profile.cを追加

c/profile.c

@@ -0,0 +1,54 @@
+/* profile.c
+Windows版、Mac版の洞窟物語のセーブデータ(Profile.dat)を相互に変換する
+(C)2012 kou029w - MIT License
+*/
+
+#include <stdio.h>
+#include <stdint.h>
+
+uint16_t swab2(uint16_t x) {
+  return ((x << 8) | (x >> 8));
+}
+
+uint32_t swab4(uint32_t x){
+  return ((swab2(x) << 16) | swab2(x >> 16));
+}
+
+int profile(char *filename){
+  FILE *fp;
+  unsigned char bufc[8];
+  unsigned short bufs[8];
+  unsigned int bufi[123];
+  int i;
+  size_t size;
+  fp = fopen(filename, "rb");
+  if(fp == NULL) return 1;
+  size = fread(bufc, sizeof(unsigned char), 8, fp);
+  fwrite(bufc, sizeof(unsigned char), size, stdout);
+  size = fread(bufi, sizeof(unsigned int), 5, fp);
+  for(i=0; i<size; i++){
+    bufi[i] = swab4(bufi[i]);
+  }
+  fwrite(bufi, sizeof(unsigned int), size, stdout);
+  size = fread(bufs, sizeof(unsigned short), 8, fp);
+  for(i=0; i<size; i++){
+    bufs[i] = swab2(bufs[i]);
+  }
+  fwrite(bufs, sizeof(unsigned short), size, stdout);
+  size = fread(bufi, sizeof(unsigned int), 123, fp);
+  for(i=0; i<size; i++){
+    bufi[i] = swab4(bufi[i]);
+  }
+  fwrite(bufi, sizeof(unsigned int), size, stdout);
+  while(size = fread(bufc, sizeof(unsigned char), 8, fp)){
+    fwrite(bufc, sizeof(unsigned char), size, stdout);
+  }
+  return 0;
+}
+
+int main(int argc, char *argv[]){
+  if(argc > 1){
+    return profile(argv[1]);
+  }
+  return 0;
+}