isosize: use program_invocation_short_name

Signed-off-by: Francesco Cosoleto <cosoleto@gmail.com>

diff --git a/disk-utils/isosize.c b/disk-utils/isosize.c
index d00e4f0e068c88b06c59abb819bc01f0b6ce0b29..cba107c829139bd9741900ad4e2ef10c7a7eebfd 100644 (file)
--- a/disk-utils/isosize.c
+++ b/disk-utils/isosize.c
@@ -24,6 +24,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <string.h>
+#include <errno.h>
 
 #include "nls.h"
 #include "c.h"
@@ -117,7 +118,6 @@ struct iso_primary_descriptor {
     unsigned char unused5                   [ISODCL (1396, 2048)];
 };
 
-const char *progname;
 int divisor = 0;
 
 static void
@@ -159,17 +159,13 @@ main(int argc, char * argv[]) {
        int j, ct;
        char *p;
 
-       progname = argv[0];
-       if ((p = strrchr(progname, '/')) != NULL)
-               progname = p+1;
-
        setlocale(LC_ALL, "");
        bindtextdomain(PACKAGE, LOCALEDIR);
        textdomain(PACKAGE);
 
        if (argc >= 2 &&
            (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version"))) {
-               printf(_("%s (%s)\n"), progname, PACKAGE_STRING);
+               printf(_("%s (%s)\n"), program_invocation_short_name, PACKAGE_STRING);
                exit(0);
        }
 
@@ -195,7 +191,7 @@ main(int argc, char * argv[]) {
 
        if (ct <= 0) {
                fprintf(stderr, _("Usage: %s [-x] [-d <num>] iso9660-image\n"),
-                       progname);
+                       program_invocation_short_name);
                exit(1);
        }