172445Sassar/* 2233294Sstas * Copyright (c) 2000 Kungliga Tekniska H��gskolan 3233294Sstas * (Royal Institute of Technology, Stockholm, Sweden). 4233294Sstas * All rights reserved. 572445Sassar * 6233294Sstas * Redistribution and use in source and binary forms, with or without 7233294Sstas * modification, are permitted provided that the following conditions 8233294Sstas * are met: 972445Sassar * 10233294Sstas * 1. Redistributions of source code must retain the above copyright 11233294Sstas * notice, this list of conditions and the following disclaimer. 1272445Sassar * 13233294Sstas * 2. Redistributions in binary form must reproduce the above copyright 14233294Sstas * notice, this list of conditions and the following disclaimer in the 15233294Sstas * documentation and/or other materials provided with the distribution. 1672445Sassar * 17233294Sstas * 3. Neither the name of the Institute nor the names of its contributors 18233294Sstas * may be used to endorse or promote products derived from this software 19233294Sstas * without specific prior written permission. 2072445Sassar * 21233294Sstas * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22233294Sstas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23233294Sstas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24233294Sstas * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25233294Sstas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26233294Sstas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27233294Sstas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28233294Sstas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29233294Sstas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30233294Sstas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31233294Sstas * SUCH DAMAGE. 3272445Sassar */ 3372445Sassar 3472445Sassar#include "login_locl.h" 35233294SstasRCSID("$Id$"); 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++) 62233294Sstas if(strncmp(env[i], var, strlen(var)) == 0 && 6372445Sassar env[i][strlen(var)] == '='){ 6472445Sassar free(env[i]); 6572445Sassar env[i] = str; 6672445Sassar return; 6772445Sassar } 68233294Sstas 6972445Sassar extend_env(str); 7072445Sassar} 7172445Sassar 72233294Sstas#if !HAVE_DECL_ENVIRON 73233294Sstasextern char **environ; 74233294Sstas#endif 75233294Sstas 76233294Sstas 7772445Sassarvoid 7872445Sassarcopy_env(void) 7972445Sassar{ 8072445Sassar char **p; 8172445Sassar for(p = environ; *p; p++) 8272445Sassar extend_env(*p); 8372445Sassar} 8472445Sassar 85233294Sstasvoid 8672445Sassarlogin_read_env(const char *file) 8772445Sassar{ 8872445Sassar char **newenv; 8972445Sassar char *p; 9072445Sassar int i, j; 91233294Sstas 9272445Sassar newenv = NULL; 9372445Sassar i = read_environment(file, &newenv); 9472445Sassar for (j = 0; j < i; j++) { 9572445Sassar p = strchr(newenv[j], '='); 96233294Sstas if (p == NULL) 97233294Sstas errx(1, "%s: missing = in string %s", 98233294Sstas file, newenv[j]); 9972445Sassar *p++ = 0; 10072445Sassar add_env(newenv[j], p); 10172445Sassar *--p = '='; 10272445Sassar free(newenv[j]); 10372445Sassar } 10472445Sassar free(newenv); 10572445Sassar} 106