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134 lines
2.5 KiB
C
134 lines
2.5 KiB
C
/* This file is part of pam-modules.
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Copyright (C) 2008, 2010-2012, 2014-2015, 2018 Sergey Poznyakoff
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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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 along
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with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <graypam.h>
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jmp_buf gray_pam_jmp;
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void
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gray_raise(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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_pam_vlog(LOG_ERR, fmt, ap);
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va_end(ap);
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longjmp(gray_pam_jmp, 1);
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}
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void *
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gray_malloc(size_t size)
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{
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void *p = malloc(size);
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if (!p)
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gray_raise("Not enough memory");
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return p;
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}
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void *
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gray_zalloc(size_t size)
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{
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void *p = malloc(size);
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if (!p)
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gray_raise("Not enough memory");
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memset(p, 0, size);
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return p;
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}
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void *
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gray_calloc(size_t count, size_t size)
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{
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return gray_zalloc(count * size);
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}
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void *
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gray_realloc(void *ptr, size_t size)
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{
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ptr = realloc(ptr, size);
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if (!ptr)
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gray_raise("Not enough memory");
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return ptr;
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}
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void *
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gray_2nrealloc(void *ptr, size_t *pcount, size_t elsiz)
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{
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size_t count = *pcount;
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if (!ptr) {
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if (!count)
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count = *pcount = 16;
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return gray_calloc(count, elsiz);
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}
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if ((size_t)-1 / 2 / elsiz <= count)
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gray_raise("Not enough memory");
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count *= 2;
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*pcount = count;
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return gray_realloc(ptr, count * elsiz);
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}
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char *
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gray_strdup(const char *str)
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{
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char *p;
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if (!str)
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return NULL;
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p = gray_malloc(strlen(str) + 1);
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return strcpy(p, str);
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}
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void
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gray_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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void
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gray_cleanup_string(pam_handle_t *pamh, void *x, int error_status)
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{
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gray_pam_delete(x);
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}
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void
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gray_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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void
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gray_make_str(pam_handle_t *pamh, const char *str, const char *name,
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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, gray_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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gray_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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