Function fopen

Common/Uncompress.cpp:133–155

If the specified file is compressed, return a pipe that * uncompresses it. */

 * uncompresses it.
 */
FILE *fopen(const char *path, const char *mode)
{
	static fopen_t real_fopen;
	if (real_fopen == NULL)
		real_fopen = (fopen_t)dlsym(RTLD_NEXT, "fopen");
	if (real_fopen == NULL) {
		fprintf(stderr, "error: dlsym fopen: %s\n", dlerror());
		exit(EXIT_FAILURE);
	}

	// open a web address
	if (wgetExec(path) != NULL)
		return funcompress(path);
	
	// to check if the file exists, we need to attempt to open it
	FILE* stream = real_fopen(path, mode);
	if (string(mode) != "r" || !stream || zcatExec(path) == NULL)
		return stream;
	else {
		fclose(stream);
		return funcompress(path);
	}
}

/** If the specified file is compressed, return a pipe that
 * uncompresses it.