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 * $FreeBSD: src/usr.sbin/cron/cron/user.c,v 1.8 1999/08/28 01:15:50 peter Exp $ 18 */ 19 20 /* vix 26jan87 [log is in RCS file] 21 */ 22 23 24 #include "cron.h" 25 26 static char *User_name; 27 28 void 29 free_user(user *u) 30 { 31 entry *e, *ne; 32 33 free(u->name); 34 for (e = u->crontab; e != NULL; e = ne) { 35 ne = e->next; 36 free_entry(e); 37 } 38 free(u); 39 } 40 41 static void 42 log_error(const char *msg) 43 { 44 log_it(User_name, getpid(), "PARSE", msg); 45 } 46 47 user * 48 load_user(int crontab_fd, struct passwd *pw, char *name) 49 /* pw == NULL implies syscrontab */ 50 { 51 char envstr[MAX_ENVSTR]; 52 FILE *file; 53 user *u; 54 entry *e; 55 int status; 56 char **envp, **tenvp; 57 58 if (!(file = fdopen(crontab_fd, "r"))) { 59 warn("fdopen on crontab_fd in load_user"); 60 return NULL; 61 } 62 63 Debug(DPARS, ("load_user()\n")) 64 65 /* file is open. build user entry, then read the crontab file. 66 */ 67 if ((u = (user *) malloc(sizeof(user))) == NULL) { 68 errno = ENOMEM; 69 return NULL; 70 } 71 if ((u->name = strdup(name)) == NULL) { 72 free(u); 73 errno = ENOMEM; 74 return NULL; 75 } 76 u->crontab = NULL; 77 78 /* 79 * init environment. this will be copied/augmented for each entry. 80 */ 81 if ((envp = env_init()) == NULL) { 82 free(u->name); 83 free(u); 84 return NULL; 85 } 86 87 /* 88 * load the crontab 89 */ 90 while ((status = load_env(envstr, file)) >= OK) { 91 switch (status) { 92 case ERR: 93 free_user(u); 94 u = NULL; 95 goto done; 96 case FALSE: 97 User_name = u->name; /* for log_error */ 98 e = load_entry(file, log_error, pw, envp); 99 if (e) { 100 e->next = u->crontab; 101 u->crontab = e; 102 } 103 break; 104 case TRUE: 105 if ((tenvp = env_set(envp, envstr))) { 106 envp = tenvp; 107 } else { 108 free_user(u); 109 u = NULL; 110 goto done; 111 } 112 break; 113 } 114 } 115 116 done: 117 env_free(envp); 118 fclose(file); 119 Debug(DPARS, ("...load_user() done\n")) 120 return u; 121 } 122