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| author | Kenichi Handa | 2012-11-23 23:36:24 +0900 |
|---|---|---|
| committer | Kenichi Handa | 2012-11-23 23:36:24 +0900 |
| commit | 2aaec2d9be5cec44ea3b59cba476fd3e091f2fc9 (patch) | |
| tree | 3711b97807201b7eeaa066003b1c3a4ce929e5bb /src/sysdep.c | |
| parent | e1d276cbf9e18f13101328f56bed1a1c0a66e63a (diff) | |
| parent | e7d0e5ee247a155a268ffbf80bedbe25e15b5032 (diff) | |
| download | emacs-2aaec2d9be5cec44ea3b59cba476fd3e091f2fc9.tar.gz emacs-2aaec2d9be5cec44ea3b59cba476fd3e091f2fc9.zip | |
Diffstat (limited to 'src/sysdep.c')
| -rw-r--r-- | src/sysdep.c | 102 |
1 files changed, 4 insertions, 98 deletions
diff --git a/src/sysdep.c b/src/sysdep.c index 7c5c144fa8c..bc4dc91509f 100644 --- a/src/sysdep.c +++ b/src/sysdep.c | |||
| @@ -101,7 +101,6 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ | |||
| 101 | #define _P_WAIT 0 | 101 | #define _P_WAIT 0 |
| 102 | int _cdecl _spawnlp (int, const char *, const char *, ...); | 102 | int _cdecl _spawnlp (int, const char *, const char *, ...); |
| 103 | int _cdecl _getpid (void); | 103 | int _cdecl _getpid (void); |
| 104 | extern char *getwd (char *); | ||
| 105 | #endif | 104 | #endif |
| 106 | 105 | ||
| 107 | #include "syssignal.h" | 106 | #include "syssignal.h" |
| @@ -134,12 +133,12 @@ char* | |||
| 134 | get_current_dir_name (void) | 133 | get_current_dir_name (void) |
| 135 | { | 134 | { |
| 136 | char *buf; | 135 | char *buf; |
| 137 | char *pwd; | 136 | char *pwd = getenv ("PWD"); |
| 138 | struct stat dotstat, pwdstat; | 137 | struct stat dotstat, pwdstat; |
| 139 | /* If PWD is accurate, use it instead of calling getwd. PWD is | 138 | /* If PWD is accurate, use it instead of calling getcwd. PWD is |
| 140 | sometimes a nicer name, and using it may avoid a fatal error if a | 139 | sometimes a nicer name, and using it may avoid a fatal error if a |
| 141 | parent directory is searchable but not readable. */ | 140 | parent directory is searchable but not readable. */ |
| 142 | if ((pwd = getenv ("PWD")) != 0 | 141 | if (pwd |
| 143 | && (IS_DIRECTORY_SEP (*pwd) || (*pwd && IS_DEVICE_SEP (pwd[1]))) | 142 | && (IS_DIRECTORY_SEP (*pwd) || (*pwd && IS_DEVICE_SEP (pwd[1]))) |
| 144 | && stat (pwd, &pwdstat) == 0 | 143 | && stat (pwd, &pwdstat) == 0 |
| 145 | && stat (".", &dotstat) == 0 | 144 | && stat (".", &dotstat) == 0 |
| @@ -155,7 +154,6 @@ get_current_dir_name (void) | |||
| 155 | return NULL; | 154 | return NULL; |
| 156 | strcpy (buf, pwd); | 155 | strcpy (buf, pwd); |
| 157 | } | 156 | } |
| 158 | #ifdef HAVE_GETCWD | ||
| 159 | else | 157 | else |
| 160 | { | 158 | { |
| 161 | size_t buf_size = 1024; | 159 | size_t buf_size = 1024; |
| @@ -179,22 +177,6 @@ get_current_dir_name (void) | |||
| 179 | return NULL; | 177 | return NULL; |
| 180 | } | 178 | } |
| 181 | } | 179 | } |
| 182 | #else | ||
| 183 | else | ||
| 184 | { | ||
| 185 | /* We need MAXPATHLEN here. */ | ||
| 186 | buf = malloc (MAXPATHLEN + 1); | ||
| 187 | if (!buf) | ||
| 188 | return NULL; | ||
| 189 | if (getwd (buf) == NULL) | ||
| 190 | { | ||
| 191 | int tmp_errno = errno; | ||
| 192 | free (buf); | ||
| 193 | errno = tmp_errno; | ||
| 194 | return NULL; | ||
| 195 | } | ||
| 196 | } | ||
| 197 | #endif | ||
| 198 | return buf; | 180 | return buf; |
| 199 | } | 181 | } |
| 200 | #endif | 182 | #endif |
| @@ -521,7 +503,7 @@ sys_subshell (void) | |||
| 521 | const char *sh = 0; | 503 | const char *sh = 0; |
| 522 | 504 | ||
| 523 | #ifdef DOS_NT /* MW, Aug 1993 */ | 505 | #ifdef DOS_NT /* MW, Aug 1993 */ |
| 524 | getwd (oldwd); | 506 | getcwd (oldwd, sizeof oldwd); |
| 525 | if (sh == 0) | 507 | if (sh == 0) |
