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ls: Use command-line arguments

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This commit is contained in:
apio 2022-10-26 20:30:22 +02:00
parent e1f58c0163
commit 2512acc716
1 changed files with 12 additions and 3 deletions
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15
apps/src/ls.c
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@ -1,22 +1,31 @@
#include <dirent.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdio.h>
#include <unistd.h>
int main()
int main(int argc, char** argv)
{
DIR* dp = opendir("/bin");
const char* pathname;
if (argc == 1) pathname = "/";
else
pathname = argv[1];
DIR* dp = opendir(pathname);
if (!dp)
{
perror("opendir");
return 1;
}
bool first_ent = true;
do {
struct dirent* ent = readdir(dp);
if (!ent) break;
printf("%s\n", ent->d_name);
printf(first_ent ? "%s" : " %s", ent->d_name);
first_ent = false;
} while (1);
printf("\n");
closedir(dp);
return 0;
}