diff options
Diffstat (limited to 'lib/hx509/env.c')
| -rw-r--r-- | lib/hx509/env.c | 238 | 
1 files changed, 161 insertions, 77 deletions
| diff --git a/lib/hx509/env.c b/lib/hx509/env.c index f868c22488cb..7598aebaae74 100644 --- a/lib/hx509/env.c +++ b/lib/hx509/env.c @@ -1,38 +1,37 @@  /* - * Copyright (c) 2007 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden).  - * All rights reserved.  - * - * Redistribution and use in source and binary forms, with or without  - * modification, are permitted provided that the following conditions  - * are met:  - * - * 1. Redistributions of source code must retain the above copyright  - *    notice, this list of conditions and the following disclaimer.  - * - * 2. Redistributions in binary form must reproduce the above copyright  - *    notice, this list of conditions and the following disclaimer in the  - *    documentation and/or other materials provided with the distribution.  - * - * 3. Neither the name of the Institute nor the names of its contributors  - *    may be used to endorse or promote products derived from this software  - *    without specific prior written permission.  - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND  - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  - * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE  - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL  - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS  - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT  - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY  - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF  - * SUCH DAMAGE.  + * Copyright (c) 2007 - 2008 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + *    notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + *    notice, this list of conditions and the following disclaimer in the + *    documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + *    may be used to endorse or promote products derived from this software + *    without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE.   */  #include "hx_locl.h" -RCSID("$Id: env.c 22349 2007-12-26 19:32:49Z lha $");  /**   * @page page_env Hx509 enviroment functions @@ -40,19 +39,13 @@ RCSID("$Id: env.c 22349 2007-12-26 19:32:49Z lha $");   * See the library functions here: @ref hx509_env   */ -struct hx509_env { -    struct { -	char *key; -	char *value; -    } *val; -    size_t len; -}; -  /** - * Allocate a new hx509_env container object. + * Add a new key/value pair to the hx509_env.   *   * @param context A hx509 context. - * @param env return a hx509_env structure, free with hx509_env_free(). + * @param env enviroment to add the enviroment variable too. + * @param key key to add + * @param value value to add   *   * @return An hx509 error code, see hx509_get_error_string().   * @@ -60,23 +53,50 @@ struct hx509_env {   */  int -hx509_env_init(hx509_context context, hx509_env *env) +hx509_env_add(hx509_context context, hx509_env *env, +	      const char *key, const char *value)  { -    *env = calloc(1, sizeof(**env)); -    if (*env == NULL) { +    hx509_env n; + +    n = malloc(sizeof(*n)); +    if (n == NULL) {  	hx509_set_error_string(context, 0, ENOMEM, "out of memory");  	return ENOMEM;      } + +    n->type = env_string; +    n->next = NULL; +    n->name = strdup(key); +    if (n->name == NULL) { +	free(n); +	return ENOMEM; +    } +    n->u.string = strdup(value); +    if (n->u.string == NULL) { +	free(n->name); +	free(n); +	return ENOMEM; +    } + +    /* add to tail */ +    if (*env) { +	hx509_env e = *env; +	while (e->next) +	    e = e->next; +	e->next = n; +    } else +	*env = n; +      return 0;  }  /** - * Add a new key/value pair to the hx509_env. + * Add a new key/binding pair to the hx509_env.   *   * @param context A hx509 context.   * @param env enviroment to add the enviroment variable too.   * @param key key to add - * @param value value to add + * @param list binding list to add   *   * @return An hx509 error code, see hx509_get_error_string().   * @@ -84,34 +104,41 @@ hx509_env_init(hx509_context context, hx509_env *env)   */  int -hx509_env_add(hx509_context context, hx509_env env,  -	      const char *key, const char *value) +hx509_env_add_binding(hx509_context context, hx509_env *env, +		      const char *key, hx509_env list)  { -    void *ptr; +    hx509_env n; -    ptr = realloc(env->val, sizeof(env->val[0]) * (env->len + 1)); -    if (ptr == NULL) { +    n = malloc(sizeof(*n)); +    if (n == NULL) {  	hx509_set_error_string(context, 0, ENOMEM, "out of memory");  	return ENOMEM;      } -    env->val = ptr; -    env->val[env->len].key = strdup(key); -    if (env->val[env->len].key == NULL) { -	hx509_set_error_string(context, 0, ENOMEM, "out of memory"); -	return ENOMEM; -    } -    env->val[env->len].value = strdup(value); -    if (env->val[env->len].value == NULL) { -	free(env->val[env->len].key); -	hx509_set_error_string(context, 0, ENOMEM, "out of memory"); + +    n->type = env_list; +    n->next = NULL; +    n->name = strdup(key); +    if (n->name == NULL) { +	free(n);  	return ENOMEM;      } -    env->len++; +    n->u.list = list; + +    /* add to tail */ +    if (*env) { +	hx509_env e = *env; +	while (e->next) +	    e = e->next; +	e->next = n; +    } else +	*env = n; +      return 0;  } +  /** - * Search the hx509_env for a key. + * Search the hx509_env for a length based key.   *   * @param context A hx509 context.   * @param env enviroment to add the enviroment variable too. @@ -127,17 +154,81 @@ const char *  hx509_env_lfind(hx509_context context, hx509_env env,  		const char *key, size_t len)  { -    size_t i; +    while(env) { +	if (strncmp(key, env->name ,len) == 0 +	    && env->name[len] == '\0' && env->type == env_string) +	    return env->u.string; +	env = env->next; +    } +    return NULL; +} -    for (i = 0; i < env->len; i++) { -	char *s = env->val[i].key; -	if (strncmp(key, s, len) == 0 && s[len] == '\0') -	    return env->val[i].value; +/** + * Search the hx509_env for a key. + * + * @param context A hx509 context. + * @param env enviroment to add the enviroment variable too. + * @param key key to search for. + * + * @return the value if the key is found, NULL otherwise. + * + * @ingroup hx509_env + */ + +const char * +hx509_env_find(hx509_context context, hx509_env env, const char *key) +{ +    while(env) { +	if (strcmp(key, env->name) == 0 && env->type == env_string) +	    return env->u.string; +	env = env->next;      }      return NULL;  }  /** + * Search the hx509_env for a binding. + * + * @param context A hx509 context. + * @param env enviroment to add the enviroment variable too. + * @param key key to search for. + * + * @return the binding if the key is found, NULL if not found. + * + * @ingroup hx509_env + */ + +hx509_env +hx509_env_find_binding(hx509_context context, +		       hx509_env env, +		       const char *key) +{ +    while(env) { +	if (strcmp(key, env->name) == 0 && env->type == env_list) +	    return env->u.list; +	env = env->next; +    } +    return NULL; +} + +static void +env_free(hx509_env b) +{ +    while(b) { +	hx509_env next = b->next; + +	if (b->type == env_string) +	    free(b->u.string); +	else if (b->type == env_list) +	    env_free(b->u.list); + +	free(b->name); +	free(b); +	b = next; +    } +} + +/**   * Free an hx509_env enviroment context.   *   * @param env the enviroment to free. @@ -148,14 +239,7 @@ hx509_env_lfind(hx509_context context, hx509_env env,  void  hx509_env_free(hx509_env *env)  { -    size_t i; - -    for (i = 0; i < (*env)->len; i++) { -	free((*env)->val[i].key); -	free((*env)->val[i].value); -    } -    free((*env)->val); -    free(*env); +    if (*env) +	env_free(*env);      *env = NULL;  } - | 
