From 12b831879a765722c1a94ca75c6adb6f80759cd9 Mon Sep 17 00:00:00 2001 From: Martyn Welch Date: Sat, 26 Jan 2019 02:31:51 +0000 Subject: tools: dumpimage: Simplify arguments The dump image utility has very confusing syntax. If called to list image contents ("-l") it takes the image name as a positional argument. If the utility is called to extract something from the image, the image must be provided via the optional argument "-i" as well as the positional argument but the value passed in the positional argument will be completely ignored. Simplify dumpimage by always providing the image as the first positional argument. Assume we want to dump something from the image if we do not provide the "-l" option for now. Signed-off-by: Martyn Welch --- tools/dumpimage.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/tools/dumpimage.c b/tools/dumpimage.c index 2847e6c..1b92dec 100644 --- a/tools/dumpimage.c +++ b/tools/dumpimage.c @@ -65,17 +65,14 @@ int main(int argc, char **argv) params.cmdname = *argv; - while ((opt = getopt(argc, argv, "li:o:T:p:V")) != -1) { + while ((opt = getopt(argc, argv, "lo:T:p:V")) != -1) { switch (opt) { case 'l': params.lflag = 1; break; - case 'i': - params.imagefile = optarg; - params.iflag = 1; - break; case 'o': params.outfile = optarg; + params.iflag = 1; break; case 'T': params.type = genimg_get_type_id(optarg); @@ -108,6 +105,8 @@ int main(int argc, char **argv) usage(); } + params.imagefile = argv[optind]; + /* set tparams as per input type_id */ tparams = imagetool_get_type(params.type); if (tparams == NULL) { @@ -128,12 +127,11 @@ int main(int argc, char **argv) } } - if (params.iflag) - params.datafile = argv[optind]; - else - params.imagefile = argv[optind]; - if (!params.outfile) - params.outfile = params.datafile; + if (!params.lflag && !params.outfile) { + fprintf(stderr, "%s: No output file provided\n", + params.cmdname); + exit(EXIT_FAILURE); + } ifd = open(params.imagefile, O_RDONLY|O_BINARY); if (ifd < 0) { @@ -204,10 +202,9 @@ static void usage(void) " -l ==> list image header information\n", params.cmdname); fprintf(stderr, - " %s -i image -T type [-p position] [-o outfile] data_file\n" - " -i ==> extract from the 'image' a specific 'data_file'\n" + " %s -T type [-p position] [-o outfile] image\n" " -T ==> set image type to 'type'\n" - " -p ==> 'position' (starting at 0) of the 'data_file' inside the 'image'\n", + " -p ==> 'position' (starting at 0) of the component to extract from image\n", params.cmdname); fprintf(stderr, " %s -V ==> print version information and exit\n", -- cgit v1.1