我必须知道文件夹中某些文件的修改日期。它有效,但不适用于所有类型的文件。例如,它适用于 .c、.txt,但不适用于其他类型,如 .mp4、.jpg 和 .mp3(我正在创建的应用程序通常必须适用于多媒体文件)。它打印“无法显示时间。”,所以我想问题出在 stat() 上。谢谢。
这是代码:
#include <stdio.h>
#include <stdlib.h>
#include <dirent.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
char parola[12]="", hash[32]="", esadecimale[1000]="", system3[100]="./md5 ";
int i, len, len2;
int bytes;
char cwd[1024];
int main(void)
{
char t[100] = "";
struct stat b;
DIR *dp;
char destinationFolder[100] = "/Users/mattiazeni/Desktop/Prova/"; //Me la passa da sopra
struct dirent *dir_p;
dp = opendir(destinationFolder);
if ( dp == NULL ) exit(1);
len = strlen(destinationFolder);
for (i=0;i<len;i++) {
system3[i+6]=destinationFolder[i];
}
while( ( dir_p = readdir(dp) ) != NULL ) {
if (dir_p -> d_name[0] != '.') {
//printf("%s\n", dir_p -> d_name);
len2 = strlen(dir_p -> d_name);
for (i=0;i<len2;i++) {
if (dir_p -> d_name[i] == ' '){ //Mi serve per correggere i nomi dei file con spazi
system3[i+len+6]='\\';
}
else system3[i+len+6]=dir_p -> d_name[i];
}
system(system3); //Passa il valore a md5 che calcola l'hash e lo stampa nel file che ci serve insieme al persorso/nome del file
FILE *fp;
if((fp=fopen("userDatabase.txt", "ab"))==NULL) {
printf("Error while opening the file..\n");
fclose (fp);
}
else {
if (!stat(dir_p -> d_name, &b)) {
strftime(t, 100, "%d/%m/%Y %H:%M:%S", localtime( &b.st_mtime)); //C'è ancora qualche errore!!
fprintf(fp, "%s", t);
}
else {
perror(0);
fprintf(fp, "error");
}
fprintf(fp, " initialized");
fprintf(fp, "\n");
}
fclose (fp);
for (i=len+6;i<len+6+len2;i++) {
system3[i]=' ';
}
}
}
closedir(dp);
return 0;
}