Improve metroidbuildinfo, use file instead of string passed from command line

Makefile

@@ -94,6 +94,7 @@ endif
 CC      =  $(WINE) tools/mwcc_compiler/$(MWCC_VERSION)/mwcceppc.exe
 LD      := $(WINE) tools/mwcc_compiler/$(MWLD_VERSION)/mwldeppc.exe
 ELF2DOL := tools/elf2dol
+METROIDBUILDINFO := tools/metroidbuildinfo
 
 TRANSFORM_DEP := tools/transform-dep.py
 FRANK := tools/franklite.py
@@ -163,6 +164,7 @@ $(LDSCRIPT): ldscript.lcf
 
 $(DOL): $(ELF) | tools
 	$(QUIET) $(ELF2DOL) $< $@
+	$(METROIDBUILDINFO) $@ buildstrings/$(NAME).$(VERSION).build
 	$(QUIET) $(SHA1SUM) -c sha1/$(NAME).$(VERSION).sha1
 ifneq ($(findstring -map,$(LDFLAGS)),)
 	$(QUIET) $(PYTHON) tools/calcprogress.py $(DOL) $(MAP)

asm/MetroidPrime/CFrontEndUI.s

@@ -127,6 +127,7 @@ MetroidBuildInfo:
 	.ascii "!#$MetroidBuildInfo!#$"
 .global BuildString
 BuildString:
+#.asciz "PAD_PAD_PAD_PAD_PAD_PAD_PAD_PAD_PAD"
 .if version == 2
 	.asciz "Build v1.097 12/19/2002 16:03:43"
 	.asciz "AD"

tools/Makefile

@@ -3,10 +3,13 @@ CFLAGS := -O3 -Wall -s
 
 default: all
 
-all: elf2dol
+all: elf2dol metroidbuildinfo
 
 elf2dol: elf2dol.c
 	$(CC) $(CFLAGS) -o $@ $^
 
+metroidbuildinfo: metroidbuildinfo.c
+	$(CC) $(CFLAGS) -o $@ $^
+
 clean:
-	$(RM) elf2dol
+	$(RM) elf2dol metroidbuildinfo

tools/metroidbuildinfo.c

@@ -2,7 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#define VERSION_MAX_LEN 35
+#define VERSION_MAX_LEN (size_t)(35)
 #define METROID_BUILD_INFO_TAG "!#$MetroidBuildInfo!#$"
 
 void* memmem(const void* l, size_t l_len, const void* s, size_t s_len) {
@@ -44,7 +44,7 @@ int main(int argc, const char* argv[]) {
 
     );
     fprintf(stdout, "Usage:\n"
-                    "\tmetroidbuildinfo <binary> <version-string>\n");
+                    "\tmetroidbuildinfo <binary> <build_file>\n");
     return -1;
   }
 
@@ -55,13 +55,22 @@ int main(int argc, const char* argv[]) {
     return -2;
   }
 
-  /* Verify string length, if the string is too long hard error */
-  if (strlen(argv[2]) > VERSION_MAX_LEN) {
-    fprintf(stderr, "Version string '%s'\ntoo long, got %i, expected %i\n", argv[2], ver_len,
-            VERSION_MAX_LEN);
+  char build_string[36] = {0};
+  FILE* build = fopen(argv[2], "rb");
+
+  if (!build) {
+    fprintf(stderr, "Unable to open '%s'\nPlease ensure the file exists!\n", argv[2]);
     return -3;
   }
-  /* Lets include the null terminator */
+  size_t read_len = fread(build_string, 1, 35, build);
+  fclose(build);
+
+  if (read_len <= 0) {
+    fprintf(stderr, "Empty file %s specified for build version!\n", argv[2]);
+    return -4;
+  }
+
+  build_string[strcspn(build_string, "\n")] = '\0';
 
   /* Get source length */
   fseek(source, 0, SEEK_END);
@@ -70,7 +79,7 @@ int main(int argc, const char* argv[]) {
   void* source_buf = malloc(source_len);
   if (source_buf == NULL) {
     fprintf(stderr, "Unable to allocate buffer of size %zubytes!\n", source_len);
-    return -4;
+    return -5;
   }
   fread(source_buf, 1, source_len, source);
   fclose(source);
@@ -84,7 +93,7 @@ int main(int argc, const char* argv[]) {
   }
 
   /* Lets actually copy over the build string */
-  strcpy(ptr + strlen(METROID_BUILD_INFO_TAG), argv[2]);
+  strcpy(ptr + strlen(METROID_BUILD_INFO_TAG), build_string);
 
   /* Now attempt to open the target file */
   FILE* target = fopen(argv[1], "wb");
@@ -101,5 +110,5 @@ int main(int argc, const char* argv[]) {
   /* Don't leak */
   free(source_buf);
 
-  return 1;
+  return 0;
 }