Initial revision

1 files changed, 305 insertions, 0 deletions

diff --git a/Xenogears/reinsert.cpp b/Xenogears/reinsert.cpp
new file mode 100644
index 0000000..e58b871
--- /dev/null
+++ b/Xenogears/reinsert.cpp
@@ -0,0 +1,305 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "fileutils.h"
+#include "cdutils.h"
+#include "generic.h"
+
+unsigned int tourne = 0;
+
+struct t_index_tab {
+    unsigned long address;
+    long size;
+    long type;
+    long index;
+};
+
+struct t_sequence {
+    unsigned int n;
+    unsigned int sum;
+    char *prefix;
+    char *name;
+    int type;
+};
+
+char *title, *iso_filename, *tbl_filename, *prefix, *in_filename;
+unsigned long iso_size;
+unsigned int nb_records, nb_seqs = 0;
+struct t_sequence sequences[1000];
+
+int slus_index = -1, force = 0;
+
+long check_iso(int f_iso);
+void write_files(int f_iso_r, int f_iso_w, int f_in, int fileindex);
+int process_def_file(int  f_def);
+
+unsigned char user_data[2352];
+
+void usage(char ** argv) {
+	fprintf(stderr, "Usage: %s <definition_file.sqr> <iso_file_name> <file_index> <filename> [-f]\nSee readme.txt for details\n",
+	       argv[0]);
+	exit(-1);
+}
+
+int main(int argc, char **argv)
+{
+    int f_def, f_iso_r, f_iso_w, f_in;
+    int fileindex;
+    
+    verbosity = 1;
+    
+    fprintf(stderr, "Xenogears File Insertor by Nicolas \"Pixel\" Noble\n\n");
+
+    if ((argc != 5) && (argc != 6)) {
+	usage(argv);
+    }
+    
+    if (argc == 6) {
+	if (strcmp(argv[5], "-f")) {
+	    usage(argv);
+	} else {
+	    force = 1;
+	}
+    }
+
+    printm(M_STATUS, "Processing file %s...\n", argv[1]);
+
+    if ((f_def = open(argv[1], O_RDONLY)) < 0) {
+	printm(M_ERROR, "Unable to open the definition file \"%s\"...\n", argv[1]);
+	exit(-1);
+    }
+
+    if (process_def_file(f_def)) {
+	close(f_def);
+	printm(M_ERROR, "Unable to process the definition file \"%s\"...\n", argv[1]);
+	exit(-1);
+    }
+
+    iso_filename = argv[2];
+
+    printm(M_STATUS, "Begin processing iso file.\n");
+    if ((f_iso_r = open(iso_filename, O_RDONLY)) < 0) {
+	printm(M_ERROR, "Unable to open the iso file \"%s\"...\n", iso_filename);
+	exit(-1);
+    }
+    
+    if ((f_iso_w = open(iso_filename, O_WRONLY)) < 0) {
+	printm(M_ERROR, "Unable to open the iso file \"%s\"...\n", iso_filename);
+	exit(-1);
+    }
+    
+    if (check_iso(f_iso_r)) {
+	printm(M_ERROR, "Invalid iso file for %s\n", title);
+	printm(M_ERROR, "===> Make sure you are using a Genuine iso file.\n");
+    } else {
+	printm(M_INFO, "Genuine %s iso detected.\n", title);
+    }
+
+    fileindex = atoi(argv[3]);
+    in_filename = argv[4];
+    if ((f_in = open(in_filename, O_RDONLY)) < 0) {
+	printm(M_ERROR, "Unable to open the file \"%s\"...\n", in_filename);
+	exit(-1);
+    }
+
+    printm(M_STATUS, "Entering files write sequence\n");
+    write_files(f_iso_r, f_iso_w, f_in, fileindex);
+    close(f_iso_r);
+    close(f_iso_w);
+    exit(0);
+}
+
+/*
