#include <stdio.h> #include <fcntl.h> #include <sys/stat.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); }