ladybird/Userland/touch.cpp

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#include <stdio.h>
#include <errno.h>
#include <utime.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
static bool file_exists(const char* path)
{
struct stat st;
int rc = stat(path, &st);
if (rc < 0) {
if (errno == ENOENT)
return false;
}
if (rc == 0) {
return true;
}
perror("stat");
exit(1);
}
int main(int argc, char** argv)
{
if (argc != 2) {
fprintf(stderr, "usage: touch <path>\n");
return 1;
}
if (file_exists(argv[1])) {
int rc = utime(argv[1], nullptr);
if (rc < 0)
perror("utime");
} else {
int fd = open(argv[1], O_CREAT, 0010644);
if (fd < 0) {
perror("open");
return 1;
}
int rc = close(fd);
if (rc < 0) {
perror("close");
return 1;
}
}
return 0;
}