From dad5c8875c20e9756c8d50a44fbd24ec17f3035a Mon Sep 17 00:00:00 2001
From: Bradley Bell <btb@icculus.org>
Date: Tue, 13 Aug 2002 06:45:00 +0000
Subject: [PATCH] added utilities

---
 utility/hogcreate.c  | 57 ++++++++++++++++++++++++++++++++++++++++++++
 utility/hogextract.c | 45 ++++++++++++++++++++++++++++++++++
 utility/txb2txt.c    | 40 +++++++++++++++++++++++++++++++
 utility/txt2txb.c    | 44 ++++++++++++++++++++++++++++++++++
 4 files changed, 186 insertions(+)
 create mode 100644 utility/hogcreate.c
 create mode 100644 utility/hogextract.c
 create mode 100755 utility/txb2txt.c
 create mode 100755 utility/txt2txb.c

diff --git a/utility/hogcreate.c b/utility/hogcreate.c
new file mode 100644
index 00000000..bf6aa07f
--- /dev/null
+++ b/utility/hogcreate.c
@@ -0,0 +1,57 @@
+/* Written 1999 Jan 29 by Josh Cogliati
+   I grant this program to public domain.
+*/
+#include<stdio.h>
+#include<sys/types.h>
+#include<sys/stat.h>
+#include<fcntl.h>
+#include<dirent.h>
+
+
+void main(int argc, char *argv[]){
+  FILE * hogfile, * readfile;
+  DIR * dp;
+  struct dirent *ep;
+  int fp, len, fseekret=0;
+  char filename[13];
+  char * buf;
+  struct stat statbuf;
+  if(argc != 2){
+    printf("Usage: hogcreate hogfile\n"
+	   "creates hogfile using all the files in the current directory\n"
+	   );
+    exit(0);
+  }
+  hogfile = fopen(argv[1],"w"); 
+  buf = (char *)malloc(3);
+  strncpy(buf,"DHF",3);
+  fwrite(buf,3,1,hogfile);
+  printf("Creating: %s\n",argv[1]);
+  free(buf);
+  dp = opendir("./");
+  if (dp != NULL) {
+    while (ep = readdir(dp)) {
+      strcpy(filename, ep->d_name);
+      stat(filename,&statbuf);
+      if(! S_ISDIR(statbuf.st_mode)) {
+	printf("Filename: %s \tLength: %i\n",filename,statbuf.st_size);
+	readfile = fopen(filename,"r");
+	buf = (char *)malloc(statbuf.st_size);
+	if(buf == NULL) {
+	  printf("Unable to allocate memery\n");
+	} else {
+	  fwrite(filename, 13,1,hogfile);
+	  fwrite(&statbuf.st_size, sizeof(int),1,hogfile);
+	  fread(buf,statbuf.st_size, 1 , readfile);
+	  fwrite(buf,statbuf.st_size, 1 , hogfile);
+	}
+	fclose(readfile);
+
+      }
+    }
+    closedir(dp);
+  }
+  fclose(hogfile);
+}
+
+
diff --git a/utility/hogextract.c b/utility/hogextract.c
new file mode 100644
index 00000000..23881aa0
--- /dev/null
+++ b/utility/hogextract.c
@@ -0,0 +1,45 @@
+/* Written 1999 Jan 29 by Josh Cogliati
+   I grant this program to public domain.
