1 files changed, 46 insertions, 0 deletions
diff --git a/bincmp.c b/bincmp.c
new file mode 100644
index 0000000..1037ec8
--- /dev/null
+++ b/bincmp.c
@@ -0,0 +1,46 @@
+#include <stdio.h>
+
+int main(argc,argv)
+int argc;
+char **argv;
+{
+   FILE *f1,*f2;
+   unsigned char c1,c2;
+   long pos=0;
+   
+   if (argc!=3)
+    {
+     fprintf(stderr,"calling convention: %s <file1> <file2>\n",argv[0]);
+     return 1;
+    }
+
+   f1=fopen(argv[1],"rb");
+   if (f1==NULL)
+    {
+     perror(argv[1]); return 2;
+    }
+   f2=fopen(argv[2],"rb");
+   if (f2==NULL)
+    {
+     perror(argv[2]); return 2;
+    }
+
+   while ((!feof(f1))&&(!feof(f2)))
+    {
+     fread(&c1,1,1,f1); fread(&c2,1,1,f2);
+     if (c1!=c2)
+      {
+       fprintf(stderr,"compare error at position %d\n",pos);
+       fclose(f1); fclose(f2); return 3;
+      }
+     pos++;
+    }
+
+   if (feof(f1)!=feof(f2))
+    {
+     fprintf(stderr,"files have different sizes\n");
+     fclose(f1); fclose(f2); return 4;
+    }
+
+   fclose(f1); fclose(f2); return 0;
+}