int gu_decompress(const char *filename_in, const char *filename_out)
{
FILE *f = NULL;
void *dst = NULL;
long size = 0;
int ret = 0;
if (0 != (ret = gu_decompress_file_to_mem(filename_in, &dst, &size))) {
return ret;
}
if (NULL == (f = fopen(filename_out, "wb"))) {
free(dst);
return 1;
}
fwrite(dst, size, 1, f);
free(dst);
fclose(f);
return 0;
}
int h3m_get_filename_from_gm1(const char *filename_gm1, char *filename_h3m,
size_t n)
{
unsigned char *buf = NULL;
long buf_size = 0;
size_t len = 0;
unsigned char *loc = NULL;
if (0 != gu_decompress_file_to_mem(filename_gm1, (void **)&buf, &buf_size)) {
return 1;
}
if (NULL == (loc = memmem(buf, (size_t)buf_size, (uint8_t *)".h3m", sizeof(".h3m") - 1))) {
gu_free(buf);
return 2;
}
while (((isalnum(*(loc - 1))) || (isspace(*(loc - 1)))
|| (ispunct(*(loc - 1)))
|| ('(' == *(loc - 1)) || ('(' == *(loc - 1))
|| ('_' == *(loc - 1)))
&& loc > buf) {
--loc;
}
if (n <= (len = strlen((char *)loc))) {
gu_free(buf);
return 3;
}
strcpy(filename_h3m, (char *)loc);
gu_free(buf);
return 0;
}
