/atari_chips/pokeyv2/find_offset.cpp - Annotate - EclaireXL - 64kib

repo2/atari_chips/pokeyv2/find_offset.cpp @ 1476

-            markw
+#include <stdio.h>
 #include <string>
 int main(int argc, char **  argv)
+{
 	if (argc!=5)
+	{
 		fprintf(stderr,"Expected pattern_file,pattern_offset,pattern_len,match_file\n");
 		return -1;
+	}
 	std::string pattern = argv[1];
 	int offset = atoi(argv[2]);
-            markw
+	size_t len = atoi(argv[3]);
-            markw
+	std::string find_in_here = argv[4];
 	FILE * p = fopen(pattern.c_str(),"rb");
 	if (!p)
+	{
 		fprintf(stderr,"Unable to open %s\n",pattern.c_str());
 		return -1;
+	}
 	fseek(p,offset,SEEK_SET);
 	unsigned char * data = (unsigned char *)malloc(len);
 	if (fread(data,1,len,p)!=len)
+	{
 		fprintf(stderr,"Unable to read pattern\n");
 		return -1;
+	}
 	fclose(p);
 	FILE * f = fopen(find_in_here.c_str(),"rb");
 	if (!f)
+	{
 		fprintf(stderr,"Unable to open %s\n",find_in_here.c_str());
 		return -1;
+	}
 	int file_offset = 0;
 	unsigned char * match = (unsigned char *)malloc(len);
 	bool found = false;
 	while (!found)
+	{
 		fseek(f,file_offset,SEEK_SET);
 		if (fread(match,1,len,f) !=len)
 			break;
 		found = true;
-            markw
+		for (size_t i=0;i!=len;++i)
             markw
 			//printf("%d:%d:%02x %02x\n",file_offset,i,match[i],data[i]);
 			if (match[i]!=data[i])
+			{
 				found = false;
 				break;
+			}
+		}
 		if (found)
+		{
 			printf("%08x",file_offset);
 			break;
+		}
 		++file_offset;
+	}
 	fclose(f);
 	free(match);
 	free(data);
 	if (found)
 		return 0;
 	else
 		return -1;
+}