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Add an lstat() syscall and use it to make "ls" nicer.

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This commit is contained in:
Andreas Kling 2018-10-24 13:19:36 +02:00
parent bca4b71bfa
commit 5f36a5f22e
10 changed files with 118 additions and 2 deletions
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44
Userland/ls.cpp
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@ -9,9 +9,51 @@ int main(int c, char** v)
printf("opendir failed :(\n");
return 1;
}
char pathbuf[256];
while (auto* de = readdir(dirp)) {
printf("%s\n", de->d_name);
sprintf(pathbuf, "/%s", de->d_name);
stat st;
int rc = lstat(pathbuf, &st);
if (rc == -1) {
printf("Failed to stat '%s'\n", pathbuf);
return 2;
}
if (S_ISDIR(st.st_mode))
printf("d");
else if (S_ISLNK(st.st_mode))
printf("l");
else if (S_ISBLK(st.st_mode))
printf("b");
else if (S_ISCHR(st.st_mode))
printf("c");
else if (S_ISFIFO(st.st_mode))
printf("f");
else if (S_ISREG(st.st_mode))
printf("-");
else
printf("?");
printf("%c%c%c%c%c%c%c%c",
st.st_mode & S_IRUSR ? 'r' : '-',
st.st_mode & S_IWUSR ? 'w' : '-',
st.st_mode & S_IXUSR ? 'x' : '-',
st.st_mode & S_IRGRP ? 'r' : '-',
st.st_mode & S_IWGRP ? 'w' : '-',
st.st_mode & S_IXGRP ? 'x' : '-',
st.st_mode & S_IROTH ? 'r' : '-',
st.st_mode & S_IWOTH ? 'w' : '-'
);
if (st.st_mode & S_ISVTX)
printf("t");
else
printf("%c", st.st_mode & S_IXOTH ? 'x' : '-');
printf(" i:%x ", de->d_ino);
printf(" %x ", st.st_size);
printf("%s%c", de->d_name, S_ISDIR(st.st_mode) ? '/' : ' ');
printf("\n");
}
return 0;
}