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) 19 static const char rcsid[] = 20 "$FreeBSD$"; 21 #endif 22 23 /* vix 26jan87 [log is in RCS file] 24 */ 25 26 27 #include "cron.h" 28 29 static char *User_name; 30 31 void 32 free_user(u) 33 user *u; 34 { 35 entry *e, *ne; 36 37 free(u->name); 38 for (e = u->crontab; e != NULL; e = ne) { 39 ne = e->next; 40 free_entry(e); 41 } 42 free(u); 43 } 44 45 static void 46 log_error(msg) 47 char *msg; 48 { 49 log_it(User_name, getpid(), "PARSE", msg); 50 } 51 52 user * 53 load_user(crontab_fd, pw, name) 54 int crontab_fd; 55 struct passwd *pw; /* NULL implies syscrontab */ 56 char *name; 57 { 58 char envstr[MAX_ENVSTR]; 59 FILE *file; 60 user *u; 61 entry *e; 62 int status; 63 char **envp, **tenvp; 64 65 if (!(file = fdopen(crontab_fd, "r"))) { 66 warn("fdopen on crontab_fd in load_user"); 67 return NULL; 68 } 69 70 Debug(DPARS, ("load_user()\n")) 71 72 /* file is open. build user entry, then read the crontab file. 73 */ 74 if ((u = (user *) malloc(sizeof(user))) == NULL) { 75 errno = ENOMEM; 76 return NULL; 77 } 78 if ((u->name = strdup(name)) == NULL) { 79 free(u); 80 errno = ENOMEM; 81 return NULL; 82 } 83 u->crontab = NULL; 84 85 /* 86 * init environment. this will be copied/augmented for each entry. 87 */ 88 if ((envp = env_init()) == NULL) { 89 free(u->name); 90 free(u); 91 return NULL; 92 } 93 94 /* 95 * load the crontab 96 */ 97 while ((status = load_env(envstr, file)) >= OK) { 98 switch (status) { 99 case ERR: 100 free_user(u); 101 u = NULL; 102 goto done; 103 case FALSE: 104 User_name = u->name; /* for log_error */ 105 e = load_entry(file, log_error, pw, envp); 106 if (e) { 107 e->next = u->crontab; 108 u->crontab = e; 109 } 110 break; 111 case TRUE: 112 if ((tenvp = env_set(envp, envstr))) { 113 envp = tenvp; 114 } else { 115 free_user(u); 116 u = NULL; 117 goto done; 118 } 119 break; 120 } 121 } 122 123 done: 124 env_free(envp); 125 fclose(file); 126 Debug(DPARS, ("...load_user() done\n")) 127 return u; 128 } 129