Copy/Set the 'Date Added' of files and folders in macOS

cpda.c

//Simple tool to copy the 'Date Added' on macOS.
//based on code witten by Andrew Neitsch <andrew@neitsch.ca> and an hint of Ken Thomases
//<https://stackoverflow.com/q/39685113/>
//compile using "cc -o cpda cpda.c"
//tested on macOS 10.13 and 12 on APFS
//test with "mdls -name kMDItemDateAdded ..." <https://stackoverflow.com/a/71264110/394431>
//use with "cp -a ..." and "find -exec ..."

#include <stdlib.h>
#include <string.h>
#include <sys/attr.h>
#include <unistd.h>

/*
 * Get kMDItemDateAdded of path.
 *
 * Returns:
 *   • 0 on success
 *   • 1 if a system call failed: check errno
 *   • 2 if something else went wrong
 */
int get_date_added(const char* path, struct timespec * out) {
	attrgroup_t request_attrs = ATTR_CMN_RETURNED_ATTRS | ATTR_CMN_ADDEDTIME;

	struct attrlist request;
	memset(&request, 0, sizeof(request));
	request.bitmapcount = ATTR_BIT_MAP_COUNT;
	request.commonattr = request_attrs;

	typedef struct {
		u_int32_t length;
		attribute_set_t returned;
		struct timespec added;
	} __attribute__((aligned(4), packed)) response_buf_t;

	response_buf_t response;

	int err = getattrlist(path, &request, &response, sizeof(response), 0);
	if (err != 0) {
		return 1;
	}
	if (response.length != sizeof(response)) {
		// Need a different-sized buffer; but provided one of exactly required
		// size?!
		return 2;
	}
	if (response.returned.commonattr != request_attrs) {
		// Didn’t get back all requested common attributes
		return 2;
	}

	out->tv_sec = response.added.tv_sec;
	out->tv_nsec = response.added.tv_nsec;

	return 0;
}

/*
 * Set kMDItemDateAdded of path.
 *
 * Returns:
 *   • 0 on success
 *   • 1 if a system call failed: check errno
 */
int set_date_added(const char* path, struct timespec in) {
	attrgroup_t request_attrs = ATTR_CMN_ADDEDTIME;

	struct attrlist request;
	memset(&request, 0, sizeof(request));
	request.bitmapcount = ATTR_BIT_MAP_COUNT;
	request.commonattr = request_attrs;

	typedef struct {
		struct timespec added;
	} __attribute__((aligned(4), packed)) request_buf_t;

	request_buf_t request_buf;
	request_buf.added.tv_sec = in.tv_sec;
	request_buf.added.tv_nsec = in.tv_nsec;

	int err = setattrlist(path, &request, &request_buf, sizeof(request_buf), 0);
	if (err != 0) {
		return 1;
	}

	return 0;
}

#include <stdio.h>

/*
 *
 * Make it possible to call the code above from a simple cmd line tool
 * to copy the 'Date Added' from one file to another.
 *
 */

int main(int argc, char *argv[]) {
	if (argc != 3) {
		printf("Usage:\n%s source_path target_path\n\nCopy the kMDItemDateAdded from source_path to target_path.\n", argv[0]);
		return 64;
	}
	
	struct timespec t;
	int err;
	
	err = get_date_added(argv[1], &t);
	if (err != 0) {
		return err;
	}
	
	err = set_date_added(argv[2], t);
	if (err != 0) {
		return err;
	}
	
	return 0;
}

Can you help me transfer "set_date_added" func to swift code?

All I have at the moment is:

import Darwin

func setDateAdded(path: String, toDate date: Date) -> Bool {
    guard FileManager.default.fileExists(atPath: path) else { return false }
    
    var request = attrlist()
    request.bitmapcount = UInt16(ATTR_BIT_MAP_COUNT)
    request.commonattr  = attrgroup_t(ATTR_CMN_ADDEDTIME)
    
    struct request_buf_t {
        var added: timespec
    }
    
    var request_buf = request_buf_t(added: timespec(tv_sec: Int(date.timeIntervalSince1970), tv_nsec: 0) )
    
    let err = setattrlist(path, &request, &request_buf, MemoryLayout.size(ofValue: request_buf), 0)
    
    return err == 0
}

But it allways falls

Here in comments or by the URL:
https://stackoverflow.com/questions/78366352/change-kmditemdateadded-date-added-files-metadata-attribute-via-swift-cod