程序4-6 utime函数实例

复制代码 1 //http://blog.chinaunix.net/uid-24549279-id-71355.html 2 /* 3 ============================================================================ 4 Name : test.c 5 Author : blank 6 Version : 7 Copyright : Your copyright notice 8 Description : 程序4-6 utime函数实例 9 ============================================================================ 10 */ 11 12 #include <fcntl.h> 13 #include <utime.h> 14 #include <sys/stat.h> 15 #include "ourhdr.h" 16 17 int main(int argc, char *argv[]) 18 { 19 int i, fd; 20 struct stat statbuf; 21 struct utimbuf timebuf; 22 23 for (i=1; i<argc; i++){ 24 printf("argv[%d] = %sn", i, argv[i]); 25 if (stat(argv[i], &statbuf) < 0){//fetch current times 26 err_ret("%s: stat error", argv[1]); 27 continue; 28 } 29 30 if ((fd = open(argv[1], O_RDWR|O_TRUNC)) < 0){ 31 err_ret("%s: open error", argv[1]); 32 continue; 33 } 34 35 close(fd); 36 timebuf.actime = statbuf.st_atim.tv_sec; 37 timebuf.modtime = statbuf.st_mtim.tv_sec; 38 if (utime(argv[i], &timebuf) < 0){ 39 // retset time 40 err_ret("%s: utime error", argv[i]); 41 continue; 42 } 43 } 44 }

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//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] = %sn", 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;
        }
    }
}