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/* This file is part of "reprepro"
* Copyright (C) 2005,2006 Bernhard R. Link
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include <config.h>
#include <errno.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include "error.h"
#include "names.h"
#include "optionsfile.h"
void optionsfile_parse(const char *directory, const struct option *longopts, void handle_option(int, const char *)) {
FILE *f;
char *filename;
char buffer[1000];
int linenr = 0;
const struct option *option;
filename = calc_dirconcat(directory, "options");
if (FAILEDTOALLOC(filename)) {
(void)fputs("Out of memory!\n", stderr);
exit(EXIT_FAILURE);
}
f = fopen(filename, "r");
if (f == NULL) {
free(filename);
return;
}
while (fgets(buffer, 999, f) != NULL) {
size_t l;
char *optionname, *argument;
linenr++;
l = strlen(buffer);
if (l == 0 || buffer[l-1] != '\n') {
fprintf(stderr,
"%s:%d: Ignoring too long (or incomplete) line.\n",
filename, linenr);
do {
if (fgets(buffer, 999, f) == NULL)
break;
l = strlen(buffer);
} while (l > 0 && buffer[l-1] != '\n');
continue;
}
do{
buffer[l-1] = '\0';
l--;
} while (l > 0 && xisspace(buffer[l-1]));
if (l == 0)
continue;
optionname = buffer;
while (*optionname != '\0' && xisspace(*optionname))
optionname++;
assert (*optionname != '\0');
if (*optionname == '#' || *optionname == ';')
continue;
argument = optionname;
while (*argument != '\0' && !xisspace(*argument))
argument++;
while (*argument != '\0' && xisspace(*argument)) {
*argument = '\0';
argument++;
}
if (*argument == '\0')
argument = NULL;
option = longopts;
while (option->name != NULL && strcmp(option->name, optionname) != 0)
option++;
if (option->name == NULL) {
fprintf(stderr, "%s:%d: unknown option '%s'!\n",
filename, linenr, optionname);
exit(EXIT_FAILURE);
}
if (option->has_arg==no_argument && argument != NULL) {
fprintf(stderr,
"%s:%d: option '%s' has an unexpected argument '%s'!\n",
filename, linenr, optionname, argument);
exit(EXIT_FAILURE);
}
if (option->has_arg==required_argument && argument == NULL) {
fprintf(stderr,
"%s:%d: option '%s' is missing an argument!\n",
filename, linenr, optionname);
exit(EXIT_FAILURE);
}
if (option->flag == NULL)
handle_option(option->val, argument);
else {
*option->flag = option->val;
handle_option(0, argument);
}
}
if (ferror(f) != 0) {
int e = ferror(f);
fprintf(stderr, "%s: error while reading config file: %d=%s\n",
filename, e, strerror(e));
exit(EXIT_FAILURE);
}
if (fclose(f) != 0) {
int e = errno;
fprintf(stderr, "%s: error while reading config file: %d=%s\n",
filename, e, strerror(e));
exit(EXIT_FAILURE);
}
free(filename);
}
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