1178825Sdfr/* 2178825Sdfr * Copyright (c) 2007 Kungliga Tekniska H�gskolan 3178825Sdfr * (Royal Institute of Technology, Stockholm, Sweden). 4178825Sdfr * All rights reserved. 5178825Sdfr * 6178825Sdfr * Redistribution and use in source and binary forms, with or without 7178825Sdfr * modification, are permitted provided that the following conditions 8178825Sdfr * are met: 9178825Sdfr * 10178825Sdfr * 1. Redistributions of source code must retain the above copyright 11178825Sdfr * notice, this list of conditions and the following disclaimer. 12178825Sdfr * 13178825Sdfr * 2. Redistributions in binary form must reproduce the above copyright 14178825Sdfr * notice, this list of conditions and the following disclaimer in the 15178825Sdfr * documentation and/or other materials provided with the distribution. 16178825Sdfr * 17178825Sdfr * 3. Neither the name of the Institute nor the names of its contributors 18178825Sdfr * may be used to endorse or promote products derived from this software 19178825Sdfr * without specific prior written permission. 20178825Sdfr * 21178825Sdfr * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22178825Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23178825Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24178825Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25178825Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26178825Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27178825Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28178825Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29178825Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30178825Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31178825Sdfr * SUCH DAMAGE. 32178825Sdfr */ 33178825Sdfr 34178825Sdfr#include "hx_locl.h" 35178825SdfrRCSID("$Id: env.c 22349 2007-12-26 19:32:49Z lha $"); 36178825Sdfr 37178825Sdfr/** 38178825Sdfr * @page page_env Hx509 enviroment functions 39178825Sdfr * 40178825Sdfr * See the library functions here: @ref hx509_env 41178825Sdfr */ 42178825Sdfr 43178825Sdfrstruct hx509_env { 44178825Sdfr struct { 45178825Sdfr char *key; 46178825Sdfr char *value; 47178825Sdfr } *val; 48178825Sdfr size_t len; 49178825Sdfr}; 50178825Sdfr 51178825Sdfr/** 52178825Sdfr * Allocate a new hx509_env container object. 53178825Sdfr * 54178825Sdfr * @param context A hx509 context. 55178825Sdfr * @param env return a hx509_env structure, free with hx509_env_free(). 56178825Sdfr * 57178825Sdfr * @return An hx509 error code, see hx509_get_error_string(). 58178825Sdfr * 59178825Sdfr * @ingroup hx509_env 60178825Sdfr */ 61178825Sdfr 62178825Sdfrint 63178825Sdfrhx509_env_init(hx509_context context, hx509_env *env) 64178825Sdfr{ 65178825Sdfr *env = calloc(1, sizeof(**env)); 66178825Sdfr if (*env == NULL) { 67178825Sdfr hx509_set_error_string(context, 0, ENOMEM, "out of memory"); 68178825Sdfr return ENOMEM; 69178825Sdfr } 70178825Sdfr return 0; 71178825Sdfr} 72178825Sdfr 73178825Sdfr/** 74178825Sdfr * Add a new key/value pair to the hx509_env. 75178825Sdfr * 76178825Sdfr * @param context A hx509 context. 77178825Sdfr * @param env enviroment to add the enviroment variable too. 78178825Sdfr * @param key key to add 79178825Sdfr * @param value value to add 80178825Sdfr * 81178825Sdfr * @return An hx509 error code, see hx509_get_error_string(). 82178825Sdfr * 83178825Sdfr * @ingroup hx509_env 84178825Sdfr */ 85178825Sdfr 86178825Sdfrint 87178825Sdfrhx509_env_add(hx509_context context, hx509_env env, 88178825Sdfr const char *key, const char *value) 89178825Sdfr{ 90178825Sdfr void *ptr; 91178825Sdfr 92178825Sdfr ptr = realloc(env->val, sizeof(env->val[0]) * (env->len + 1)); 93178825Sdfr if (ptr == NULL) { 94178825Sdfr hx509_set_error_string(context, 0, ENOMEM, "out of memory"); 95178825Sdfr return ENOMEM; 96178825Sdfr } 97178825Sdfr env->val = ptr; 98178825Sdfr env->val[env->len].key = strdup(key); 99178825Sdfr if (env->val[env->len].key == NULL) { 100178825Sdfr hx509_set_error_string(context, 0, ENOMEM, "out of memory"); 101178825Sdfr return ENOMEM; 102178825Sdfr } 103178825Sdfr env->val[env->len].value = strdup(value); 104178825Sdfr if (env->val[env->len].value == NULL) { 105178825Sdfr free(env->val[env->len].key); 106178825Sdfr hx509_set_error_string(context, 0, ENOMEM, "out of memory"); 107178825Sdfr return ENOMEM; 108178825Sdfr } 109178825Sdfr env->len++; 110178825Sdfr return 0; 111178825Sdfr} 112178825Sdfr 113178825Sdfr/** 114178825Sdfr * Search the hx509_env for a key. 115178825Sdfr * 116178825Sdfr * @param context A hx509 context. 117178825Sdfr * @param env enviroment to add the enviroment variable too. 118178825Sdfr * @param key key to search for. 119178825Sdfr * @param len length of key. 120178825Sdfr * 121178825Sdfr * @return the value if the key is found, NULL otherwise. 122178825Sdfr * 123178825Sdfr * @ingroup hx509_env 124178825Sdfr */ 125178825Sdfr 126178825Sdfrconst char * 127178825Sdfrhx509_env_lfind(hx509_context context, hx509_env env, 128178825Sdfr const char *key, size_t len) 129178825Sdfr{ 130178825Sdfr size_t i; 131178825Sdfr 132178825Sdfr for (i = 0; i < env->len; i++) { 133178825Sdfr char *s = env->val[i].key; 134178825Sdfr if (strncmp(key, s, len) == 0 && s[len] == '\0') 135178825Sdfr return env->val[i].value; 136178825Sdfr } 137178825Sdfr return NULL; 138178825Sdfr} 139178825Sdfr 140178825Sdfr/** 141178825Sdfr * Free an hx509_env enviroment context. 142178825Sdfr * 143178825Sdfr * @param env the enviroment to free. 144178825Sdfr * 145178825Sdfr * @ingroup hx509_env 146178825Sdfr */ 147178825Sdfr 148178825Sdfrvoid 149178825Sdfrhx509_env_free(hx509_env *env) 150178825Sdfr{ 151178825Sdfr size_t i; 152178825Sdfr 153178825Sdfr for (i = 0; i < (*env)->len; i++) { 154178825Sdfr free((*env)->val[i].key); 155178825Sdfr free((*env)->val[i].value); 156178825Sdfr } 157178825Sdfr free((*env)->val); 158178825Sdfr free(*env); 159178825Sdfr *env = NULL; 160178825Sdfr} 161178825Sdfr 162