Print program basename instead of whole path in usage()

Signed-off-by: Horst Kronstorfer <hkronsto@frequentis.com>

diff --git a/tools/mkenvimage.c b/tools/mkenvimage.c
index 9c32f4a5725fc8503c42f958f705eb683a3b8bbc..3bb471d310ee6f1fa5f5d9e388290d11f395bb16 100644 (file)
--- a/tools/mkenvimage.c
+++ b/tools/mkenvimage.c
@@ -25,6 +25,9 @@
  * MA 02111-1307 USA
  */
 
+/* We want the GNU version of basename() */
+#define _GNU_SOURCE
+
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
@@ -79,6 +82,9 @@ int main(int argc, char **argv)
        struct stat txt_file_stat;
 
        int fp, ep;
+       const char *prg;
+
+       prg = basename(argv[0]);
 
        /* Parse the cmdline */
        while ((option = getopt(argc, argv, "s:o:rbp:h")) != -1) {
@@ -104,11 +110,11 @@ int main(int argc, char **argv)
                        padbyte = strtol(optarg, NULL, 0);
                        break;
                case 'h':
-                       usage(argv[0]);
+                       usage(prg);
                        return EXIT_SUCCESS;
                default:
                        fprintf(stderr, "Wrong option -%c\n", option);
-                       usage(argv[0]);
+                       usage(prg);
                        return EXIT_FAILURE;
                }
        }
@@ -118,7 +124,7 @@ int main(int argc, char **argv)
                fprintf(stderr,
                        "Please specify the size of the envrionnment "
                        "partition.\n");
-               usage(argv[0]);
+               usage(prg);
                return EXIT_FAILURE;
        }