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109 lines
2.5 KiB
109 lines
2.5 KiB
2 months ago
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/*
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* UCW Library -- Configuration files: getopt wrapper
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*
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* (c) 2001--2006 Robert Spalek <robert@ucw.cz>
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* (c) 2003--2012 Martin Mares <mj@ucw.cz>
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*
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* This software may be freely distributed and used according to the terms
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* of the GNU Lesser General Public License.
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*/
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#include <ucw/lib.h>
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#include <ucw/conf.h>
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#include <ucw/conf-internal.h>
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#include <ucw/getopt.h>
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#include <ucw/fastbuf.h>
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#include <stdlib.h>
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#ifndef CONFIG_UCW_DEFAULT_CONFIG
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#define CONFIG_UCW_DEFAULT_CONFIG NULL
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#endif
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char *cf_def_file = CONFIG_UCW_DEFAULT_CONFIG;
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#ifndef CONFIG_UCW_ENV_VAR_CONFIG
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#define CONFIG_UCW_ENV_VAR_CONFIG NULL
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#endif
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char *cf_env_file = CONFIG_UCW_ENV_VAR_CONFIG;
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void
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cf_load_default(struct cf_context *cc)
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{
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if (cc->config_loaded++)
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return;
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if (cf_def_file)
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{
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char *env;
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if (cf_env_file && (env = getenv(cf_env_file)))
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{
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if (cf_load(env))
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die("Cannot load config file %s", env);
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}
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else if (cf_load(cf_def_file))
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die("Cannot load default config %s", cf_def_file);
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}
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else
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{
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// We need to create an empty pool and initialize all configuration items
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struct cf_journal_item *oldj = cf_journal_new_transaction(1);
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cf_init_stack(cc);
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cf_done_stack(cc);
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cf_journal_commit_transaction(1, oldj);
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}
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}
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static void
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end_of_options(struct cf_context *cc)
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{
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cf_load_default(cc);
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if (cc->postpone_commit && cf_close_group())
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die("Loading of configuration failed");
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}
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int
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cf_getopt(int argc, char *const argv[], const char *short_opts, const struct option *long_opts, int *long_index)
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{
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struct cf_context *cc = cf_get_context();
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if (!cc->postpone_commit)
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cf_open_group();
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while (1)
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{
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int res = getopt_long(argc, argv, short_opts, long_opts, long_index);
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if (res == 'S' || res == 'C' || res == 0x64436667)
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{
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if (cc->other_options)
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die("The -S and -C options must precede all other arguments");
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if (res == 'S')
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{
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cf_load_default(cc);
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if (cf_set(optarg))
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die("Cannot set %s", optarg);
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}
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else if (res == 'C')
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{
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if (cf_load(optarg))
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die("Cannot load config file %s", optarg);
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}
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#ifdef CONFIG_UCW_DEBUG
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else
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{ /* --dumpconfig */
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end_of_options(cc);
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struct fastbuf *b = bfdopen(1, 4096);
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cf_dump_sections(b);
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bclose(b);
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exit(0);
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}
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#endif
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}
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else
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{
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/* unhandled option or end of options */
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if (res != ':' && res != '?')
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end_of_options(cc);
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cc->other_options++;
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return res;
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}
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}
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}
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