fileinfo.c

unix linux 编程实践源代码

/* statinfo.c - demonstrates using stat() to obtain
 *              file information.
 *            - some members are just numbers...
 */
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>

void show_stat_info(char *, struct stat *);

int main(int ac, char *av[])
{
    struct stat info;        /* buffer for file info */

    if (ac>1)
        if( stat(av[1], &info) != -1 ){
            show_stat_info( av[1], &info );
            return 0;
        }
        else
            perror(av[1]);  /* report stat() errors  */
    return 1;
}
void show_stat_info(char *fname, struct stat *buf)
/*
 * displays some info from stat in a name=value format
 */
{
    printf("   mode: %o\n", buf->st_mode);         /* type + mode */
    printf("  links: %d\n", buf->st_nlink);        /* # links     */
    printf("   user: %d\n", buf->st_uid);          /* user id     */
    printf("  group: %d\n", buf->st_gid);          /* group id    */
    printf("   size: %d\n", buf->st_size);         /* file size   */
    printf("modtime: %d\n", buf->st_mtime);        /* modified    */
    printf("   name: %s\n", fname );               /* filename    */
}