172445Sassar/* 272445Sassar * Copyright (c) 2000 Kungliga Tekniska H�gskolan 372445Sassar * (Royal Institute of Technology, Stockholm, Sweden). 472445Sassar * All rights reserved. 572445Sassar * 672445Sassar * Redistribution and use in source and binary forms, with or without 772445Sassar * modification, are permitted provided that the following conditions 872445Sassar * are met: 972445Sassar * 1072445Sassar * 1. Redistributions of source code must retain the above copyright 1172445Sassar * notice, this list of conditions and the following disclaimer. 1272445Sassar * 1372445Sassar * 2. Redistributions in binary form must reproduce the above copyright 1472445Sassar * notice, this list of conditions and the following disclaimer in the 1572445Sassar * documentation and/or other materials provided with the distribution. 1672445Sassar * 1772445Sassar * 3. Neither the name of the Institute nor the names of its contributors 1872445Sassar * may be used to endorse or promote products derived from this software 1972445Sassar * without specific prior written permission. 2072445Sassar * 2172445Sassar * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 2272445Sassar * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2372445Sassar * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2472445Sassar * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 2572445Sassar * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2672445Sassar * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2772445Sassar * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2872445Sassar * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2972445Sassar * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3072445Sassar * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3172445Sassar * SUCH DAMAGE. 3272445Sassar */ 3372445Sassar 3472445Sassar#include "login_locl.h" 35178825SdfrRCSID("$Id: env.c 8476 2000-06-28 12:27:38Z joda $"); 3672445Sassar 3772445Sassar/* 3872445Sassar * the environment we will send to execle and the shell. 3972445Sassar */ 4072445Sassar 4172445Sassarchar **env; 4272445Sassarint num_env; 4372445Sassar 4472445Sassarvoid 4572445Sassarextend_env(char *str) 4672445Sassar{ 4772445Sassar env = realloc(env, (num_env + 1) * sizeof(*env)); 4872445Sassar if(env == NULL) 4972445Sassar errx(1, "Out of memory!"); 5072445Sassar env[num_env++] = str; 5172445Sassar} 5272445Sassar 5372445Sassarvoid 5472445Sassaradd_env(const char *var, const char *value) 5572445Sassar{ 5672445Sassar int i; 5772445Sassar char *str; 5872445Sassar asprintf(&str, "%s=%s", var, value); 5972445Sassar if(str == NULL) 6072445Sassar errx(1, "Out of memory!"); 6172445Sassar for(i = 0; i < num_env; i++) 6272445Sassar if(strncmp(env[i], var, strlen(var)) == 0 && 6372445Sassar env[i][strlen(var)] == '='){ 6472445Sassar free(env[i]); 6572445Sassar env[i] = str; 6672445Sassar return; 6772445Sassar } 6872445Sassar 6972445Sassar extend_env(str); 7072445Sassar} 7172445Sassar 7272445Sassarvoid 7372445Sassarcopy_env(void) 7472445Sassar{ 7572445Sassar char **p; 7672445Sassar for(p = environ; *p; p++) 7772445Sassar extend_env(*p); 7872445Sassar} 7972445Sassar 8072445Sassarint 8172445Sassarlogin_read_env(const char *file) 8272445Sassar{ 8372445Sassar char **newenv; 8472445Sassar char *p; 8572445Sassar int i, j; 8672445Sassar 8772445Sassar newenv = NULL; 8872445Sassar i = read_environment(file, &newenv); 8972445Sassar for (j = 0; j < i; j++) { 9072445Sassar p = strchr(newenv[j], '='); 9172445Sassar *p++ = 0; 9272445Sassar add_env(newenv[j], p); 9372445Sassar *--p = '='; 9472445Sassar free(newenv[j]); 9572445Sassar } 9672445Sassar free(newenv); 9772445Sassar return 0; 9872445Sassar} 99