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fix memory leak on failure in realpath

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This commit is contained in:
Rich Felker 2011-06-18 07:41:14 -04:00
commit d43ff110bc
1 changed files with 4 additions and 4 deletions
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8
src/misc/realpath.c
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@ -19,16 +19,16 @@ char *realpath(const char *filename, char *resolved)
return 0; return 0;
} }
fd = open(filename, O_RDONLY|O_NONBLOCK);
if (fd < 0) return 0;
snprintf(buf, sizeof buf, "/proc/self/fd/%d", fd);
if (!resolved) { if (!resolved) {
alloc = 1; alloc = 1;
resolved = malloc(PATH_MAX); resolved = malloc(PATH_MAX);
if (!resolved) return 0; if (!resolved) return 0;
} }
fd = open(filename, O_RDONLY|O_NONBLOCK);
if (fd < 0) return 0;
snprintf(buf, sizeof buf, "/proc/self/fd/%d", fd);
r = readlink(buf, resolved, PATH_MAX-1); r = readlink(buf, resolved, PATH_MAX-1);
if (r < 0) goto err; if (r < 0) goto err;
resolved[r] = 0; resolved[r] = 0;