Added hexdump

Author Mitja Felicijan <mitja.felicijan@gmail.com> 2025-08-06 04:57:13 +0200
Committer Mitja Felicijan <mitja.felicijan@gmail.com> 2025-08-06 04:57:13 +0200
Commit 684d3b5308083b762e29a08174702ff7134824a3 (patch)
-rw-r--r-- .gitignore 1
-rw-r--r-- Makefile 11
-rw-r--r-- hexdump.c 57
3 files changed, 65 insertions, 4 deletions
diff --git a/.gitignore b/.gitignore
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# Binary files
1
# Binary files
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bidi
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bidi
  
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hexdump
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vendor/lua*/src/lua
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vendor/lua*/src/lua
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vendor/lua*/src/luac
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vendor/lua*/src/luac
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6
  
...
diff --git a/Makefile b/Makefile
  
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CC      ?= tcc
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RAYLIB  := raylib-5.5_linux_amd64
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RAYLIB  := raylib-5.5_linux_amd64
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LUA     := lua-5.4.8
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LUA     := lua-5.4.8
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CC      ?= tcc
  
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CFLAGS  := -std=c99 -v -g -I./vendor/$(RAYLIB)/include -I./vendor/$(LUA)/src
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CFLAGS  := -std=c99 -v -g -I./vendor/$(RAYLIB)/include -I./vendor/$(LUA)/src
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LDFLAGS := -L./vendor/$(RAYLIB)/lib -lraylib -L./vendor/$(LUA)/src -llua -lm
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LDFLAGS := -L./vendor/$(RAYLIB)/lib -lraylib -L./vendor/$(LUA)/src -llua -lm
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PROG    := bidi
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PROG    := bidi
  
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PROG_C  := main.c
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8
  
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$(PROG): lua *.c
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$(PROG): lua hexdump $(PROG_C)
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	$(CC) $(CFLAGS) *.c -o $(PROG) $(LDFLAGS)
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	$(CC) $(CFLAGS) $(PROG_C) -o $(PROG) $(LDFLAGS)
  
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hexdump: hexdump.c
  
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	$(CC) -std=c99 -o hexdump hexdump.c
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lua:
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lua:
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	cd vendor/$(LUA) && make
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	cd vendor/$(LUA) && make
diff --git a/hexdump.c b/hexdump.c
  
1
#include <stdio.h>
  
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#include <stdlib.h>
  
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int main(int argc, char *argv[]) {
  
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	if (argc < 3) {
  
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		fprintf(stderr, "Usage: %s <input_file> <array_name>\n", argv[0]);
  
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		return 1;
  
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	}
  
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	const char *filename = argv[1];
  
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	const char *array_name = argv[2];
  
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	FILE *f = fopen(filename, "rb");
  
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	if (!f) {
  
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		perror("fopen");
  
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		return 1;
  
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	}
  
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	fseek(f, 0, SEEK_END);
  
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	long size = ftell(f);
  
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	rewind(f);
  
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	unsigned char *buffer = malloc(size);
  
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	if (!buffer) {
  
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		perror("malloc");
  
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		fclose(f);
  
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		return 1;
  
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	}
  
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	if (fread(buffer, 1, size, f) != (size_t)size) {
  
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		perror("fread");
  
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		free(buffer);
  
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		fclose(f);
  
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		return 1;
  
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	}
  
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	// Generate include guard
  
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	printf("#ifndef %s_H\n", array_name);
  
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	printf("#define %s_H\n\n", array_name);
  
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	printf("unsigned char %s[] = {\n", array_name);
  
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	for (long i = 0; i < size; i++) {
  
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		if (i % 12 == 0) printf("\t");
  
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		printf("0x%02x", buffer[i]);
  
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		if (i != size - 1) printf(", ");
  
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		if ((i + 1) % 12 == 0) printf("\n");
  
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	}
  
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	if (size % 12 != 0) printf("\n");
  
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	printf("};\n");
  
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	printf("unsigned int %s_len = %ld;\n", array_name, size);
  
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	printf("\n#endif // %s_H\n", array_name);
  
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	free(buffer);
  
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	fclose(f);
  
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	return 0;
  
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}