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| author | Peter Stephenson <pws@users.sourceforge.net> | 2009-03-23 10:58:56 +0000 |
|---|---|---|
| committer | Peter Stephenson <pws@users.sourceforge.net> | 2009-03-23 10:58:56 +0000 |
| commit | 4b2ad07d39a3def549a3382eeec36dc1b222ff03 (patch) | |
| tree | 1f61cfb94f0806cc19f1c4b8860d7e7927c9bcf3 /Src/utils.c | |
| parent | 28a809886d3df86ffb07c302ff717b621caf22a2 (diff) | |
| download | zsh-4b2ad07d39a3def549a3382eeec36dc1b222ff03.tar.gz zsh-4b2ad07d39a3def549a3382eeec36dc1b222ff03.zip | |
26767: fix file descriptor leak in 26763
Diffstat (limited to 'Src/utils.c')
| -rw-r--r-- | Src/utils.c | 47 |
1 files changed, 32 insertions, 15 deletions
diff --git a/Src/utils.c b/Src/utils.c index 9716e162c..b673c4739 100644 --- a/Src/utils.c +++ b/Src/utils.c @@ -5374,6 +5374,9 @@ lchdir(char const *path, struct dirsav *d, int hard) int err; struct stat st2; #endif +#ifdef HAVE_FCHDIR + int close_dir = 0; +#endif if (!d) { ds.ino = ds.dev = 0; @@ -5400,11 +5403,6 @@ lchdir(char const *path, struct dirsav *d, int hard) d->ino = st1.st_ino; } } -#ifdef HAVE_FCHDIR - if (d->dirfd < 0 && (d->dirfd = open(".", O_RDONLY | O_NOCTTY)) < 0 && - zgetdir(d) && *d->dirname != '/') - d->dirfd = open("..", O_RDONLY | O_NOCTTY); -#endif #ifdef HAVE_LSTAT if (!hard) @@ -5420,7 +5418,16 @@ lchdir(char const *path, struct dirsav *d, int hard) } return zchdir((char *) path); } + #ifdef HAVE_LSTAT +#ifdef HAVE_FCHDIR + if (d->dirfd < 0) { + close_dir = 1; + if ((d->dirfd = open(".", O_RDONLY | O_NOCTTY) < 0) && + zgetdir(d) && *d->dirname != '/') + d->dirfd = open("..", O_RDONLY | O_NOCTTY); + } +#endif if (*path == '/') if (chdir("/") < 0) zwarn("failed to chdir(/): %e", errno); @@ -5428,12 +5435,16 @@ lchdir(char const *path, struct dirsav *d, int hard) while(*path == '/') path++; if(!*path) { - if (d == &ds) { + if (d == &ds) zsfree(ds.dirname); - if (ds.dirfd >=0) - close(ds.dirfd); - } else + else d->level = level; +#ifdef HAVE_FCHDIR + if (d->dirfd >=0 && close_dir) { + close(d->dirfd); + d->dirfd = -1; + } +#endif return 0; } for(pptr = path; *++pptr && *pptr != '/'; ) ; @@ -5468,19 +5479,25 @@ lchdir(char const *path, struct dirsav *d, int hard) } } if (restoredir(d)) { - if (d == &ds) { + if (d == &ds) zsfree(ds.dirname); - if (ds.dirfd >=0) - close(ds.dirfd); +#ifdef HAVE_FCHDIR + if (d->dirfd >=0 && close_dir) { + close(d->dirfd); + d->dirfd = -1; } +#endif errno = err; return -2; } - if (d == &ds) { + if (d == &ds) zsfree(ds.dirname); - if (ds.dirfd >=0) - close(ds.dirfd); +#ifdef HAVE_FCHDIR + if (d->dirfd >=0 && close_dir) { + close(d->dirfd); + d->dirfd = -1; } +#endif errno = err; return -1; #endif /* HAVE_LSTAT */ |