Mercurial > cpython-lru_cache-weakref

annotate Python/getcwd.c @ 58973:db86bf39ccaa legacy-trunk

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Issue 7970: When email.Parser.Parser parses a MIME message of type message/rfc822 it turns it into an object whose body consists of a list containing a single Message object. HeaderParser, on the other hand, just copies the body as a string. Generator.flatten has a special handler for the message mime type that expected the body to be the one item list. This fails if the message was parsed by HeaderParser. So we now check to see if the body is a string first, and if so just we just emit it.
author R. David Murray <rdmurray@bitdance.com>
date Sun, 21 Feb 2010 04:23:00 +0000
parents b535c191a44b
children e38335d4df91 5cea27275af1
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2 /* Two PD getcwd() implementations.
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3 Author: Guido van Rossum, CWI Amsterdam, Jan 1991, <guido@cwi.nl>. */
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4
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5 #include <stdio.h>
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6 #include <errno.h>
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7
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8 #ifdef HAVE_GETWD
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9
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10 /* Version for BSD systems -- use getwd() */
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11
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12 #ifdef HAVE_SYS_PARAM_H
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13 #include <sys/param.h>
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14 #endif
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16 #ifndef MAXPATHLEN
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17 #if defined(PATH_MAX) && PATH_MAX > 1024
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18 #define MAXPATHLEN PATH_MAX
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19 #else
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20 #define MAXPATHLEN 1024
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21 #endif
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22 #endif
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23
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24 extern char *getwd(char *);
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25
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26 char *
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27 getcwd(char *buf, int size)
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28 {
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29 char localbuf[MAXPATHLEN+1];
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30 char *ret;
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31
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32 if (size <= 0) {
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33 errno = EINVAL;
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34 return NULL;
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35 }
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36 ret = getwd(localbuf);
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37 if (ret != NULL && strlen(localbuf) >= (size_t)size) {
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38 errno = ERANGE;
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39 return NULL;
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40 }
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41 if (ret == NULL) {
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42 errno = EACCES; /* Most likely error */
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43 return NULL;
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44 }
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45 strncpy(buf, localbuf, size);
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46 return buf;
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47 }
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48
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49 #else /* !HAVE_GETWD */
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50
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51 /* Version for really old UNIX systems -- use pipe from pwd */
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52
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53 #ifndef PWD_CMD
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54 #define PWD_CMD "/bin/pwd"
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55 #endif
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57 char *
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58 getcwd(char *buf, int size)
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59 {
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60 FILE *fp;
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61 char *p;
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62 int sts;
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63 if (size <= 0) {
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64 errno = EINVAL;
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65 return NULL;
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66 }
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67 if ((fp = popen(PWD_CMD, "r")) == NULL)
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68 return NULL;
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69 if (fgets(buf, size, fp) == NULL || (sts = pclose(fp)) != 0) {
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70 errno = EACCES; /* Most likely error */
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71 return NULL;
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72 }
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73 for (p = buf; *p != '\n'; p++) {
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74 if (*p == '\0') {
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75 errno = ERANGE;
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76 return NULL;
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77 }
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78 }
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79 *p = '\0';
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80 return buf;
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81 }
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82
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83 #endif /* !HAVE_GETWD */