3 files changed, 13 insertions, 100 deletions

diff --git a/arg.h b/arg.h
deleted file mode 100644
index 4df77a7..0000000
--- a/arg.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copy me if you can.
- * by 20h
- */
-
-#ifndef ARG_H__
-#define ARG_H__
-
-extern char *argv0;
-
-/* use main(int argc, char *argv[]) */
-#define ARGBEGIN	for (argv0 = *argv, argv++, argc--;\
-					argv[0] && argv[0][1]\
-					&& argv[0][0] == '-';\
-					argc--, argv++) {\
-				char argc_;\
-				char **argv_;\
-				int brk_;\
-				if (argv[0][1] == '-' && argv[0][2] == '\0') {\
-					argv++;\
-					argc--;\
-					break;\
-				}\
-				for (brk_ = 0, argv[0]++, argv_ = argv;\
-						argv[0][0] && !brk_;\
-						argv[0]++) {\
-					if (argv_ != argv)\
-						break;\
-					argc_ = argv[0][0];\
-					switch (argc_)
-
-/* Handles obsolete -NUM syntax */
-#define ARGNUM				case '0':\
-					case '1':\
-					case '2':\
-					case '3':\
-					case '4':\
-					case '5':\
-					case '6':\
-					case '7':\
-					case '8':\
-					case '9'
-
-#define ARGEND			}\
-			}
-
-#define ARGC()		argc_
-
-#define ARGNUMF(base)	(brk_ = 1, estrtol(argv[0], (base)))
-
-#define EARGF(x)	((argv[0][1] == '\0' && argv[1] == NULL)?\
-				((x), abort(), (char *)0) :\
-				(brk_ = 1, (argv[0][1] != '\0')?\
-					(&argv[0][1]) :\
-					(argc--, argv++, argv[0])))
-
-#define ARGF()		((argv[0][1] == '\0' && argv[1] == NULL)?\
-				(char *)0 :\
-				(brk_ = 1, (argv[0][1] != '\0')?\
-					(&argv[0][1]) :\
-					(argc--, argv++, argv[0])))
-
-#endif
diff --git a/ff2png.c b/ff2png.c
index abf2f09..5809da6 100644
--- a/ff2png.c
+++ b/ff2png.c
@@ -4,38 +4,25 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <png.h>
-
-#include "arg.h"
 
-char *argv0;
+#include <png.h>
 
 #define HEADER_FORMAT "farbfeld########"
 
-static void
-usage(void)
-{
-	fprintf(stderr, "usage: %s\n", argv0);
-	exit(1);
-}
-
 int
 main(int argc, char *argv[])
 {
 	png_structp png_struct_p;
 	png_infop png_info_p;
-	uint8_t hdr[17], *png_row;
+	uint8_t hdr[16], *png_row;
 	uint16_t tmp16;
 	png_uint_32 width, height, i;
 	png_size_t png_row_len, j;
 
-	ARGBEGIN {
-	default:
-		usage();
-	} ARGEND;
-
-	if (argc)
-		usage();
+	if (argc > 1) {
+		fprintf(stderr, "usage: %s\n", argv[0]);
+		return 1;
+	}
 
 	/* header */
 	if (fread(hdr, 1, strlen(HEADER_FORMAT), stdin) != strlen(HEADER_FORMAT)) {
@@ -87,5 +74,6 @@ main(int argc, char *argv[])
 	png_free_data(png_struct_p, png_info_p, PNG_FREE_ALL, -1);
 	png_destroy_write_struct(&png_struct_p, NULL);
 	free(png_row);
+
 	return 0;
 }
diff --git a/png2ff.c b/png2ff.c
index 3d5e35f..3a4329d 100644
--- a/png2ff.c
+++ b/png2ff.c
@@ -3,18 +3,8 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <png.h>
-
-#include "arg.h"
-
-char *argv0;
 
-static void
-usage(void)
-{
-	fprintf(stderr, "usage:%s\n", argv0);
-	exit(1);
-}
+#include <png.h>
 
 int
 main(int argc, char *argv[])
@@ -26,13 +16,10 @@ main(int argc, char *argv[])
 	uint32_t width, height, png_row_len, tmp32, r, i;
 	uint16_t tmp16;
 
-	ARGBEGIN {
-	default:
-		usage();
-	} ARGEND
-
-	if (argc)
-		usage();
+	if (argc > 1) {
+		fprintf(stderr, "usage:%s\n", argv[0]);
+		return 1;
+	}
 
 	/* load png */
 	png_struct_p = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL,
@@ -72,5 +59,6 @@ main(int argc, char *argv[])
 
 	/* cleanup */
 	png_destroy_read_struct(&png_struct_p, &png_info_p, NULL);
+
 	return 0;
 }