StudyingUnixInterface/4/fileDirectory/stat.c
2020-12-07 12:17:01 +08:00

46 lines
833 B
C

#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
int printStat(struct stat buf){
printf("DEV: %ld UID: %d SIZE: %ld BLOCKS: %ld\n", buf.st_dev, buf.st_uid, buf.st_size, buf.st_blocks);
printf("MODE: %d INO: %ld BLKSIZE: %ld GID: %d\n", buf.st_mode, buf.st_ino, buf.st_blksize, buf.st_gid);
if(S_ISREG(buf.st_mode)){
printf("a regular file\n");
}
else if(S_ISDIR(buf.st_mode)) {
printf("a directory\n");
}
}
int main(void){
struct stat buf;
if(stat("./stat.c", &buf) == -1){
printf("stat error\n");
return -1;
}
printStat(buf);
int fd = open(".", O_RDONLY);
if(fd == -1){
printf("open O_RDONLY failed\n");
return -1;
}
if(fstat(fd, &buf) < 0){
printf("fstat error\n");
return -1;
}
printStat(buf);
close(fd);
return 0;
}