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#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
void print_struct_stat(char *msg, struct stat *s)
{
printf("%s\n", msg);
/* The casts are because glibc thinks it's cool */
printf("device : 0x%llx\n",(long long)s->st_dev);
printf("inode : %lld\n", (long long)s->st_ino);
printf("mode : 0x%llx\n",(long long)s->st_mode);
printf("nlink : %lld\n", (long long)s->st_nlink);
printf("uid : %lld\n", (long long)s->st_uid);
printf("gid : %lld\n", (long long)s->st_gid);
printf("rdev : 0x%llx\n",(long long)s->st_rdev);
printf("size : %lld\n", (long long)s->st_size);
printf("blksize : %lld\n", (long long)s->st_blksize);
printf("blocks : %lld\n", (long long)s->st_blocks);
printf("atime : %lld\n", (long long)s->st_atime);
printf("mtime : %lld\n", (long long)s->st_mtime);
printf("ctime : %lld\n", (long long)s->st_ctime);
}
int main(int argc,char **argv)
{
int fd, ret;
char *file;
struct stat s;
if (argc < 2) {
fprintf(stderr, "Usage: stat FILE\n");
exit(1);
}
file = argv[1];
memset(&s, 0, sizeof(struct stat));
ret = stat(file, &s);
if(ret<0){
perror("stat");
exit(1);
}
print_struct_stat("\nTesting stat:", &s);
memset(&s, 0, sizeof(struct stat));
ret = lstat(file, &s);
if(ret<0){
perror("lstat");
exit(1);
}
print_struct_stat("\nTesting lstat:", &s);
fd = open(file, O_RDONLY);
if(fd<0){
perror("open");
exit(1);
}
memset(&s, 0, sizeof(struct stat));
ret = fstat(fd,&s);
if(ret<0){
perror("fstat");
exit(1);
}
print_struct_stat("\nTesting fstat:", &s);
exit(0);
}
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