| 1 | #if !defined(lint) && !defined(LINT) |
| 2 | static char rcsid[] = "$Header: user.c,v 2.1 90/07/18 00:23:45 vixie Exp $"; |
| 3 | #endif |
| 4 | |
| 5 | /* vix 26jan87 [log is in RCS file] |
| 6 | */ |
| 7 | |
| 8 | /* Copyright 1988,1990 by Paul Vixie |
| 9 | * All rights reserved |
| 10 | * |
| 11 | * Distribute freely, except: don't remove my name from the source or |
| 12 | * documentation (don't take credit for my work), mark your changes (don't |
| 13 | * get me blamed for your possible bugs), don't alter or remove this |
| 14 | * notice. May be sold if buildable source is provided to buyer. No |
| 15 | * warrantee of any kind, express or implied, is included with this |
| 16 | * software; use at your own risk, responsibility for damages (if any) to |
| 17 | * anyone resulting from the use of this software rests entirely with the |
| 18 | * user. |
| 19 | * |
| 20 | * Send bug reports, bug fixes, enhancements, requests, flames, etc., and |
| 21 | * I'll try to keep a version up to date. I can be reached as follows: |
| 22 | * Paul Vixie, 329 Noe Street, San Francisco, CA, 94114, (415) 864-7013, |
| 23 | * paul@vixie.sf.ca.us || {hoptoad,pacbell,decwrl,crash}!vixie!paul |
| 24 | */ |
| 25 | |
| 26 | |
| 27 | #include "cron.h" |
| 28 | |
| 29 | |
| 30 | void |
| 31 | free_user(u) |
| 32 | user *u; |
| 33 | { |
| 34 | void free_entry(); |
| 35 | int free(); |
| 36 | entry *e; |
| 37 | char **env; |
| 38 | |
| 39 | for (e = u->crontab; e != NULL; e = e->next) |
| 40 | free_entry(e); |
| 41 | for (env = u->envp; *env; env++) |
| 42 | (void) free(*env); |
| 43 | (void) free(u->envp); |
| 44 | (void) free(u); |
| 45 | } |
| 46 | |
| 47 | |
| 48 | user * |
| 49 | load_user(crontab_fd, name, uid, gid, dir, shell) |
| 50 | int crontab_fd; |
| 51 | char *name; |
| 52 | int uid; |
| 53 | int gid; |
| 54 | char *dir; |
| 55 | char *shell; |
| 56 | { |
| 57 | char *malloc(), *sprintf(), **env_init(), **env_set(); |
| 58 | int load_env(); |
| 59 | entry *load_entry(); |
| 60 | |
| 61 | char envstr[MAX_ENVSTR]; |
| 62 | FILE *file; |
| 63 | user *u; |
| 64 | entry *e; |
| 65 | int status; |
| 66 | |
| 67 | if (!(file = fdopen(crontab_fd, "r"))) |
| 68 | { |
| 69 | perror("fdopen on crontab_fd in load_user"); |
| 70 | return NULL; |
| 71 | } |
| 72 | |
| 73 | Debug(DPARS, ("load_user()\n")) |
| 74 | |
| 75 | /* file is open. build user entry, then read the crontab file. |
| 76 | */ |
| 77 | u = (user *) malloc(sizeof(user)); |
| 78 | u->uid = uid; |
| 79 | u->gid = gid; |
| 80 | u->envp = env_init(); |
| 81 | u->crontab = NULL; |
| 82 | |
| 83 | /* |
| 84 | * do auto env settings that the user could reset in the cron tab |
| 85 | */ |
| 86 | sprintf(envstr, "SHELL=%s", (*shell) ?shell :"/bin/sh"); |
| 87 | u->envp = env_set(u->envp, envstr); |
| 88 | |
| 89 | sprintf(envstr, "HOME=%s", dir); |
| 90 | u->envp = env_set(u->envp, envstr); |
| 91 | |
| 92 | /* load the crontab |
| 93 | */ |
| 94 | while ((status = load_env(envstr, file)) >= OK) |
| 95 | { |
| 96 | if (status == TRUE) |
| 97 | { |
| 98 | u->envp = env_set(u->envp, envstr); |
| 99 | } |
| 100 | else |
| 101 | { |
| 102 | if (NULL != (e = load_entry(file, NULL))) |
| 103 | { |
| 104 | e->next = u->crontab; |
| 105 | u->crontab = e; |
| 106 | } |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | /* |
| 111 | * do automatic env settings that should have precedence over any |
| 112 | * set in the cron tab. |
| 113 | */ |
| 114 | (void) sprintf(envstr, "%s=%s", USERENV, name); |
| 115 | u->envp = env_set(u->envp, envstr); |
| 116 | |
| 117 | /* |
| 118 | * done. close file, return pointer to 'user' structure |
| 119 | */ |
| 120 | fclose(file); |
| 121 | |
| 122 | Debug(DPARS, ("...load_user() done\n")) |
| 123 | |
| 124 | return u; |
| 125 | } |