diff options
Diffstat (limited to 'optionsfile.c')
| -rw-r--r-- | optionsfile.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/optionsfile.c b/optionsfile.c new file mode 100644 index 0000000..e9099a7 --- /dev/null +++ b/optionsfile.c @@ -0,0 +1,128 @@ +/* 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); +} |