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7cfb1923 WJ |
1 | /*- |
2 | * Copyright (c) 1990 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #ifndef lint | |
35 | static char sccsid[] = "@(#)pw_copy.c 5.3 (Berkeley) 5/2/91"; | |
36 | #endif /* not lint */ | |
37 | ||
38 | /* | |
39 | * This module is used to copy the master password file, replacing a single | |
40 | * record, by chpass(1) and passwd(1). | |
41 | */ | |
42 | ||
43 | #include <pwd.h> | |
44 | #include <stdio.h> | |
45 | #include <string.h> | |
46 | ||
47 | extern char *progname, *tempname; | |
48 | ||
49 | pw_copy(ffd, tfd, pw) | |
50 | int ffd, tfd; | |
51 | struct passwd *pw; | |
52 | { | |
53 | register FILE *from, *to; | |
54 | register int done; | |
55 | register char *p; | |
56 | char buf[8192]; | |
57 | ||
58 | if (!(from = fdopen(ffd, "r"))) | |
59 | pw_error(_PATH_MASTERPASSWD, 1, 1); | |
60 | if (!(to = fdopen(tfd, "w"))) | |
61 | pw_error(tempname, 1, 1); | |
62 | ||
63 | for (done = 0; fgets(buf, sizeof(buf), from);) { | |
64 | if (!index(buf, '\n')) { | |
65 | (void)fprintf(stderr, "%s: %s: line too long\n", | |
66 | progname, _PATH_MASTERPASSWD); | |
67 | pw_error(NULL, 0, 1); | |
68 | } | |
69 | if (done) { | |
70 | (void)fprintf(to, "%s", buf); | |
71 | if (ferror(to)) | |
72 | goto err; | |
73 | continue; | |
74 | } | |
75 | if (!(p = index(buf, ':'))) { | |
76 | (void)fprintf(stderr, "%s: %s: corrupted entry\n", | |
77 | progname, _PATH_MASTERPASSWD); | |
78 | pw_error(NULL, 0, 1); | |
79 | } | |
80 | *p = '\0'; | |
81 | if (strcmp(buf, pw->pw_name)) { | |
82 | *p = ':'; | |
83 | (void)fprintf(to, "%s", buf); | |
84 | if (ferror(to)) | |
85 | goto err; | |
86 | continue; | |
87 | } | |
88 | (void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n", | |
89 | pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, | |
90 | pw->pw_class, pw->pw_change, pw->pw_expire, pw->pw_gecos, | |
91 | pw->pw_dir, pw->pw_shell); | |
92 | done = 1; | |
93 | if (ferror(to)) | |
94 | goto err; | |
95 | } | |
96 | if (!done) | |
97 | (void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n", | |
98 | pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, | |
99 | pw->pw_class, pw->pw_change, pw->pw_expire, pw->pw_gecos, | |
100 | pw->pw_dir, pw->pw_shell); | |
101 | ||
102 | if (ferror(to)) | |
103 | err: pw_error(NULL, 1, 1); | |
104 | (void)fclose(to); | |
105 | } |