user.c revision 2312 
1/* Copyright 1988,1990,1993,1994 by Paul Vixie
2 * All rights reserved
3 *
4 * Distribute freely, except: don't remove my name from the source or
5 * documentation (don't take credit for my work), mark your changes (don't
6 * get me blamed for your possible bugs), don't alter or remove this
7 * notice.  May be sold if buildable source is provided to buyer.  No
8 * warrantee of any kind, express or implied, is included with this
9 * software; use at your own risk, responsibility for damages (if any) to
10 * anyone resulting from the use of this software rests entirely with the
11 * user.
12 *
13 * Send bug reports, bug fixes, enhancements, requests, flames, etc., and
14 * I'll try to keep a version up to date.  I can be reached as follows:
15 * Paul Vixie          <paul@vix.com>          uunet!decwrl!vixie!paul
16 */
17
18#if !defined(lint) && !defined(LINT)
19static char rcsid[] = "$Id: user.c,v 2.8 1994/01/15 20:43:43 vixie Exp $";
20#endif
21
22/* vix 26jan87 [log is in RCS file]
23 */
24
25
26#include "cron.h"
27
28
29void
30free_user(u)
31	user	*u;
32{
33	entry	*e, *ne;
34
35	free(u->name);
36	for (e = u->crontab;  e != NULL;  e = ne) {
37		ne = e->next;
38		free_entry(e);
39	}
40	free(u);
41}
42
43
44user *
45load_user(crontab_fd, pw, name)
46	int		crontab_fd;
47	struct passwd	*pw;		/* NULL implies syscrontab */
48	char		*name;
49{
50	char	envstr[MAX_ENVSTR];
51	FILE	*file;
52	user	*u;
53	entry	*e;
54	int	status;
55	char	**envp;
56
57	if (!(file = fdopen(crontab_fd, "r"))) {
58		perror("fdopen on crontab_fd in load_user");
59		return NULL;
60	}
61
62	Debug(DPARS, ("load_user()\n"))
63
64	/* file is open.  build user entry, then read the crontab file.
65	 */
66	u = (user *) malloc(sizeof(user));
67	u->name = strdup(name);
68	u->crontab = NULL;
69
70	/*
71	 * init environment.  this will be copied/augmented for each entry.
72	 */
73	envp = env_init();
74
75	/*
76	 * load the crontab
77	 */
78	while ((status = load_env(envstr, file)) >= OK) {
79		switch (status) {
80		case ERR:
81			free_user(u);
82			u = NULL;
83			goto done;
84		case FALSE:
85			e = load_entry(file, NULL, pw, envp);
86			if (e) {
87				e->next = u->crontab;
88				u->crontab = e;
89			}
90			break;
91		case TRUE:
92			envp = env_set(envp, envstr);
93			break;
94		}
95	}
96
97 done:
98	env_free(envp);
99	fclose(file);
100	Debug(DPARS, ("...load_user() done\n"))
101	return u;
102}
103