proot/tests/fchdir_getcwd.c

41 lines
663 B
C

#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
int main(int argc, char *argv[])
{
char path[PATH_MAX];
int status;
int fd;
if (argc < 2) {
fprintf(stderr, "missing argument\n");
exit(EXIT_FAILURE);
}
fd = open(argv[1], O_DIRECTORY);
if (fd < 0) {
perror("open()");
exit(EXIT_FAILURE);
}
status = fchdir(fd);
if (status < 0) {
perror("fchdir()");
exit(EXIT_FAILURE);
}
if (getcwd(path, PATH_MAX) == NULL) {
perror("getcwd()");
exit(EXIT_FAILURE);
}
printf("%s\n", get_current_dir_name());
exit(EXIT_SUCCESS);
}