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#include <cassert>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <limits>
using namespace std;
#ifndef ATTR_NORET
# ifdef __GNUC__
# define ATTR_NORET __attribute__((noreturn))
# else
# define ATTR_NORET
# endif
#endif
void rebuild() ATTR_NORET;
void rebuild() {
FILE* fi = fopen("index", "r");
if (fi == nullptr) {
printf("Can't open index file.\n");
exit(0);
}
FILE* fo = fopen("usecode", "wb");
if (fo == nullptr) {
printf("Can't create usecode file.\n");
exit(0);
}
while (!feof(fi)) {
char s[10];
char* err = fgets(s, 10, fi);
assert(err != nullptr);
char filename[18];
strcpy(filename, s);
char* pos = strchr(filename, '\n');
if (pos) {
*pos = '\0';
}
strcat(filename, ".uco");
if (!feof(fi)) {
s[strlen(s) - 1] = 0;
printf("Writing function: %s... ", s);
FILE* fi2 = fopen(filename, "rb");
if (fi2 == nullptr) {
printf("Can't open file %s\n", filename);
exit(0);
}
while (!feof(fi2)) {
const unsigned c = fgetc(fi2);
if (!feof(fi2)) {
fputc(c, fo);
}
}
fclose(fi2);
printf("done\n");
}
}
exit(0);
}
int main(int argc, char* argv[]) {
printf("Wody's Rip v0.005\nCopyright (c) 1999 Wody Dragon (a.k.a. Wouter "
"Dijkslag)\n");
if (argc < 2 || (!strcasecmp(argv[1], "put") && argc != 3)) {
printf("Syntax: rip <number>\tGets function <number> out of usecode "
"(and"
" index)\n\trip all\t\tGets all functions out of usecode (and "
"index)\n"
"\trip glue\tRecreate usecode file (needs all functions)\n"
"\trip index\tOnly get index\n\trip put <nr>\tInserts function"
" <nr> into the usecode file\n");
exit(0);
}
constexpr const unsigned all_functions
= std::numeric_limits<unsigned>::max();
constexpr const unsigned only_index
= std::numeric_limits<unsigned>::max() - 1u;
unsigned number;
bool put = false;
if (!strcasecmp(argv[1], "all")) {
number = all_functions;
} else if (!strcasecmp(argv[1], "glue")) {
rebuild(); // note: this doesn't return
} else if (!strcasecmp(argv[1], "index")) {
number = only_index;
} else if (!strcasecmp(argv[1], "put")) {
sscanf(argv[2], "%x", &number);
put = true;
} else {
sscanf(argv[1], "%x", &number);
}
FILE* fi = fopen("usecode", "rb+");
if (fi == nullptr) {
printf("Can't open usecode file.\n");
exit(0);
}
FILE* fo2 = fopen("index", "w");
if (fo2 == nullptr) {
printf("Can't create index file.\n");
exit(0);
}
while (true) {
unsigned short fn;
if (fread(&fn, 2, 1, fi) != 1) {
break;
}
unsigned fs;
bool extended;
if (fn == 0xFFFF) {
extended = true;
size_t err = fread(&fn, 2, 1, fi);
assert(err == 1);
err = fread(&fs, 4, 1, fi);
assert(err == 1);
} else {
extended = false;
unsigned short temp;
const size_t err = fread(&temp, 2, 1, fi);
assert(err == 1);
fs = temp;
}
char s[10];
char filename[18];
if (number == all_functions || number == only_index || number == fn) {
snprintf(s, sizeof(s), "%04X", fn);
strcpy(filename, s);
strcat(filename, ".uco");
fprintf(fo2, "%s\n", s);
}
if (number == all_functions || number == fn) {
if (!put) {
printf("Writing function: %s... ", s);
FILE* fo = fopen(filename, "wb");
if (fo == nullptr) {
printf("Can't open file %s\n", filename);
exit(0);
}
if (extended) {
unsigned short temp;
temp = 0xFFFF;
fwrite(&temp, 2, 1, fo);
fwrite(&fn, 2, 1, fo);
fwrite(&fs, 4, 1, fo);
} else {
fwrite(&fn, 2, 1, fo);
unsigned short temp = fs;
fwrite(&temp, 2, 1, fo);
}
for (unsigned i = 0; i < fs; i++) {
fputc(fgetc(fi), fo);
}
fclose(fo);
printf("done\n");
} else {
printf("Reading function: %s... ", s);
FILE* fo = fopen(filename, "rb");
if (fo == nullptr) {
printf("Can't open file %s\n", filename);
exit(0);
}
unsigned short fnc;
size_t err = fread(&fnc, 2, 1, fo);
assert(err == 1);
unsigned fsc;
if (fnc == 0xFFFF) {
if (extended == 0) {
printf("Wrong header (u7) in object\n");
exit(0);
}
err = fread(&fnc, 2, 1, fo);
assert(err == 1);
err = fread(&fsc, 4, 1, fo);
assert(err == 1);
} else {
if (extended == 1) {
printf("Wrong header (extended) in object\n");
exit(0);
}
unsigned short temp;
err = fread(&temp, 2, 1, fo);
assert(err == 1);
fsc = temp;
}
if (fnc != fn) {
printf("Wrong function in object\n");
exit(0);
}
if (fsc != fs) {
printf("Wrong size in object\n");
exit(0);
}
fseek(fi, ftell(fi), SEEK_SET); /* These two fseeks force my */
for (unsigned i = 0; i < fs;
i++) { /* Borland C++ 5.02 to read */
fputc(fgetc(fo), fi); /* write. Without them they */
}
fclose(fo); /* don't work as I think */
fseek(fi, ftell(fi), SEEK_SET); /* they should (the writing */
printf("done\n"); /* doesn't work) */
}
} else { /* Skip function */
fseek(fi, fs, SEEK_CUR);
}
}
fclose(fi);
fclose(fo2);
printf("All done\n");
return 0;
}
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