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/*
* Copyright (c) 2026, Chloe M.
* Provided under the BSD-3 clause.
*/
#define _DEFAULT_SOURCE
#include <unistd.h>
#include <stdio.h>
#include <stdint.h>
#include <stddef.h>
#include <dirent.h>
#include <string.h>
/* Version conversion macros */
#define VERSION_U16(MAJOR, MINOR) \
(((MINOR) << 8) | (MAJOR))
#define VERSION_MAJOR(VERSION) \
((VERSION) & 0xFF)
#define VERSION_MINOR(VERSION) \
(((VERSION) >> 8) & 0xFF)
/*
* Software version
*
* XXX: We encode it as a U16 so that we may bundle it
* with the file data as binary.
*/
#define RDAR_VERSION VERSION_U16(1, 0) /* v1.0 */
/* Fallback path if '-o' is not specified */
#define FALLBACK_OUTPUT_PATH "out.rdar"
/* Globals */
static const char *input_dir = NULL;
static const char *output_path = NULL;
static void
help(void)
{
printf("usage: ./rdar <... flags>\n");
printf("[-h] Display this help menu\n");
printf("[-v] Display the program version\n");
printf("[-i] Input directory to pack\n");
printf("[-o] Output path for archive file\n");
}
static void
version(void)
{
uint16_t Major, Minor;
Major = VERSION_MAJOR(RDAR_VERSION);
Minor = VERSION_MINOR(RDAR_VERSION);
printf("Version v%d.%d\n", Major, Minor);
}
static void
recurse_dir(const char *dirpath)
{
DIR *dir;
struct dirent *dirent;
char pathbuf[264];
dir = opendir(dirpath);
if (dir == NULL) {
printf("fatal: failed to open '%s'\n", input_dir);
perror("opendir");
return;
}
while ((dirent = readdir(dir)) != NULL) {
if (dirent->d_name[0] == '.') {
continue;
}
switch (dirent->d_type) {
case DT_REG:
snprintf(pathbuf, sizeof(pathbuf), "%s/%s", dirpath, dirent->d_name);
printf("[f] %s\n", pathbuf);
break;
case DT_DIR:
snprintf(pathbuf, sizeof(pathbuf), "%s/%s", dirpath, dirent->d_name);
printf("[d] %s\n", pathbuf);
recurse_dir(pathbuf);
break;
}
}
closedir(dir);
}
int
main(int argc, char **argv)
{
int opt;
if (argc < 2) {
printf("fatal: too few arguments\n");
help();
return -1;
}
while ((opt = getopt(argc, argv, "hvi:o:")) != -1) {
switch (opt) {
case 'h':
help();
return -1;
case 'v':
version();
return -1;
case 'i':
input_dir = strdup(optarg);
if (input_dir == NULL) {
printf("fatal: failed to allocate input_dir\n");
return -1;
}
break;
case 'o':
output_path = strdup(optarg);
if (output_path == NULL) {
printf("fatal: failed to allocate output dir\n");
return -1;
}
break;
}
}
if (input_dir == NULL) {
printf("fatal: input path not specified\n");
help();
return -1;
}
if (output_path == NULL) {
output_path = FALLBACK_OUTPUT_PATH;
}
recurse_dir(input_dir);
return 0;
}
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