Commit | Line | Data |
---|---|---|
0a237a55 BJ |
1 | /* @(#)getpw.c 4.1 (Berkeley) %G% */ |
2 | #include <stdio.h> | |
3 | ||
4 | getpw(uid, buf) | |
5 | int uid; | |
6 | char buf[]; | |
7 | { | |
8 | static FILE *pwf; | |
9 | register n, c; | |
10 | register char *bp; | |
11 | ||
12 | if(pwf == 0) | |
13 | pwf = fopen("/etc/passwd", "r"); | |
14 | if(pwf == NULL) | |
15 | return(1); | |
16 | rewind(pwf); | |
17 | ||
18 | for (;;) { | |
19 | bp = buf; | |
20 | while((c=getc(pwf)) != '\n') { | |
21 | if(c == EOF) | |
22 | return(1); | |
23 | *bp++ = c; | |
24 | } | |
25 | *bp++ = '\0'; | |
26 | bp = buf; | |
27 | n = 3; | |
28 | while(--n) | |
29 | while((c = *bp++) != ':') | |
30 | if(c == '\n') | |
31 | return(1); | |
32 | while((c = *bp++) != ':') { | |
33 | if(c<'0' || c>'9') | |
34 | continue; | |
35 | n = n*10+c-'0'; | |
36 | } | |
37 | if(n == uid) | |
38 | return(0); | |
39 | } | |
40 | } |