Rev 5191 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
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| 39 | #include |
39 | #include |
| 40 | #endif |
40 | #endif |
| Line 41... | Line 41... | ||
| 41 | 41 | ||
| Line 42... | Line -... | ||
| 42 | #include "libiberty.h" |
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| 43 | - | ||
| 44 | /* Virtually every UN*X system now in common use (except for pre-4.3-tahoe |
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| 45 | BSD systems) now provides getcwd as called for by POSIX. Allow for |
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| 46 | the few exceptions to the general rule here. */ |
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| 47 | - | ||
| 48 | #if !defined(HAVE_GETCWD) && defined(HAVE_GETWD) |
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| 49 | /* Prototype in case the system headers doesn't provide it. */ |
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| 50 | extern char *getwd (); |
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| Line 51... | Line 42... | ||
| 51 | #define getcwd(buf,len) getwd(buf) |
42 | #include "libiberty.h" |
| 52 | #endif |
43 | |
| 53 | 44 | ||
| 54 | #ifdef MAXPATHLEN |
45 | #ifdef MAXPATHLEN |
| 55 | #define GUESSPATHLEN (MAXPATHLEN + 1) |
46 | #define GUESSPATHLEN (MAXPATHLEN + 1) |
| Line 56... | Line -... | ||
| 56 | #else |
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| 57 | #define GUESSPATHLEN 100 |
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| 58 | #endif |
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| 59 | - | ||
| 60 | #if !(defined (VMS) || (defined(_WIN32) && !defined(__CYGWIN__))) |
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| 61 | - | ||
| 62 | /* Get the working directory. Use the PWD environment variable if it's |
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| 63 | set correctly, since this is faster and gives more uniform answers |
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| 64 | to the user. Yield the working directory if successful; otherwise, |
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| 65 | yield 0 and set errno. */ |
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| 66 | - | ||
| 67 | char * |
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| 68 | getpwd (void) |
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| 69 | { |
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| 70 | static char *pwd; |
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| 71 | static int failure_errno; |
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| 72 | - | ||
| 73 | char *p = pwd; |
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| 74 | size_t s; |
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| 75 | struct stat dotstat, pwdstat; |
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| 76 | - | ||
| 77 | if (!p && !(errno = failure_errno)) |
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| 78 | { |
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| 79 | if (! ((p = getenv ("PWD")) != 0 |
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| 80 | && *p == '/' |
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| 81 | && stat (p, &pwdstat) == 0 |
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| 82 | && stat (".", &dotstat) == 0 |
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| 83 | && dotstat.st_ino == pwdstat.st_ino |
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| 84 | && dotstat.st_dev == pwdstat.st_dev)) |
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| 85 | - | ||
| 86 | /* The shortcut didn't work. Try the slow, ``sure'' way. */ |
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| 87 | for (s = GUESSPATHLEN; !getcwd (p = XNEWVEC (char, s), s); s *= 2) |
47 | #else |
| 88 | { |
48 | #define GUESSPATHLEN 100 |
| 89 | int e = errno; |
49 | #endif |
| 90 | free (p); |
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| 91 | #ifdef ERANGE |
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| 92 | if (e != ERANGE) |
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| 93 | #endif |
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| 94 | { |
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| 95 | errno = failure_errno = e; |
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| Line 96... | Line -... | ||
| 96 | p = 0; |
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| 97 | break; |
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| 98 | } |
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| 99 | } |
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| 100 | - | ||
| 101 | /* Cache the result. This assumes that the program does |
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| Line 102... | Line 50... | ||
| 102 | not invoke chdir between calls to getpwd. */ |
50 | |
| - | 51 | #ifndef MAXPATHLEN |
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| - | 52 | #define MAXPATHLEN 255 |
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| - | 53 | #endif |
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| - | 54 | ||
| - | 55 | ||
| - | 56 | static char *getccwd(char *buf, size_t size) |
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| - | 57 | { |
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| Line 103... | Line 58... | ||
| 103 | pwd = p; |
58 | int bsize; |
| 104 | } |
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| 105 | return p; |
59 | __asm__ __volatile__( |
| Line 106... | Line 60... | ||
| 106 | } |
60 | "int $0x40" |
| 107 | 61 | :"=a"(bsize) |
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| 108 | #else /* VMS || _WIN32 && !__CYGWIN__ */ |
62 | :"a"(30),"b"(2),"c"(buf), "d"(size) |
| 109 | 63 | :"memory"); |
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| Line 110... | Line 64... | ||
| 110 | #ifndef MAXPATHLEN |
64 | |
| 111 | #define MAXPATHLEN 255 |
65 | return buf; |
| 112 | #endif |
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| 113 | - | ||
| 114 | char * |
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| 115 | getpwd (void) |
66 | }; |
| 116 | { |
67 | |
| 117 | static char *pwd = 0; |
68 | char * |
| Line 118... | Line -... | ||
| 118 | - | ||
| - | 69 | getpwd (void) |
|