projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| bb0cfa24 DF |
1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef lint | |
| 8 | static char sccsid[] = "@(#)getpw.c 5.1 (Berkeley) %G%"; | |
| 9 | #endif not lint | |
| 10 | ||
| 0a237a55 BJ |
11 | #include <stdio.h> |
| 12 | ||
| 13 | getpw(uid, buf) | |
| 14 | int uid; | |
| 15 | char buf[]; | |
| 16 | { | |
| 17 | static FILE *pwf; | |
| 18 | register n, c; | |
| 19 | register char *bp; | |
| 20 | ||
| 21 | if(pwf == 0) | |
| 22 | pwf = fopen("/etc/passwd", "r"); | |
| 23 | if(pwf == NULL) | |
| 24 | return(1); | |
| 25 | rewind(pwf); | |
| 26 | ||
| 27 | for (;;) { | |
| 28 | bp = buf; | |
| 29 | while((c=getc(pwf)) != '\n') { | |
| 30 | if(c == EOF) | |
| 31 | return(1); | |
| 32 | *bp++ = c; | |
| 33 | } | |
| 34 | *bp++ = '\0'; | |
| 35 | bp = buf; | |
| 36 | n = 3; | |
| 37 | while(--n) | |
| 38 | while((c = *bp++) != ':') | |
| 39 | if(c == '\n') | |
| 40 | return(1); | |
| 41 | while((c = *bp++) != ':') { | |
| 42 | if(c<'0' || c>'9') | |
| 43 | continue; | |
| 44 | n = n*10+c-'0'; | |
| 45 | } | |
| 46 | if(n == uid) | |
| 47 | return(0); | |
| 48 | } | |
| 49 | } |