+ * Ugly but working... for now 
+ */
+int process_def_file(int h_f_def)
+{
+    char t[1024], *p;
+    unsigned int n, sum = 0;
+    FILE * f_def = fdopen(h_f_def, "r");
+
+    if ((p = strchr(fgets(t, 1024, f_def), '\n')) == NULL)
+	return 1;
+    *p = 0;
+    printm(M_INFO, "Read title: %s\n", t);
+    title = strdup(t);
+
+    if (fscanf(f_def, "%lu\n", &iso_size) != 1)
+	return 1;
+    printm(M_INFO, "Read iso size: %lu bytes\n", iso_size);
+
+    if ((p = strchr(fgets(t, 1024, f_def), '\n')) == NULL)
+	return 1;
+    *p = 0;
+    printm(M_INFO, "Read index table filename: %s\n", t);
+    tbl_filename = strdup(t);
+
+    if ((p = strchr(fgets(t, 1024, f_def), '\n')) == NULL)
+	return 1;
+    *p = 0;
+    printm(M_INFO, "Read global directory prefix: %s\n", t);
+    prefix = strdup(t);
+
+    if (fscanf(f_def, "%u\n", &nb_records) != 1)
+	return 1;
+    printm(M_INFO, "Read total of records: %u\n", nb_records);
+
+    while (1) {
+	if (fscanf(f_def, "%u\n", &n) != 1)
+	    return 1;
+	if (!n) {
+	    if (sum == nb_records) {
+		printm(M_INFO, "Definition file seems coherent\n");
+		return 0;
+	    } else {
+		printm(M_ERROR, "Definition file incoherent\n");
+		return 1;
+	    }
+	}
+	sum += n;
+	sequences[nb_seqs].n = n;
+	sequences[nb_seqs].sum = sum;
+	if ((p = strchr(fgets(t, 1024, f_def), '\n')) == NULL)
+	    return 1;
+	*p = 0;
+	sequences[nb_seqs].prefix = strdup(t);
+	if (fscanf(f_def, "%u\n", &n) != 1)
+	    return 1;
+	sequences[nb_seqs].type = n;
+	if ((p = strchr(fgets(t, 1024, f_def), '\n')) == NULL)
+	    return 1;
+	*p = 0;
+	sequences[nb_seqs].name = strdup(t);
+	printm(M_INFO, "Read definition of sequence %i:\n===> %5i (sum = %5i) chunks of %s (%s)\n",
+	       nb_seqs, n, sum, t, sequences[nb_seqs].prefix);
+	nb_seqs++;
+    }
+}
+
+long check_iso(int f_iso)
+{
+    unsigned long length;
+
+    length = filesize(f_iso);
+    printm(M_INFO, "Filesize of iso file %s is %ld bytes\n", iso_filename, length);
+    if (length != iso_size) {
+	return 1;
+    }
+    return 0;
+}
+
+#define INDEXPOS 24
+
+void rewrite_fat(int f_iso_r, int f_iso_w, unsigned char * new_fat) {
+    unsigned char old_fat[34816];
+    int i;
+
+    sector_seek(f_iso_w, INDEXPOS);
+    for (i = INDEXPOS; i < (INDEXPOS + 16); i++) {
+	printm(M_INFO, "Writing fat sector %lu\n", i);
+	write_sector(f_iso_r, f_iso_w, &new_fat[2048 * (i - INDEXPOS)], MODE_2_FORM_1);
+    }
+
+    sector_seek(f_iso_r, slus_index + 1);
+    for (i = slus_index + 1; i < (slus_index + 18); i++) {
+	printm(M_INFO, "Reading SLUS sector %lu\n", i);
+	read_sector(f_iso_r, &old_fat[2048 * (i - slus_index - 1)], MODE_2_FORM_1);
+    }
+
+    bcopy((char *) new_fat, (char *) old_fat + 4, 32768);
+    sector_seek(f_iso_w, slus_index + 1);
+    for (i = slus_index + 1; i < (slus_index + 18); i++) {
+	printm(M_INFO, "Writing SLUS sector %lu\n", i);
+	write_sector(f_iso_r, f_iso_w, &old_fat[2048 * (i - slus_index - 1)], MODE_2_FORM_1);