+*/
+#include<stdio.h>
+#include<sys/types.h>
+#include<sys/stat.h>
+#include<fcntl.h>
+
+
+void main(int argc, char *argv[]){
+  FILE * hogfile, * writefile;
+  int fp, len, fseekret=0;
+  char filename[13];
+  char * buf;
+  struct stat statbuf;
+  if(argc != 2){
+    printf("Usage: hogextract hogfile\n"
+	   "extracts all the files in hogfile into the current directory\n"
+	   );
+    exit(0);
+  }
+  hogfile = fopen(argv[1],"r"); 
+  stat(argv[1],&statbuf);
+  printf("%i\n",statbuf.st_size);
+  buf = (char *)malloc(3);
+  fread(buf,3,1,hogfile);
+  printf("Extracting from: %s\n",argv[1]);
+  free(buf);
+  while(ftell(hogfile)<statbuf.st_size){
+    fread(filename,13,1,hogfile);
+    fread(&len,sizeof(int),1,hogfile);
+    printf("Filename: %s \tLength: %i\n",filename,len);
+    buf = (char *)malloc(len);
+    if(buf == NULL) {
+      printf("Unable to allocate memory\n");
+    } else {
+      fread(buf,len,1,hogfile);
+      writefile = fopen(filename,"w");
+      fwrite(buf, len, 1 , writefile);
+      fclose(writefile);
+      free(buf);
+    };
+  }
+  fclose(hogfile);
+}
diff --git a/utility/txb2txt.c b/utility/txb2txt.c
new file mode 100755
index 00000000..196470fd
--- /dev/null
+++ b/utility/txb2txt.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+    
+main(int ac,char *av[]) {
+  FILE *file,*outfile;
+  char equals,ch;
+  int code;
+    
+  if (ac!=3) {
+    printf("TXB2TXT V1.0 Copyright (c) Bryan Aamot, 1995\n"
+           "TXB to Text converter for Descent HOG files.\n"
+           "Converts a *.txb descent hog file to an ascii file.\n"
+           "Usage: TXB2TXT <txb file name> <text file name>\n"
+           "Example: TXT2TXB briefing.txb briefing.txt\n");
+    exit(1);
+  }
+  file = fopen(av[1],"rb");
+  if (!file) {
+    printf("Can't open txb file (%s)\n",av[1]);
+    exit(2);
+  }
+  outfile = fopen(av[2],"wb");
+  if (!outfile) {
+    printf("Can't open file (%s)\n",av[2]);
+    fclose(file);
+    exit(2);
+  }
+  for (;;) {
+    code = getc(file);
+    if (feof(file)) break;
+    if (code == 0x0a) {
+      fprintf(outfile,"\x0d\x0a");
+    } else {
+      ch = (  ( (code&0x3f) << 2 ) + ( (code&0xc0) >> 6 )  ) ^ 0xa7;
+      fprintf(outfile,"%c",ch);
+    }
+  }
+
+  fclose(outfile);
+  fclose(file);
+}
diff --git a/utility/txt2txb.c b/utility/txt2txb.c
new file mode 100755
index 00000000..eee8ed29
--- /dev/null
+++ b/utility/txt2txb.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+
+main(int ac,char *av[]) {
+  FILE *file,*outfile;
+  char equals,ch;
+  int code;
+
+  if (ac!=3) {
+    printf("TXT2TXB V1.0 Copyright (c) Bryan Aamot, 1995\n"
+           "Text to TXB converter for Descent HOG files.\n"
+           "Converts a ascii text files to *.txb descent hog file format.\n"
+           "Usage: TXT2TXB <text file name> <txb file name>\n"
+           "Example: TXT2TXB briefing.txt briefing.txb\n");
+    exit(1);
+  }
+  file = fopen(av[1],"rb");
+  if (!file) {
+    printf("Can't open file (%s)\n",av[1]);
+    exit(2);
+  }
+
+  outfile = fopen(av[2],"wb");
+  if (!outfile) {
+    printf("Can't open file (%s)\n",av[2]);
+    fclose(file);
+    exit(2);
+  }
+
+  for (;;) {
+    ch = getc(file);
+    if (feof(file)) break;
+    if (ch!=0x0d) {
+      if (ch==0x0a) {
+        fprintf(outfile,"\x0a");
+      } else {
+        code = ( ( (ch &0xfC) >> 2) + ( (ch &0x03) << 6 ) ) ^ 0xe9;
+        fprintf(outfile,"%c",code);
+      }
+   }
+  }
+
+  fclose(outfile);
+  fclose(file);
+}
-- 
2.39.2