projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| cc8dd839 | 1 | /* @(#)getpwent.c 4.6 (Berkeley) 85/01/21 */ |
| a4b07b23 BJ |
2 | #include <stdio.h> |
| 3 | #include <pwd.h> | |
| 499a4b51 | 4 | #include <ndbm.h> |
| a4b07b23 | 5 | |
| a4b07b23 BJ |
6 | static char EMPTY[] = ""; |
| 7 | static FILE *pwf = NULL; | |
| 8 | static char line[BUFSIZ+1]; | |
| 9 | static struct passwd passwd; | |
| cc8dd839 S |
10 | |
| 11 | /* | |
| 12 | * The following are shared with getpwnamuid.c | |
| 13 | */ | |
| 14 | char *_pw_file = "/etc/passwd"; | |
| 15 | DBM *_pw_db; | |
| 16 | int _pw_stayopen; | |
| a4b07b23 BJ |
17 | |
| 18 | setpwent() | |
| 19 | { | |
| 499a4b51 | 20 | if (pwf == NULL) |
| cc8dd839 | 21 | pwf = fopen(_pw_file, "r"); |
| a4b07b23 | 22 | else |
| 499a4b51 | 23 | rewind(pwf); |
| a4b07b23 BJ |
24 | } |
| 25 | ||
| 26 | endpwent() | |
| 27 | { | |
| 499a4b51 RC |
28 | if (pwf != NULL) { |
| 29 | fclose(pwf); | |
| a4b07b23 BJ |
30 | pwf = NULL; |
| 31 | } | |
| 499a4b51 | 32 | if (_pw_db != (DBM *)0) { |
| 9aabfbe8 | 33 | dbm_close(_pw_db); |
| 499a4b51 RC |
34 | _pw_db = (DBM *)0; |
| 35 | _pw_stayopen = 0; | |
| 36 | } | |
| a4b07b23 BJ |
37 | } |
| 38 | ||
| 39 | static char * | |
| 40 | pwskip(p) | |
| 41 | register char *p; | |
| 42 | { | |
| 0d5dcbbf | 43 | while (*p && *p != ':' && *p != '\n') |
| a4b07b23 | 44 | ++p; |
| 499a4b51 RC |
45 | if (*p) |
| 46 | *p++ = 0; | |
| a4b07b23 BJ |
47 | return(p); |
| 48 | } | |
| 49 | ||
| 50 | struct passwd * | |
| 51 | getpwent() | |
| 52 | { | |
| 53 | register char *p; | |
| 54 | ||
| 55 | if (pwf == NULL) { | |
| cc8dd839 | 56 | if ((pwf = fopen( _pw_file, "r" )) == NULL) |
| a4b07b23 BJ |
57 | return(0); |
| 58 | } | |
| 59 | p = fgets(line, BUFSIZ, pwf); | |
| 499a4b51 | 60 | if (p == NULL) |
| a4b07b23 BJ |
61 | return(0); |
| 62 | passwd.pw_name = p; | |
| 63 | p = pwskip(p); | |
| 64 | passwd.pw_passwd = p; | |
| 65 | p = pwskip(p); | |
| 66 | passwd.pw_uid = atoi(p); | |
| 67 | p = pwskip(p); | |
| 68 | passwd.pw_gid = atoi(p); | |
| 69 | passwd.pw_quota = 0; | |
| 70 | passwd.pw_comment = EMPTY; | |
| 71 | p = pwskip(p); | |
| 72 | passwd.pw_gecos = p; | |
| 73 | p = pwskip(p); | |
| 74 | passwd.pw_dir = p; | |
| 75 | p = pwskip(p); | |
| 76 | passwd.pw_shell = p; | |
| 499a4b51 RC |
77 | while (*p && *p != '\n') |
| 78 | p++; | |
| a4b07b23 BJ |
79 | *p = '\0'; |
| 80 | return(&passwd); | |
| 81 | } | |
| 02d7fd83 RC |
82 | |
| 83 | setpwfile(file) | |
| 84 | char *file; | |
| 85 | { | |
| cc8dd839 | 86 | _pw_file = file; |
| 02d7fd83 | 87 | } |