aboutsummaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/legacy/cuserid.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/legacy/cuserid.c b/src/legacy/cuserid.c
index fd7832e4..3ff115a1 100644
--- a/src/legacy/cuserid.c
+++ b/src/legacy/cuserid.c
@@ -2,6 +2,7 @@
#include <pwd.h>
#include <stdio.h>
#include <unistd.h>
+#include <string.h>
char *cuserid(char *buf)
{
@@ -10,7 +11,10 @@ char *cuserid(char *buf)
long pwb[256];
if (getpwuid_r(geteuid(), &pw, (void *)pwb, sizeof pwb, &ppw))
return 0;
+ size_t len = strnlen(pw.pw_name, L_cuserid);
+ if (len == L_cuserid)
+ return 0;
if (!buf) buf = usridbuf;
- snprintf(buf, L_cuserid, "%s", pw.pw_name);
+ memcpy(buf, pw.pw_name, len+1);
return buf;
}