diff options
| author | Lennart Poettering <lennart@poettering.net> | 2015-09-03 18:23:26 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2015-09-04 09:07:31 +0200 |
| commit | ef5c570edfd8afb20e3b04d3711e111a1dea0548 (patch) | |
| tree | 458750d6fc37079a2948f2f72220c2ecc96839ff /src/basic/util.c | |
| parent | b3ac818be8d73c97dc4f74ba8bbd2091506df2e6 (diff) | |
util: document why parse_uid() returns ENXIO
parse_uid() returns EINVAL for invalid strings, but ENXIO for the
(uid_t) -1 user ids in order to distinguish these two cases. Document
this.
Diffstat (limited to 'src/basic/util.c')
| -rw-r--r-- | src/basic/util.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/basic/util.c b/src/basic/util.c index beec7cb7dd..86aacad307 100644 --- a/src/basic/util.c +++ b/src/basic/util.c @@ -403,7 +403,10 @@ int parse_uid(const char *s, uid_t* ret_uid) { return -ERANGE; if (!uid_is_valid(uid)) - return -ENXIO; + return -ENXIO; /* we return ENXIO instead of EINVAL + * here, to make it easy to distuingish + * invalid numeric uids invalid + * strings. */ if (ret_uid) *ret_uid = uid; |