扫描目录以查找c中的文件 [英] scan a directory to find files in c

问题描述

I'm trying to create a function in c which scans all my path C: temp (Windows) to search for a file that I pass (eg test.txt) and each time it finds one return the path to steps another function to write something in the bottom of this file. I managed to do the function that writes to the file but can not figure out how to do that scans the folder and pass the address of the file found.

解决方案

#include <unistd.h>
#include <stdio.h>
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>
#include <stdlib.h>
void printdir(char *dir, int depth)
{
    DIR *dp;
    struct dirent *entry;
    struct stat statbuf;
    if((dp = opendir(dir)) == NULL) {
        fprintf(stderr,"cannot open directory: %s
", dir);
        return;
    }
    chdir(dir);
    while((entry = readdir(dp)) != NULL) {
        lstat(entry->d_name,&statbuf);
        if(S_ISDIR(statbuf.st_mode)) {
            /* Found a directory, but ignore . and .. */
            if(strcmp(".",entry->d_name) == 0 ||
                strcmp("..",entry->d_name) == 0)
                continue;
            printf("%*s%s/
",depth,"",entry->d_name);
            /* Recurse at a new indent level */
            printdir(entry->d_name,depth+4);
        }
        else printf("%*s%s
",depth,"",entry->d_name);
    }
    chdir("..");
    closedir(dp);
}

int main()
{
    printf("Directory scan of /home:
");
    printdir("/home",0);
    printf("done.
");
    exit(0);
}

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