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/*
* Copyright (c) 2000 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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
RCSID("$Id: environment.c,v 1.1 2000/06/21 02:05:03 assar Exp $");
#endif
#include <stdio.h>
#include <string.h>
#include "roken.h"
/*
* return count of environment assignments from `file' and
* list of malloced strings in `env'
*/
int
read_environment(const char *file, char ***env)
{
int i, k;
FILE *F;
char **l;
char buf[BUFSIZ], *p, *r;
if ((F = fopen(file, "r")) == NULL) {
return 0;
}
i = 0;
if (*env) {
l = *env;
while (*l != NULL) {
i++;
l++;
}
}
l = *env;
/* This is somewhat more relaxed on what it accepts then
* Wietses sysv_environ from K4 was...
*/
while (fgets(buf, BUFSIZ, F) != NULL) {
if (buf[0] == '#')
continue;
p = strchr(buf, '#');
if (p != NULL)
*p = '\0';
p = buf;
while (*p == ' ' || *p == '\t' || *p == '\n') p++;
if (*p == '\0')
continue;
k = strlen(p);
if (p[k-1] == '\n')
p[k-1] = '\0';
/* Here one should check that is is a 'valid' env string... */
r = strchr(p, '=');
if (r == NULL)
continue;
l = realloc(l, (i+1) * sizeof (char *));
l[i++] = strdup(p);
}
fclose(F);
l = realloc(l, (i+1) * sizeof (char *));
l[i] = NULL;
*env = l;
return i;
}
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