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authorJosh Boyer <jwboyer@linux.ibm.com>2006-12-11 14:34:22 +0100
committerFrank Haverkamp <haver@vnet.ibm.com>2006-12-11 14:34:22 +0100
commit371c7834a0ed0189b0489e194788fb1ee15eab33 (patch)
treec43ac6b1ca87c966974db785a58c0b8a10737bd7 /ubi-utils
parent0fc595749f057629a3af9506ca0447e6230c0962 (diff)
[PATCH 2/13] Convert mkbootenv to use getopt option parsing
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Frank Haverkamp <haver@vnet.ibm.com>
Diffstat (limited to 'ubi-utils')
-rw-r--r--ubi-utils/src/mkbootenv.c132
1 files changed, 63 insertions, 69 deletions
diff --git a/ubi-utils/src/mkbootenv.c b/ubi-utils/src/mkbootenv.c
index 49ce597..a556939 100644
--- a/ubi-utils/src/mkbootenv.c
+++ b/ubi-utils/src/mkbootenv.c
@@ -24,7 +24,6 @@
#include <stdint.h>
#include <stdlib.h>
#include <getopt.h>
-#include <argp.h>
#include <unistd.h>
#include <errno.h>
#include <mtd/ubi-header.h>
@@ -33,8 +32,9 @@
#include "bootenv.h"
#include "error.h"
-const char *argp_program_version = PACKAGE_VERSION;
-const char *argp_program_bug_address = PACKAGE_BUGREPORT;
+extern char *optarg;
+extern int optind;
+
static char doc[] = "\nVersion: " PACKAGE_VERSION "\n\tBuilt on "
BUILD_CPU" "BUILD_OS" at "__DATE__" "__TIME__"\n"
"\n"
@@ -44,25 +44,25 @@ static char doc[] = "\nVersion: " PACKAGE_VERSION "\n\tBuilt on "
static const char copyright [] __attribute__((unused)) =
"Copyright (c) International Business Machines Corp., 2006";
-static struct argp_option options[] = {
- { .name = "copyright",
- .key = 'c',
- .arg = NULL,
- .flags = 0,
- .doc = "Print copyright information.",
- .group = 1 },
- { .name = "output",
- .key = 'o',
- .arg = "<output>",
- .flags = 0,
- .doc = "Write the the output data to <output> instead of stdout.",
- .group = 1 },
- { .name = NULL,
- .key = 0,
- .arg = NULL,
- .flags = 0,
- .doc = NULL,
- .group = 0 },
+static const char *optionsstr =
+" -c, --copyright Print copyright informatoin.\n"
+" -o, --output=<fname> Write the output data to <output> instead of\n"
+" stdout.\n"
+" -?, --help Give this help list\n"
+" --usage Give a short usage message\n"
+" -V, --version Print program version\n";
+
+static const char *usage =
+"Usage: mkbootenv [-c?V] [-o <output>] [--copyright] [--output=<output>]\n"
+" [--help] [--usage] [--version] [bootenv-txt-file]\n";
+
+struct option long_options[] = {
+ { .name = "copyright", .has_arg = 0, .flag = NULL, .val = 'c' },
+ { .name = "output", .has_arg = 1, .flag = NULL, .val = 'o' },
+ { .name = "help", .has_arg = 0, .flag = NULL, .val = '?' },
+ { .name = "usage", .has_arg = 0, .flag = NULL, .val = 0 },
+ { .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
+ { NULL, 0, NULL, 0}
};
typedef struct myargs {
@@ -73,63 +73,57 @@ typedef struct myargs {
char **options; /* [STRING...] */
} myargs;
-
-
-static error_t
-parse_opt(int key, char *arg, struct argp_state *state)
+static int
+parse_opt(int argc, char **argv, myargs *args)
{
- int err = 0;
-
- myargs *args = state->input;
-
- switch (key) {
- case 'c':
- fprintf(stderr, "%s\n", copyright);
- exit(0);
- break;
- case 'o':
- args->fp_out = fopen(arg, "wb");
- if ((args->fp_out) == NULL) {
- fprintf(stderr,
- "Cannot open file %s for output\n", arg);
- exit(1);
+ while (1) {
+ int key;
+
+ key = getopt_long(argc, argv, "co:?V", long_options, NULL);
+ if (key == -1)
+ break;
+
+ switch (key) {
+ case 'c':
+ fprintf(stderr, "%s\n", copyright);
+ exit(0);
+ break;
+ case 'o':
+ args->fp_out = fopen(optarg, "wb");
+ if ((args->fp_out) == NULL) {
+ fprintf(stderr,
+ "Cannot open file %s for output\n", optarg);
+ exit(1);
+ }
+ break;
+ case '?': /* help */
+ printf("%s", doc);
+ printf("%s", optionsstr);
+ printf("\nReport bugs to %s\n", PACKAGE_BUGREPORT);
+ exit(0);
+ break;
+ case 'V':
+ printf("%s\n", PACKAGE_VERSION);
+ exit(0);
+ break;
+ default:
+ printf("%s", usage);
+ exit(-1);
}
- break;
- case ARGP_KEY_ARG:
- args->fp_in = fopen(arg, "rb");
+ }
+
+ if (optind < argc) {
+ args->fp_in = fopen(argv[optind++], "rb");
if ((args->fp_in) == NULL) {
fprintf(stderr,
- "Cannot open file %s for input\n", arg);
- exit(1);
- }
- args->arg1 = arg;
- args->options = &state->argv[state->next];
- state->next = state->argc;
- break;
- case ARGP_KEY_END:
- if (err) {
- fprintf(stderr, "\n");
- argp_usage(state);
+ "Cannot open file %s for input\n", argv[optind]);
exit(1);
}
- break;
- default:
- return(ARGP_ERR_UNKNOWN);
}
return 0;
}
-static struct argp argp = {
- .options = options,
- .parser = parse_opt,
- .args_doc = "[bootenv-txt-file]",
- .doc = doc,
- .children = NULL,
- .help_filter = NULL,
- .argp_domain = NULL,
-};
-
int
main(int argc, char **argv) {
int rc = 0;
@@ -142,7 +136,7 @@ main(int argc, char **argv) {
.options = NULL,
};
- argp_parse(&argp, argc, argv, ARGP_IN_ORDER, 0, &args);
+ parse_opt(argc, argv, &args);
rc = bootenv_create(&env);
if (rc != 0) {