程序4-6 utime函数实例

//http://blog.chinaunix.net/uid-24549279-id-71355.html
/*
 ============================================================================
 Name        : test.c
 Author      : blank
 Version     :
 Copyright   : Your copyright notice
 Description : 程序4-6 utime函数实例
 ============================================================================
*/

#include <fcntl.h>
#include <utime.h>
#include <sys/stat.h>
#include "ourhdr.h"

int main(int argc, char *argv[])
{
    int             i, fd;
    struct stat     statbuf;
    struct utimbuf     timebuf;

    for (i=1; i<argc; i++){
        printf("argv[%d] = %s
", i, argv[i]);
        if (stat(argv[i], &statbuf) < 0){//fetch current times
            err_ret("%s: stat error", argv[1]);
            continue;
        }

        if ((fd = open(argv[1], O_RDWR|O_TRUNC)) < 0){
            err_ret("%s: open error", argv[1]);
            continue;
        }

        close(fd);
        timebuf.actime = statbuf.st_atim.tv_sec;
        timebuf.modtime = statbuf.st_mtim.tv_sec;
        if (utime(argv[i], &timebuf) < 0){
            // retset time
            err_ret("%s: utime error", argv[i]);
            continue;
        }
    }
}