diff options
Diffstat (limited to 'sysdeps/posix/getcwd.c')
| -rw-r--r-- | sysdeps/posix/getcwd.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sysdeps/posix/getcwd.c b/sysdeps/posix/getcwd.c index d40d8d6822..c7fda3eb2c 100644 --- a/sysdeps/posix/getcwd.c +++ b/sysdeps/posix/getcwd.c @@ -217,6 +217,7 @@ __getcwd (buf, size) char *path; register char *pathp; struct stat st; + int prev_errno = errno; if (size == 0) { @@ -310,6 +311,9 @@ __getcwd (buf, size) dirstream = __opendir (dotp); if (dirstream == NULL) goto lose; + /* Clear errno to distinguish EOF from error if readdir returns + NULL. */ + __set_errno (0); while ((d = __readdir (dirstream)) != NULL) { if (d->d_name[0] == '.' && @@ -343,6 +347,10 @@ __getcwd (buf, size) { int save = errno; (void) __closedir (dirstream); + if (save == 0) + /* EOF on dirstream, which means that the current directory + has been removed. */ + save = ENOENT; __set_errno (save); goto lose; } @@ -393,6 +401,10 @@ __getcwd (buf, size) free ((__ptr_t) dotlist); memmove (path, pathp, path + size - pathp); + + /* Restore errno on successful return. */ + __set_errno (prev_errno); + return path; lose: |