ptp4l: Accept any configuration option as a command line argument.
This patch provides a way to use the entire table of configuration options as "long" command line switches. Signed-off-by: Richard Cochran <richardcochran@gmail.com>master
parent
891d56e429
commit
4e8dbd8492
64
config.c
64
config.c
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@ -329,6 +329,7 @@ static enum parser_result parse_section_line(char *s, enum config_section *secti
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}
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static enum parser_result parse_item(struct config *cfg,
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int commandline,
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const char *section,
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const char *option,
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const char *value)
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@ -387,7 +388,7 @@ static enum parser_result parse_item(struct config *cfg,
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return NOT_PARSED;
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}
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}
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} else if (cgi->flags & CFG_ITEM_LOCKED) {
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} else if (!commandline && cgi->flags & CFG_ITEM_LOCKED) {
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/* This global option was set on the command line. */
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return PARSED_OK;
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} else {
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@ -415,6 +416,10 @@ static enum parser_result parse_item(struct config *cfg,
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dst->flags |= CFG_ITEM_DYNSTR;
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break;
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}
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if (commandline) {
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dst->flags &= CFG_ITEM_LOCKED;
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}
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return PARSED_OK;
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}
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@ -490,6 +495,25 @@ static void check_deprecated_options(const char **option)
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}
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}
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static struct option *config_alloc_longopts(struct config *cfg)
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{
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struct config_item *ci;
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struct option *opts;
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int i;
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opts = calloc(1, (1 + N_CONFIG_ITEMS) * sizeof(*opts));
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if (!opts) {
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return NULL;
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}
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for (i = 0; i < N_CONFIG_ITEMS; i++) {
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ci = &config_tab[i];
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opts[i].name = ci->label;
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opts[i].has_arg = required_argument;
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}
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return opts;
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}
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int config_read(char *name, struct config *cfg)
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{
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enum config_section current_section = UNKNOWN_SECTION;
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@ -554,7 +578,7 @@ int config_read(char *name, struct config *cfg)
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check_deprecated_options(&option);
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parser_res = parse_item(cfg, current_section == GLOBAL_SECTION ?
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parser_res = parse_item(cfg, 0, current_section == GLOBAL_SECTION ?
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NULL : current_port->name, option, value);
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switch (parser_res) {
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@ -627,8 +651,15 @@ struct config *config_create(void)
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}
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STAILQ_INIT(&cfg->interfaces);
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cfg->opts = config_alloc_longopts(cfg);
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if (!cfg->opts) {
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free(cfg);
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return NULL;
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}
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cfg->htab = hash_create();
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if (!cfg->htab) {
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free(cfg->opts);
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free(cfg);
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return NULL;
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}
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@ -657,6 +688,7 @@ struct config *config_create(void)
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return cfg;
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fail:
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hash_destroy(cfg->htab, NULL);
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free(cfg->opts);
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free(cfg);
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return NULL;
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}
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@ -670,6 +702,7 @@ void config_destroy(struct config *cfg)
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free(iface);
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}
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hash_destroy(cfg->htab, config_item_free);
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free(cfg->opts);
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free(cfg);
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}
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@ -720,6 +753,33 @@ char *config_get_string(struct config *cfg, const char *section,
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return ci->val.s;
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}
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int config_parse_option(struct config *cfg, const char *opt, const char *val)
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{
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enum parser_result result;
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result = parse_item(cfg, 1, NULL, opt, val);
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switch (result) {
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case PARSED_OK:
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return 0;
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case NOT_PARSED:
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fprintf(stderr, "unknown option %s\n", opt);
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break;
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case BAD_VALUE:
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fprintf(stderr, "%s is a bad value for option %s\n", val, opt);
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break;
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case MALFORMED:
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fprintf(stderr, "%s is a malformed value for option %s\n",
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val, opt);
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break;
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case OUT_OF_RANGE:
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fprintf(stderr, "%s is an out of range value for option %s\n",
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val, opt);
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break;
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}
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return -1;
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}
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int config_set_double(struct config *cfg, const char *option, double val)
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{
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struct config_item *ci = config_find_item(cfg, NULL, option);
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11
config.h
11
config.h
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@ -20,6 +20,7 @@
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#ifndef HAVE_CONFIG_H
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#define HAVE_CONFIG_H
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#include <getopt.h>
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#include <sys/queue.h>
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#include "ds.h"
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@ -43,6 +44,9 @@ struct config {
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STAILQ_HEAD(interfaces_head, interface) interfaces;
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int n_interfaces;
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/* for parsing command line options */
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struct option *opts;
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/* hash of all non-legacy items */
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struct hash *htab;
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};
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@ -64,6 +68,13 @@ int config_get_int(struct config *cfg, const char *section,
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char *config_get_string(struct config *cfg, const char *section,
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const char *option);
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static inline struct option *config_long_options(struct config *cfg)
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{
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return cfg->opts;
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}
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int config_parse_option(struct config *cfg, const char *opt, const char *val);
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int config_set_double(struct config *cfg, const char *option, double val);
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int config_set_section_int(struct config *cfg, const char *section,
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11
ptp4l.c
11
ptp4l.c
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@ -73,8 +73,9 @@ static void usage(char *progname)
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int main(int argc, char *argv[])
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{
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char *config = NULL, *req_phc = NULL, *progname;
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int c, err = -1, print_level;
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int c, err = -1, index, print_level;
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struct clock *clock = NULL;
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struct option *opts;
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struct config *cfg;
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if (handle_term_signals())
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@ -84,12 +85,18 @@ int main(int argc, char *argv[])
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if (!cfg) {
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return -1;
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}
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opts = config_long_options(cfg);
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/* Process the command line arguments. */
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progname = strrchr(argv[0], '/');
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progname = progname ? 1+progname : argv[0];
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while (EOF != (c = getopt(argc, argv, "AEP246HSLf:i:p:sl:mqvh"))) {
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while (EOF != (c = getopt_long(argc, argv, "AEP246HSLf:i:p:sl:mqvh",
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opts, &index))) {
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switch (c) {
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case 0:
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if (config_parse_option(cfg, opts[index].name, optarg))
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goto out;
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break;
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case 'A':
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if (config_set_int(cfg, "delay_mechanism", DM_AUTO))
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goto out;
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