diff options
Diffstat (limited to 'Src/utils.c')
| -rw-r--r-- | Src/utils.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/Src/utils.c b/Src/utils.c index 1de3d9578..ab3b0c274 100644 --- a/Src/utils.c +++ b/Src/utils.c @@ -692,9 +692,23 @@ ispwd(char *s) { struct stat sbuf, tbuf; - if (stat(unmeta(s), &sbuf) == 0 && stat(".", &tbuf) == 0) - if (sbuf.st_dev == tbuf.st_dev && sbuf.st_ino == tbuf.st_ino) - return 1; + /* POSIX: environment PWD must be absolute */ + if (*s != '/') + return 0; + + if (stat((s = unmeta(s)), &sbuf) == 0 && stat(".", &tbuf) == 0) + if (sbuf.st_dev == tbuf.st_dev && sbuf.st_ino == tbuf.st_ino) { + /* POSIX: No element of $PWD may be "." or ".." */ + while (*s) { + if (s[0] == '.' && + (!s[1] || s[1] == '/' || + (s[1] == '.' && (!s[2] || s[2] == '/')))) + break; + while (*s++ != '/' && *s) + continue; + } + return !*s; + } return 0; } |