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[CTRACER]: 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 11:16:50 -03:00
parent 0f8e3423b5
commit b7cd0b6fdf
1 changed files with 66 additions and 46 deletions
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112
ctracer.c
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@ -7,7 +7,7 @@
published by the Free Software Foundation.
*/
#include <getopt.h>
#include <argp.h>
#include <limits.h>
#include <search.h>
#include <stdio.h>
@ -588,67 +588,87 @@ static void emit_module_preamble(void)
emit_function_defs("jprobe_return");
}
static struct option long_options[] = {
{ "dir", required_argument, NULL, 'D' },
{ "src_dir", required_argument, NULL, 'd' },
{ "glob", required_argument, NULL, 'g' },
{ "kprobes", required_argument, NULL, 'k' },
{ "recursive", no_argument, NULL, 'r' },
{ "help", no_argument, NULL, 'h' },
{ NULL, 0, NULL, 0, }
static const struct argp_option ctracer__options[] = {
{
.key = 'd',
.name = "src_dir",
.doc = "generate source files in this directory",
},
{
.key = 'D',
.name = "dir",
.doc = "load files in this directory",
},
{
.key = 'g',
.name = "glob",
.doc = "file mask to load",
},
{
.key = 'k',
.name = "kprobes",
.doc = "kprobes object file",
},
{
.key = 'r',
.name = "recursive",
.doc = "recursively load files",
},
{
.name = NULL,
}
};
static void usage(void)
static const char *dirname, *glob, *kprobes_filename;
static char *class_name;
static int recursive;
static error_t ctracer__options_parser(int key, char *arg,
struct argp_state *state __unused)
{
fprintf(stdout,
"usage: ctracer [options] <filename> <class_name>\n"
" where: \n"
" -d, --src_dir generate source files in this "
"directory\n"
" -D, --dir load files in this directory\n"
" -g, --glob file mask to load\n"
" -k, --kprobes kprobes object file\n"
" -r, --recursive recursively load files\n"
" -h, --help show this help message\n");
switch (key) {
case 'd': src_dir = arg; break;
case 'D': dirname = arg; break;
case 'g': glob = arg; break;
case 'k': kprobes_filename = arg; break;
case 'r': recursive = 1; break;
default: return ARGP_ERR_UNKNOWN;
}
return 0;
}
static const char ctracer__args_doc[] = "[FILE] [CLASS]";
static struct argp ctracer__argp = {
.options = ctracer__options,
.parser = ctracer__options_parser,
.args_doc = ctracer__args_doc,
};
int main(int argc, char *argv[])
{
int option, option_index, err, recursive = 0;
const char *filename = NULL, *dirname = NULL, *glob = NULL,
*kprobes_filename = NULL;
char *class_name = NULL;
int remaining, err;
struct tag *class;
struct cu *cu;
const char *filename;
char functions_filename[PATH_MAX];
char methods_filename[PATH_MAX];
FILE *fp;
while ((option = getopt_long(argc, argv, "d:D:g:k:rh",
long_options, &option_index)) >= 0)
switch (option) {
case 'd': src_dir = optarg; break;
case 'D': dirname = optarg; break;
case 'g': glob = optarg; break;
case 'k': kprobes_filename = optarg; break;
case 'r': recursive = 1; break;
case 'h': usage(); return EXIT_SUCCESS;
default: usage(); return EXIT_FAILURE;
}
argp_parse(&ctracer__argp, argc, argv, 0, &remaining, NULL);
if (optind < argc) {
switch (argc - optind) {
case 1: if (kprobes_filename == NULL) {
usage();
return EXIT_FAILURE;
}
class_name = argv[optind++]; break;
case 2: filename = argv[optind++];
class_name = argv[optind++]; break;
default: usage(); return EXIT_FAILURE;
if (remaining < argc) {
switch (argc - remaining) {
case 1: if (kprobes_filename == NULL)
goto failure;
class_name = argv[remaining++]; break;
case 2: filename = argv[remaining++];
class_name = argv[remaining++]; break;
default: goto failure;
}
} else {
usage();
failure:
argp_help(&ctracer__argp, stderr, ARGP_HELP_SEE, "ctracer");
return EXIT_FAILURE;
}