我正在研究POSIX C學習練習,它涉及遞歸列出指定目錄中的文件/文件夾。該程序接受一個或多個目錄的參數。我可以列出初始目錄的內容,但是遞歸存在問題。我在遞歸函數調用的參數中傳遞的方式有問題嗎?Unix c程序遞歸列出目錄
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#include <string.h>
void listdir(char *argv[])
{
DIR *mydirhandle;
struct dirent *mydirent;
struct stat statinfo;
int n = 1;
while(argv[n] != NULL)
{
if((mydirhandle = opendir(argv[n])) == NULL)
{
perror("opendir");
exit(1);
}
printf("%s/\n", argv[n]);
while((mydirent = readdir(mydirhandle)) != NULL)
{
if((strcmp(mydirent->d_name, ".") == 0) || (strcmp(mydirent->d_name, "..") == 0))
{
continue;
}
else
{
printf("\t%s\n", mydirent->d_name);
//check if next entry is a directory
if(mydirent->d_type == DT_DIR)
{
//is current directory being passed correctly here?
listdir(mydirent->d_name);
}
}
}
n++;
closedir(mydirhandle);
}
}
int main(int argc, char *argv[])
{
if(argc < 2)
{
printf("usage: %s <directory>\n", argv[0]);
return 0;
}
listdir(argv);
return 0;
}