+    }
+}
+
+void write_files(int f_iso_r, int f_iso_w, int f_in, int fileindex)
+{
+    t_index_tab index_tab[10000];
+    unsigned char t[8];
+    unsigned long i;
+    unsigned long j;
+    unsigned int seq = 0;
+    unsigned long indexer;
+    struct t_index_tab *p = (struct t_index_tab *) t;
+    
+    long old_file_size, new_file_size, old_nb_sects, new_nb_sects;
+    unsigned char fat[32768];
+
+    sector_seek(f_iso_r, INDEXPOS);
+    for (i = INDEXPOS; i < (INDEXPOS + 16); i++) {
+	printm(M_INFO, "Reading fat sector %lu\n", i);
+	read_sector(f_iso_r, &fat[2048 * (i - INDEXPOS)], MODE_2_FORM_1);
+    }
+
+    indexer = 0;
+    for (j = 0; j < 32768; j = j + 7) {
+	t[0] = 0;
+	bcopy((char *) &fat[j], (char *) t + 1, 7);
+	p->address >>= 8;
+	index_tab[indexer] = *p;
+	if (p->size > 0 && p->address != 0) {
+	    index_tab[indexer].index = j / 7;
+	    printm(M_INFO, "Found a quite valid index: number %4lu, address %6lu, size %3li\n",
+		   indexer, index_tab[indexer].address, index_tab[indexer].size);
+	    indexer++;
+	    if (indexer == nb_records)
+		break;
+	} else {
+	    printm(M_WARNING, "Ignored invalid index chunk number %4lu (size = %lu) (%02x %02x %02x %02x %02x %02x %02x)\n",
+		 j / 7, -index_tab[indexer].size, t[0], t[1], t[2], t[4], t[5], t[6], t[7]);
+	}
+    }
+    printm(M_STATUS, "Index file generation complete.\n\n");
+
+    for (i = 0; i < nb_records; i++) {
+	if (sequences[seq].sum == i)
+	    seq++;
+	index_tab[i].type = sequences[seq].type;
+	if (!strcmp(sequences[seq].prefix, "SLUS")) {
+	    if (slus_index >= 0) {
+		printm(M_ERROR, "Two SLUS files defined\n");
+		exit(-1);
+	    }
+	    slus_index = index_tab[i].address;
+	}
+    }
+    
+    if (slus_index < 0) {
+	printm(M_ERROR, "No SLUS file defined\n");
+	exit(-1);
+    }
+    
+    printm(M_INFO, "SLUS file found at sector %6i\n", slus_index);
+    
+    new_file_size = filesize(f_in);
+    old_file_size = index_tab[fileindex].size;
+    
+    new_nb_sects = new_file_size / sec_sizes[index_tab[fileindex].type];
+    old_nb_sects = old_file_size / sec_sizes[index_tab[fileindex].type];
+    
+    if (new_file_size % sec_sizes[index_tab[fileindex].type]) {
+	new_nb_sects++;
+    }
+    
+    if (old_file_size % sec_sizes[index_tab[fileindex].type]) {
+	old_nb_sects++;
+    }
+    
+    if (new_nb_sects > old_nb_sects) {
+	printm(M_ERROR, "New file too big.\n");
+	if (!force) {
+	    exit(-1);
+	}
+    }
+    
+    printm(M_INFO, "New file size:  %12li, old file size:  %12li\n", new_file_size, old_file_size);
+    printm(M_INFO, "New file ssize: %12li, old file ssize: %12li\n", new_nb_sects, old_nb_sects);
+    
+    printm(M_INFO, "File address: %6i\n", index_tab[fileindex].address);
+    
+    write_file(f_iso_r, f_iso_w, f_in, index_tab[fileindex].type, index_tab[fileindex].address);
+    *((long *)(&fat[index_tab[fileindex].index * 7 + 3])) = new_file_size;
+    rewrite_fat(f_iso_r, f_iso_w, fat);
+}