| 526 | sh = (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */ | 508 | sh = (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */ |
| 527 | #endif | 509 | #endif |
| @@ -2238,82 +2220,6 @@ emacs_readlink (char const *filename, char initial_buf[READLINK_BUFSIZE]) | |||
| 2238 | &emacs_norealloc_allocator, careadlinkatcwd); | 2220 | &emacs_norealloc_allocator, careadlinkatcwd); |
| 2239 | } | 2221 | } |
| 2240 | 2222 | ||
| 2241 | #ifdef USG | ||
| 2242 | /* | ||
| 2243 | * All of the following are for USG. | ||
| 2244 | * | ||
| 2245 | * On USG systems the system calls are INTERRUPTIBLE by signals | ||
| 2246 | * that the user program has elected to catch. Thus the system call | ||
| 2247 | * must be retried in these cases. To handle this without massive | ||
| 2248 | * changes in the source code, we remap the standard system call names | ||
| 2249 | * to names for our own functions in sysdep.c that do the system call | ||
| 2250 | * with retries. Actually, for portability reasons, it is good | ||
| 2251 | * programming practice, as this example shows, to limit all actual | ||
| 2252 | * system calls to a single occurrence in the source. Sure, this | ||
| 2253 | * adds an extra level of function call overhead but it is almost | ||
| 2254 | * always negligible. Fred Fish, Unisoft Systems Inc. | ||
| 2255 | */ | ||
| 2256 | |||
| 2257 | /* | ||
| 2258 | * Warning, this function may not duplicate 4.2 action properly | ||
| 2259 | * under error conditions. | ||
| 2260 | */ | ||
| 2261 | |||
| 2262 | #if !defined (HAVE_GETWD) || defined (BROKEN_GETWD) | ||
| 2263 | |||
| 2264 | #ifndef MAXPATHLEN | ||
| 2265 | /* In 4.1, param.h fails to define this. */ | ||
| 2266 | #define MAXPATHLEN 1024 | ||
| 2267 | #endif | ||
| 2268 | |||
| 2269 | char * | ||
| 2270 | getwd (char *pathname) | ||
| 2271 | { | ||
| 2272 | char *npath, *spath; | ||
| 2273 | extern char *getcwd (char *, size_t); | ||
| 2274 | |||
| 2275 | block_input (); /* getcwd uses malloc */ | ||
| 2276 | spath = npath = getcwd ((char *) 0, MAXPATHLEN); | ||
| 2277 | if (spath == 0) | ||
| 2278 | { | ||
| 2279 | unblock_input (); | ||
| 2280 | return spath; | ||
| 2281 | } | ||
| 2282 | /* On Altos 3068, getcwd can return @hostname/dir, so discard | ||
| 2283 | up to first slash. Should be harmless on other systems. */ | ||
| 2284 | while (*npath && *npath != '/') | ||
| 2285 | npath++; | ||
| 2286 | strcpy (pathname, npath); | ||
| 2287 | free (spath); /* getcwd uses malloc */ | ||
| 2288 | unblock_input (); | ||
| 2289 | return pathname; | ||
| 2290 | } | ||
| 2291 | |||
| 2292 | #endif /* !defined (HAVE_GETWD) || defined (BROKEN_GETWD) */ | ||
| 2293 | #endif /* USG */ | ||
| 2294 | |||
| 2295 | /* Directory routines for systems that don't have them. */ | ||
| 2296 | |||
| 2297 | #ifdef HAVE_DIRENT_H | ||
| 2298 | |||
| 2299 | #include <dirent.h> | ||
| 2300 | |||
| 2301 | #if !defined (HAVE_CLOSEDIR) | ||
| 2302 | |||
| 2303 | int | ||
| 2304 | closedir (DIR *dirp /* stream from opendir */) | ||
| 2305 | { | ||
| 2306 | int rtnval; | ||
| 2307 | |||
| 2308 | rtnval = emacs_close (dirp->dd_fd); | ||
| 2309 | xfree (dirp); | ||
| 2310 | |||
| 2311 | return rtnval; | ||
| 2312 | } | ||
| 2313 | #endif /* not HAVE_CLOSEDIR */ | ||
| 2314 | #endif /* HAVE_DIRENT_H */ | ||
| 2315 | |||
| 2316 | |||
| 2317 | /* Return a struct timeval that is roughly equivalent to T. | 2223 | /* Return a struct timeval that is roughly equivalent to T. |
| 2318 | Use the least timeval not less than T. | 2224 | Use the least timeval not less than T. |
| 2319 | Return an extremal value if the result would overflow. */ | 2225 | Return an extremal value if the result would overflow. */ |