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/*
* $Id: env.c,v 1.6 2007/06/21 18:07:23 cparker Exp $
*
* Copyright (C) 1995,1996,1997 Lars Fenneberg
*
* See the file COPYRIGHT for the respective terms and conditions.
* If the file is missing contact me at lf@elemental.net
* and I'll send you a copy.
*
*/
#include <config.h>
#include <includes.h>
#include <freeradius-client.h>
/*
* Function: rc_new_env
*
* Purpose: allocate space for a new environment
*
*/
ENV *rc_new_env(int size)
{
ENV *p;
if (size < 1)
return NULL;
if ((p = malloc(sizeof(*p))) == NULL)
return NULL;
if ((p->env = malloc(size * sizeof(char *))) == NULL)
{
rc_log(LOG_CRIT, "rc_new_env: out of memory");
free(p);
return NULL;
}
p->env[0] = NULL;
p->size = 0;
p->maxsize = size;
return p;
}
/*
* Function: rc_free_env
*
* Purpose: free the space used by an env structure
*
*/
void rc_free_env(ENV *env)
{
free(env->env);
free(env);
}
/*
* Function: rc_add_env
*
* Purpose: add an environment entry
*
*/
int rc_add_env(ENV *env, char *name, char *value)
{
int i;
char *new_env;
for (i = 0; env->env[i] != NULL; i++)
{
if (strncmp(env->env[i], name, MAX(strchr(env->env[i], '=') - env->env[i], (int)strlen(name))) == 0)
break;
}
if (env->env[i])
{
if ((new_env = realloc(env->env[i], strlen(name)+strlen(value)+2)) == NULL)
return -1;
env->env[i] = new_env;
sprintf(env->env[i],"%s=%s", name, value);
} else {
if (env->size == (env->maxsize-1)) {
rc_log(LOG_CRIT, "rc_add_env: not enough space for environment (increase ENV_SIZE)");
return -1;
}
if ((env->env[env->size] = malloc(strlen(name)+strlen(value)+2)) == NULL) {
rc_log(LOG_CRIT, "rc_add_env: out of memory");
return -1;
}
sprintf(env->env[env->size],"%s=%s", name, value);
env->size++;
env->env[env->size] = NULL;
}
return 0;
}
/*
* Function: rc_import_env
*
* Purpose: imports an array of null-terminated strings
*
*/
int rc_import_env(ENV *env, char **import)
{
char *es;
while (*import)
{
es = strchr(*import, '=');
if (!es)
{
import++;
continue;
}
/* ok, i grant thats not very clean... */
*es = '\0';
if (rc_add_env(env, *import, es+1) < 0)
{
*es = '=';
return -1;
}
*es = '=';
import++;
}
return 0;
}
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