fix constraint violation in ftw
[musl] / src / legacy / cuserid.c
1 #define _GNU_SOURCE
2 #include <pwd.h>
3 #include <stdio.h>
4 #include <unistd.h>
5
6 char *cuserid(char *buf)
7 {
8         struct passwd pw, *ppw;
9         long pwb[256];
10         if (getpwuid_r(geteuid(), &pw, (void *)pwb, sizeof pwb, &ppw))
11                 return 0;
12         snprintf(buf, L_cuserid, "%s", pw.pw_name);
13         return buf;
14 }