mirror of
git://git.gnu.org.ua/pam-modules.git
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1c2c05259a
(_cleanup_regex, make_str): New functions git-svn-id: file:///svnroot/pam-modules/trunk@43 56984be4-0537-0410-a56c-fcb268c96130
151 lines
3.8 KiB
C
151 lines
3.8 KiB
C
/* This file is part of pam-modules.
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Copyright (C) 2001, 2007 Sergey Poznyakoff
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301 USA */
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#ifndef PAM_CONV_AGAIN
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# define PAM_CONV_AGAIN PAM_TRY_AGAIN
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#endif
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#ifndef PAM_AUTHTOK_RECOVER_ERR
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# define PAM_AUTHTOK_RECOVER_ERR PAM_AUTHTOK_RECOVERY_ERR
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#endif
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#ifndef PAM_EXTERN
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# define PAM_EXTERN
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#endif
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#include <regex.h>
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#define XSTRDUP(s) (s) ? strdup(s) : NULL
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#define PAM_OVERWRITE(s) \
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do { \
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register char *p; \
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if ((p = s) != NULL) \
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while (*p) *p++ = 0; \
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} while (0)
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#define PAM_DROP_REPLY(reply, nrepl) \
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do { \
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int i; \
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for (i=0; i<nrepl; i++) { \
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PAM_OVERWRITE(reply[i].resp); \
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free(reply[i].resp); \
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} \
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if (reply) \
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free(reply); \
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} while (0)
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static void
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_pam_delete(char *x)
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{
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PAM_OVERWRITE(x);
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free(x);
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}
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static void
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_cleanup_string(pam_handle_t *pamh, void *x, int error_status)
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{
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_pam_delete(x);
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}
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static void
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_cleanup_regex(pam_handle_t *pamh, void *x, int error_status)
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{
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regfree((regex_t*)x);
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}
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static void _pam_log(int err, const char *format, ...);
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static void
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make_str(pam_handle_t *pamh, const char *str, const char *name, char **ret)
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{
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int retval;
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char *newstr = XSTRDUP(str);
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retval = pam_set_data(pamh, name, (void *)newstr, _cleanup_string);
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if (retval != PAM_SUCCESS) {
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_pam_log(LOG_CRIT,
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"can't keep data [%s]: %s",
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name,
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pam_strerror(pamh, retval));
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_pam_delete(newstr);
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} else {
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*ret = newstr;
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newstr = NULL;
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}
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}
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#define MAKE_STR(pamh, str, var) \
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make_str(pamh,str,#var,&var)
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/* Syslog functions */
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static int syslog_dont_open = 0;
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static const char *syslog_tag = MODULE_NAME;
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static int facility = LOG_AUTHPRIV;
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static void
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_pam_vlog(int err, const char *format, va_list args)
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{
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if (syslog_dont_open)
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err |= facility;
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else
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openlog(syslog_tag, LOG_CONS|LOG_PID, facility);
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vsyslog(err, format, args);
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if (!syslog_dont_open)
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closelog();
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}
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static void
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_pam_log(int err, const char *format, ...)
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{
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va_list args;
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va_start(args, format);
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_pam_vlog(err, format, args);
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va_end(args);
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}
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static void
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_pam_debug(const char *format, ...)
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{
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va_list args;
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va_start(args, format);
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_pam_vlog(LOG_DEBUG, format, args);
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va_end(args);
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}
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void
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wait_debug(size_t interval, const char *file, size_t line)
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{
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#ifdef DEBUG_MODE
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if (!interval)
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interval = 3600;
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_pam_log(LOG_CRIT, "WAITING FOR DEBUG AT %s:%d",
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file, (unsigned long)line);
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while (interval-- > 0)
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sleep();
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#else
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_pam_log(LOG_NOTICE, "Debugging is not configured");
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#endif
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}
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#define WAITDEBUG(arg) do { size_t line = __LINE__; \
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if ((arg)[0] == '=') \
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wait_debug(atoi((arg)+1), __FILE__, line); \
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else \
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wait_debug(0, __FILE__, line); \
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} while (0)
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