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dirinspect.c
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dirinspect.c
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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/stat.h>
int main(int argc, char* argv[]){
char* dirname;
DIR* dir;
if(argc == 1) dirname = ".";
else dirname = argv[1];
if ((dir = opendir(dirname)) == NULL) {
perror("opendir");
exit(EXIT_FAILURE);
}
struct dirent * entry;
while((entry = readdir(dir)) != 0){
struct stat sb;
char type;
char full_path[1024];
snprintf(full_path, 1024, "%s/%s", dirname, entry->d_name);
if (stat(full_path, &sb) == -1) {
perror("stat");
continue;
}
if (S_ISREG(sb.st_mode))
type = '-';
else if (S_ISDIR(sb.st_mode))
type = 'd';
else if (S_ISLNK(sb.st_mode))
type = 'l';
else if (S_ISFIFO(sb.st_mode))
type = 'p';
else if (S_ISSOCK(sb.st_mode))
type = 's';
else if (S_ISCHR(sb.st_mode))
type = 'c';
else if (S_ISBLK(sb.st_mode))
type = 'b';
else
type = '?';
printf("%10ld %c %s\n", (long) sb.st_ino, type, entry->d_name);
}
closedir(dir);
return 0;
}