diff options
| -rw-r--r-- | src/legacy/cuserid.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/legacy/cuserid.c b/src/legacy/cuserid.c index 07866acf..dcaf73d4 100644 --- a/src/legacy/cuserid.c +++ b/src/legacy/cuserid.c @@ -9,12 +9,13 @@ char *cuserid(char *buf) static char usridbuf[L_cuserid]; struct passwd pw, *ppw; long pwb[256]; + if (buf) *buf = 0; getpwuid_r(geteuid(), &pw, (void *)pwb, sizeof pwb, &ppw); if (!ppw) - return 0; + return buf; size_t len = strnlen(pw.pw_name, L_cuserid); if (len == L_cuserid) - return 0; + return buf; if (!buf) buf = usridbuf; memcpy(buf, pw.pw_name, len+1); return buf; |