projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 7c9c5d18 | 1 | static char Sccsid[] = "@(#)username.c 1.2 %G%"; |
| d5766fc0 JL |
2 | /* |
| 3 | Gets user's login name. | |
| 4 | Note that the argument must be an integer. | |
| 5 | Returns pointer to login name on success, | |
| 6 | pointer to string representation of used ID on failure. | |
| 7 | ||
| 8 | Remembers user ID and login name for subsequent calls. | |
| 9 | */ | |
| 10 | ||
| 11 | username(uid) | |
| 12 | register int uid; | |
| 13 | { | |
| 14 | char pw[200]; | |
| 15 | static int ouid; | |
| 16 | static char lnam[9], *lptr; | |
| 17 | register int i; | |
| 18 | ||
| 19 | if (ouid!=uid || ouid==0) { | |
| 20 | if (getpw(uid,pw)) | |
| 21 | sprintf(lnam,"%d",uid); | |
| 22 | else { | |
| 23 | for (i=0; i<8; i++) | |
| 24 | if ((lnam[i] = pw[i])==':') break; | |
| 25 | lnam[i] = '\0'; | |
| 26 | } | |
| 27 | lptr = lnam; | |
| 28 | ouid = uid; | |
| 29 | } | |
| 30 | return(lptr); | |
| 31 | } |