/
ls_R.c
140 lines (118 loc) · 3.2 KB
/
ls_R.c
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# include <stdio.h>
# include <sys/types.h>
# include <unistd.h>
# include <stdlib.h>
# include <sys/stat.h>
# include <limits.h>
# include <dirent.h>
void display_dir(char *path);
void my_err(const char * err_string, int line)
{
fprintf(stderr, "line : %d", line);
perror(err_string);
exit(-1);
}
int main(int argc, char ** argv)
{
// printf("xiao\n");
char path[PATH_MAX+1];
if( argc == 1 )
{
// strcpy(path, "./");
if( getcwd(path, 512) == -1)
{
my_err("getcwd", __LINE__);
}
strcat( path, "/" );
// printf(" %s\n",path);
// path[9] = '\0';
// printf("sfaaa\n");
display_dir(path);
}
return 0;
}
void display_dir( char * path )
{
int i, j,count=0;
DIR * dir;
struct stat buf;
struct dirent * ptr;
char filenames[256][PATH_MAX+1];
char mulunames[256][PATH_MAX+1];
char str[PATH_MAX+1];
// strcpy( mulunames[], path );
if( ( dir = opendir( path )) == -1 )
{
my_err("opendir", __LINE__);
}
i = 0;
printf("%s\n",path);
while( (ptr = readdir(dir)) != NULL)
{
// printf("xingbuxing\n");
// strcpy( filenames[count], ptr->d_name );
// filenames[count][strlen( ptr->d_name )] = '\0';
// if( (strcmp( ptr->d_name, '.' ) != 0) && (strcmp( ptr->d_name , "..")!= 0 ))
// {
char filename[200];
strcpy(filename, path);
strcat(filename, ptr->d_name);
// printf("-=-%s--=%s+++\n", ptr->d_name, filename);
if( stat(filename, &buf) ==-1)
// )
{
my_err("stat", __LINE__);
}
// printf("sfd\n");
if( S_ISDIR( buf.st_mode ) && (strcmp( ptr->d_name, "." ) !=0) && ( strcmp( ptr->d_name , "..")!=0) )
{
mulunames[count][strlen(filename)] = '\0';
// strcat( mulunames[count],'/' );
if( filename[strlen( filename ) -1] != '/' )
{
// puts(filename);
strcat(filename, "/");
// printf("!!!! %s\n",ptr->d_name)a
// puts(filename);
}
else
{
filename[ strlen( filename ) ] = '\0';
}
strcat( mulunames[count],filename );
// strcat( mulunames[count], ptr->d_name );
mulunames[count][strlen( mulunames[count])] = '\0';
// display_dir( mulunames[count] );
// printf(" $$$ %s\n", mulunames[count]);
count++;
// printf("\n");
}
else{
strcpy( filenames[i], ptr->d_name );
filenames[i][strlen( ptr->d_name )] = '\0';
// i++;
printf(" %s",filenames[i]);
i++;
}
// }
}
// closedir(dir);
// printf(" %s \n", mulunames[0]);
//printf(" %s\n", path);
/*
for( j = 0; j< i; j++ )
{
printf(" %s", filenames[j]);
}
*/
printf("\n");
if( count != 0 )
{
// printf("sf\n");
for( j = 0; j<count; ++j )
{
// printf("!! %s!!\n", mulunames[j]);
display_dir( mulunames[j] );
}
}
}