projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 99ee2953 KB |
1 | /*- |
| 2 | * Copyright (c) 1990 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * %sccs.include.redist.c% | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef lint | |
| 0d67ba24 | 9 | static char sccsid[] = "@(#)pw_copy.c 5.3 (Berkeley) %G%"; |
| 99ee2953 KB |
10 | #endif /* not lint */ |
| 11 | ||
| 12 | /* | |
| 13 | * This module is used to copy the master password file, replacing a single | |
| 14 | * record, by chpass(1) and passwd(1). | |
| 15 | */ | |
| 16 | ||
| 17 | #include <pwd.h> | |
| 18 | #include <stdio.h> | |
| 19 | #include <string.h> | |
| 20 | ||
| 0d67ba24 | 21 | extern char *progname, *tempname; |
| 99ee2953 | 22 | |
| 456319a0 KB |
23 | pw_copy(ffd, tfd, pw) |
| 24 | int ffd, tfd; | |
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25 | struct passwd *pw; |
| 26 | { | |
| 27 | register FILE *from, *to; | |
| 28 | register int done; | |
| 29 | register char *p; | |
| 30 | char buf[8192]; | |
| 31 | ||
| 32 | if (!(from = fdopen(ffd, "r"))) | |
| 33 | pw_error(_PATH_MASTERPASSWD, 1, 1); | |
| 456319a0 | 34 | if (!(to = fdopen(tfd, "w"))) |
| 99ee2953 KB |
35 | pw_error(tempname, 1, 1); |
| 36 | ||
| 37 | for (done = 0; fgets(buf, sizeof(buf), from);) { | |
| 38 | if (!index(buf, '\n')) { | |
| 0d67ba24 KB |
39 | (void)fprintf(stderr, "%s: %s: line too long\n", |
| 40 | progname, _PATH_MASTERPASSWD); | |
| 41 | pw_error(NULL, 0, 1); | |
| 99ee2953 KB |
42 | } |
| 43 | if (done) { | |
| 44 | (void)fprintf(to, "%s", buf); | |
| 0d67ba24 KB |
45 | if (ferror(to)) |
| 46 | goto err; | |
| 99ee2953 KB |
47 | continue; |
| 48 | } | |
| 49 | if (!(p = index(buf, ':'))) { | |
| 0d67ba24 KB |
50 | (void)fprintf(stderr, "%s: %s: corrupted entry\n", |
| 51 | progname, _PATH_MASTERPASSWD); | |
| 52 | pw_error(NULL, 0, 1); | |
| 99ee2953 KB |
53 | } |
| 54 | *p = '\0'; | |
| 55 | if (strcmp(buf, pw->pw_name)) { | |
| 56 | *p = ':'; | |
| 57 | (void)fprintf(to, "%s", buf); | |
| 0d67ba24 KB |
58 | if (ferror(to)) |
| 59 | goto err; | |
| 99ee2953 KB |
60 | continue; |
| 61 | } | |
| 62 | (void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n", | |
| 63 | pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, | |
| 64 | pw->pw_class, pw->pw_change, pw->pw_expire, pw->pw_gecos, | |
| 65 | pw->pw_dir, pw->pw_shell); | |
| 66 | done = 1; | |
| 0d67ba24 KB |
67 | if (ferror(to)) |
| 68 | goto err; | |
| 99ee2953 KB |
69 | } |
| 70 | if (!done) | |
| 71 | (void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n", | |
| 72 | pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, | |
| 73 | pw->pw_class, pw->pw_change, pw->pw_expire, pw->pw_gecos, | |
| 74 | pw->pw_dir, pw->pw_shell); | |
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75 | |
| 76 | if (ferror(to)) | |
| 77 | err: pw_error(NULL, 1, 1); | |
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78 | (void)fclose(to); |
| 79 | } |