 buf[0] = '\0';
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	534
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	535 /* Next goes merge of compile-time $PYTHONPATH with
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	536 * dynamically located prefix.
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	537 */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	538 defpath = pythonpath;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	539 while (1) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	540 char *delim = strchr(defpath, DELIM);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	541
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	542 if (defpath[0] != SEP) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	543 strcat(buf, prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	544 strcat(buf, separator);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	545 }
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	546
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	547 if (delim) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	548 size_t len = delim - defpath + 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	549 size_t end = strlen(buf) + len;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	550 strncat(buf, defpath, len);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	551 *(buf + end) = '\0';
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	552 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	553 else {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	554 strcat(buf, defpath);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	555 break;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	556 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	557 defpath = delim + 1;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	558 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	559 strcat(buf, delimiter);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	560
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	561 /* Finally, on goes the directory for dynamic-load modules */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	562 strcat(buf, exec_prefix);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	563
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	564 /* And publish the results */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	565 module_search_path = buf;
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	566 }
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	567
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	568 /* Reduce prefix and exec_prefix to their essence,
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	569 * e.g. /usr/local/lib/python1.5 is reduced to /usr/local.
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	570 * If we're loading relative to the build directory,
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	571 * return the compiled-in defaults instead.
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	572 */
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	573 if (pfound > 0) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	574 reduce(prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	575 reduce(prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	576 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	577 else
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	578 strncpy(prefix, PREFIX, MAXPATHLEN);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	579
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	580 if (efound > 0) {
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	581 reduce(exec_prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	582 reduce(exec_prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	583 reduce(exec_prefix);
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	584 }
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	585 else
14898 4bea4f59c4e4 Fix buffer overflow vulnerabilities in calculate_path(). Code used Jeremy Hylton <jeremy@alum.mit.edu> parents: 14845 diff changeset	586 strncpy(exec_prefix, EXEC_PREFIX, MAXPATHLEN);
5300 e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	587 }
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	588
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	589
e77942562dd3 Completely revamped the way the default path is constructed. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	590 /* External interface */
2896 f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	591
f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	592 char *
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13620 diff changeset	593 Py_GetPath(void)
2896 f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	594 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	595 if (!module_search_path)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	596 calculate_path();
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	597 return module_search_path;
2896 f0d9f800a4aa Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	598 }
3674 3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	599
3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	600 char *
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13620 diff changeset	601 Py_GetPrefix(void)
3674 3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	602 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	603 if (!module_search_path)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	604 calculate_path();
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	605 return prefix;
3674 3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	606 }
3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	607
3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	608 char *
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13620 diff changeset	609 Py_GetExecPrefix(void)
3674 3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	610 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	611 if (!module_search_path)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	612 calculate_path();
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	613 return exec_prefix;
3674 3eaf2c673a11 provide access to $(exec_)prefix Guido van Rossum <guido@python.org> parents: 3621 diff changeset	614 }
5568 139ab21d2629 Make delimiter and separator static for K&R C. Guido van Rossum <guido@python.org> parents: 5500 diff changeset	615
139ab21d2629 Make delimiter and separator static for K&R C. Guido van Rossum <guido@python.org> parents: 5500 diff changeset	616 char *
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13620 diff changeset	617 Py_GetProgramFullPath(void)
5568 139ab21d2629 Make delimiter and separator static for K&R C. Guido van Rossum <guido@python.org> parents: 5500 diff changeset	618 {
13428 0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	619 if (!module_search_path)
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	620 calculate_path();
0d6af303a86c ANSI-fied sources, converted to four-space indentation. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	621 return progpath;
5568 139ab21d2629 Make delimiter and separator static for K&R C. Guido van Rossum <guido@python.org> parents: 5500 diff changeset	622 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/getpath.c @ 16798:258dcafe2d0b legacy-trunk