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/* This file is part of pam-modules.
Copyright (C) 2008, 2010-2012, 2014-2015 Sergey Poznyakoff
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <graypam.h>
jmp_buf gray_pam_jmp;
void
gray_raise(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
_pam_vlog(LOG_ERR, fmt, ap);
va_end(ap);
longjmp(gray_pam_jmp, 1);
}
void *
gray_malloc(size_t size)
{
void *p = malloc(size);
if (!p)
gray_raise("Not enough memory");
return p;
}
void *
gray_zalloc(size_t size)
{
void *p = malloc(size);
if (!p)
gray_raise("Not enough memory");
memset(p, 0, size);
return p;
}
void *
gray_calloc(size_t count, size_t size)
{
return gray_zalloc(count * size);
}
void *
gray_realloc(void *ptr, size_t size)
{
ptr = realloc(ptr, size);
if (!ptr)
gray_raise("Not enough memory");
return ptr;
}
void *
gray_2nrealloc(void *ptr, size_t *pcount, size_t elsiz)
{
size_t count = *pcount;
if (!ptr) {
if (!count)
count = *pcount = 16;
return gray_calloc(count, elsiz);
}
if ((size_t)-1 / 2 / elsiz <= count)
gray_raise("Not enough memory");
count *= 2;
*pcount = count;
return gray_realloc(ptr, count * elsiz);
}
char *
gray_strdup(const char *str)
{
char *p;
if (!str)
return NULL;
p = gray_malloc(strlen(str) + 1);
return strcpy(p, str);
}
void
gray_pam_delete(char *x)
{
PAM_OVERWRITE(x);
free(x);
}
void
gray_cleanup_string(pam_handle_t *pamh, void *x, int error_status)
{
gray_pam_delete(x);
}
void
gray_cleanup_regex(pam_handle_t *pamh, void *x, int error_status)
{
regfree((regex_t*)x);
}
void
gray_make_str(pam_handle_t *pamh, const char *str, const char *name,
char **ret)
{
int retval;
char *newstr = XSTRDUP(str);
retval = pam_set_data(pamh, name, (void *)newstr, gray_cleanup_string);
if (retval != PAM_SUCCESS) {
_pam_log(LOG_CRIT,
"can't keep data [%s]: %s",
name,
pam_strerror(pamh, retval));
gray_pam_delete(newstr);
} else {
*ret = newstr;
newstr = NULL;
}
}
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