cmpmrg_text: allow to skip actual comparison

[ia32rtools.git] / tools / cmpmrg_text.c

diff --git a/tools/cmpmrg_text.c b/tools/cmpmrg_text.c
index 3862ef3..015db89 100644 (file)
--- a/tools/cmpmrg_text.c
+++ b/tools/cmpmrg_text.c
@@ -482,24 +482,33 @@ int main(int argc, char *argv[])
        FILE *f_obj, *f_exe;
        SCNHDR tmphdr;
        long sztext_cmn;
+       int do_cmp = 1;
        int retval = 1;
        int left;
+       int arg;
        int ret;
        int i;
 
-       if (argc != 3) {
-               printf("usage:\n%s <a_obj> <exe>\n", argv[0]);
+       for (arg = 1; arg < argc; arg++) {
+               if (!strcmp(argv[arg], "-n"))
+                       do_cmp = 0;
+               else
+                       break;
+       }
+
+       if (argc != arg + 2) {
+               printf("usage:\n%s [-n] <a_obj> <exe>\n", argv[0]);
                return 1;
        }
 
-       f_obj = fopen(argv[1], "r+b");
+       f_obj = fopen(argv[arg++], "r+b");
        if (f_obj == NULL) {
                fprintf(stderr, "%s: ", argv[1]);
                perror("");
                return 1;
        }
 
-       f_exe = fopen(argv[2], "r");
+       f_exe = fopen(argv[arg++], "r");
        if (f_exe == NULL) {
                fprintf(stderr, "%s: ", argv[2]);
                perror("");
@@ -539,6 +548,7 @@ int main(int argc, char *argv[])
                }
        }
 
+       if (do_cmp)
        for (i = 0; i < sztext_cmn; i++)
        {
                if (s_text_obj.data[i] == s_text_exe.data[i])