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/* This file is part of pam-modules.
Copyright (C) 2008, 2010-2012, 2014 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>
char *
gray_env_get(struct gray_env *env, const char *name)
{
for (; env; env = env->next)
if (strcmp(env->name, name) == 0)
return env->value;
return NULL;
}
void
gray_env_free(struct gray_env *env)
{
while (env) {
struct gray_env *next = env->next;
free(env->name);
free(env);
env = next;
}
}
int
gray_env_read(const char *file_name, struct gray_env **penv)
{
FILE *fp;
char *p;
int rc = 0;
int line = 0;
char buf[128];
gray_slist_t slist = NULL;
struct gray_env *config_env = NULL;
fp = fopen(file_name, "r");
if (!fp) {
_pam_log(LOG_ERR, "cannot open configuration file `%s': %s",
file_name, strerror (errno));
return 1;
}
config_env = NULL;
while (p = fgets(buf, sizeof buf, fp)) {
int len;
struct gray_env *env;
line++;
while (*p && isspace(*p))
p++;
len = strlen(p);
if (len == 0)
continue;
if (p[len-1] != '\n') {
if (!slist)
slist = gray_slist_create();
gray_slist_append(slist, p, len);
while (p = fgets(buf, sizeof buf, fp)) {
len = strlen(p);
gray_slist_append(slist, p, len);
if (p[len - 1] == '\n')
break;
}
gray_slist_append_char(slist, 0);
p = gray_slist_finish(slist);
len = strlen(p);
}
p[len-1] = 0;
len = gray_trim_ws(p);
if (*p == 0 || *p == '#')
continue;
if (p[len-1] == '\\') {
int err = 0;
/* Collect continuation lines */
if (!slist)
slist = gray_slist_create();
do {
gray_slist_append(slist, p, len - 1);
p = fgets (buf, sizeof buf, fp);
if (!p)
break;
line++;
len = strlen(p);
if (len == 0)
break;
if (p[len-1] != '\n') {
_pam_log(LOG_EMERG,
"%s:%d: string too long",
file_name, line);
err = 1;
break;
}
p[len-1] = 0;
len = gray_trim_ws(p);
} while (p[len-1] == '\\');
if (len)
gray_slist_append(slist, p, len);
gray_slist_append_char(slist, 0);
p = gray_slist_finish(slist);
if (err)
continue;
}
env = malloc(sizeof *env);
if (!env) {
_pam_log(LOG_EMERG, "not enough memory");
rc = 1;
break;
}
env->name = strdup(p);
if (!env->name) {
_pam_log(LOG_EMERG, "not enough memory");
free(env);
rc = 1;
break;
}
for (p = env->name; *p && !isspace(*p); p++)
;
if (*p)
*p++ = 0;
for (; *p && isspace(*p); p++)
;
if (!*p) {
_pam_log(LOG_EMERG, "%s:%d: not enough fields",
file_name, line);
free(env->name);
free(env);
continue;
}
env->value = p;
env->next = config_env;
config_env = env;
}
gray_slist_free(&slist);
fclose(fp);
*penv = config_env;
return rc;
}
int
gray_boolean_true_p(const char *value)
{
return strcmp(value, "yes") == 0
|| strcmp(value, "true") == 0
|| strcmp(value, "t") == 0;
}
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