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[PGLOBAL]: Convert to argp 

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-03-30 11:33:17 -03:00
parent 0004a8ea7a
commit 950fbc7110
1 changed files with 47 additions and 30 deletions
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77
pglobal.c
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@ -7,12 +7,12 @@
*/
#define _GNU_SOURCE
#include <argp.h>
#include <malloc.h>
#include <search.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <unistd.h>
#include "dwarves.h"
@ -263,48 +263,65 @@ static void free_node(void *nodep)
free(*node);
}
static struct option long_options[] = {
{ "variables", no_argument, NULL, 'v' },
{ "functions", no_argument, NULL, 'f' },
{ "verbose", no_argument, NULL, 'V' },
{ NULL, 0, NULL, 0, }
static const struct argp_option pglobal__options[] = {
{
.key = 'v',
.name = "variables",
.doc = "show global variables",
},
{
.key = 'f',
.name = "functions",
.doc = "show global functions",
},
{
.key = 'V',
.name = "verbose",
.doc = "be verbose",
},
{
.name = NULL,
}
};
static void usage(void)
static int walk_var, walk_fun;
static error_t pglobal__options_parser(int key, char *arg __unused,
struct argp_state *state __unused)
{
fprintf(stdout,
"usage: pglobal [options] <filename>\n"
" where: \n"
" -v, --variables show global variables\n"
" -f, --functions show global functions\n"
" -V, --verbose be verbose\n"
" -h, --help show usage info\n");
switch (key) {
case 'v': walk_var = 1; break;
case 'f': walk_fun = 1; break;
case 'V': verbose = 1; break;
default: return ARGP_ERR_UNKNOWN;
}
return 0;
}
static const char pglobal__args_doc[] = "[FILE]";
static struct argp pglobal__argp = {
.options = pglobal__options,
.parser = pglobal__options_parser,
.args_doc = pglobal__args_doc,
};
int main(int argc, char *argv[])
{
int option, option_index, err;
int remaining, err;
char *filename;
struct cus *cus;
int walk_var = 0, walk_fun = 0;
while ((option = getopt_long(argc, argv, "vfVh",
long_options, &option_index)) >= 0)
switch (option) {
case 'v': walk_var = 1; break;
case 'f': walk_fun = 1; break;
case 'V': verbose = 1; break;
case 'h': usage(); return EXIT_SUCCESS;
default: usage(); return EXIT_SUCCESS;
}
argp_parse(&pglobal__argp, argc, argv, 0, &remaining, NULL);
if (optind < argc) {
switch (argc - optind) {
case 1: filename = argv[optind++]; break;
default: usage(); return EXIT_FAILURE;
if (remaining < argc) {
switch (argc - remaining) {
case 1: filename = argv[remaining++]; break;
goto failure;
}
} else {
usage();
failure:
argp_help(&pglobal__argp, stderr, ARGP_HELP_SEE, "pglobal");
return EXIT_FAILURE;
}