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author | Sascha Hauer <s.hauer@pengutronix.de> | 2013-09-26 14:58:18 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-09-27 16:24:37 +0200 |
commit | 0b342aca51ae90358ad31690473b294025774135 (patch) | |
tree | 2fdd56579fbab8825ecc3e7a4d2e3b29742762b1 /scripts/omap_signGP.c | |
parent | 41dd510b5cc8c697791b4d27a943617e96993997 (diff) | |
download | barebox-0b342aca51ae90358ad31690473b294025774135.tar.gz barebox-0b342aca51ae90358ad31690473b294025774135.tar.xz |
scripts/omap_signGP: add getopt
Instead of using positional arguments add proper getopt support.
This also adds a help text.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'scripts/omap_signGP.c')
-rw-r--r-- | scripts/omap_signGP.c | 59 |
1 files changed, 43 insertions, 16 deletions
diff --git a/scripts/omap_signGP.c b/scripts/omap_signGP.c index 633bcf5f85..482cfac925 100644 --- a/scripts/omap_signGP.c +++ b/scripts/omap_signGP.c @@ -25,6 +25,7 @@ #include <sys/stat.h> #include <string.h> #include <malloc.h> +#include <getopt.h> #include <linux/types.h> #undef CH_WITH_CHRAM @@ -233,6 +234,18 @@ static struct ch_chsettings_nochram config_header }; #endif +static void usage(const char *prgname) +{ + fprintf(stderr, +"usage: %s [OPTIONS] <infile>\n" +"\n" +"Options:\n" +"-o <outfile> output to <outfile>\n" +"-l <loadaddr> specify load address\n" +"-c Add config header\n" +"-h This help\n" + , prgname); +} #define err(...) do { int save_errno = errno; \ fprintf(stderr, __VA_ARGS__); \ @@ -243,29 +256,43 @@ static struct ch_chsettings_nochram config_header int main(int argc, char *argv[]) { int i; - char ifname[FILENAME_MAX], ofname[FILENAME_MAX], ch; + char *ifname, *ofname = NULL, ch; FILE *ifile, *ofile; - unsigned long loadaddr, len; + unsigned long loadaddr = ~0, len; struct stat sinfo; int ch_add = 0; + int opt; + while ((opt = getopt(argc, argv, "o:hl:c")) != -1) { + switch (opt) { + case 'h': + usage(argv[0]); + exit(0); + case 'o': + ofname = optarg; + break; + case 'l': + loadaddr = strtoul(optarg, NULL, 0); + break; + case 'c': + ch_add = 1; + break; + default: + exit(1); + } + } - /* Default to x-load.bin and 0x40200800. */ - strcpy(ifname, "x-load.bin"); - loadaddr = 0x40200800; - - if ((argc == 2) || (argc == 3) || (argc == 4)) - strcpy(ifname, argv[1]); - - if ((argc == 3) || (argc == 4)) - loadaddr = strtoul(argv[2], NULL, 16); + if (loadaddr == ~0) { + fprintf(stderr, "no loadaddr given\n"); + exit(1); + } - if (argc == 4) - ch_add = strtoul(argv[3], NULL, 16); + if (optind == argc || !ofname) { + usage(argv[0]); + exit(1); + } - /* Form the output file name. */ - strcpy(ofname, ifname); - strcat(ofname, ".ift"); + ifname = argv[optind]; /* Open the input file. */ ifile = fopen(ifname, "rb"); |