Improve stat

This commit is contained in:
K. Lange 2018-08-12 17:14:06 +09:00
parent 8fb1d23b53
commit ad8d87c081

View File

@ -1,34 +1,57 @@
/* This file is part of ToaruOS and is released under the terms /* vim: ts=4 sw=4 noexpandtab
* This file is part of ToaruOS and is released under the terms
* of the NCSA / University of Illinois License - see LICENSE.md * of the NCSA / University of Illinois License - see LICENSE.md
* Copyright (C) 2013 K. Lange * Copyright (C) 2013-2018 K. Lange
*/ *
/*
* stat * stat
* *
* Displays information on a file's inode. * Display file status.
*/ */
#include <stdio.h> #include <stdio.h>
#include <sys/stat.h>
#include <stdint.h> #include <stdint.h>
#include <string.h> #include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/time.h> #include <sys/time.h>
static void show_usage(int argc, char * argv[]) {
printf(
"stat - display file status\n"
"\n"
"usage: %s [-Lq] PATH\n"
"\n"
" -L \033[3mdereference symlinks\033[0m\n"
" -q \033[3mdon't print anything, just return 0 if file exists\033[0m\n"
" -? \033[3mshow this help text\033[0m\n"
"\n", argv[0]);
}
int main(int argc, char ** argv) { int main(int argc, char ** argv) {
int dereference = 0; int dereference = 0, quiet = 0;
if (argc < 2) { char * file;
fprintf(stderr,"%s: expected argument\n", argv[0]); int opt;
while ((opt = getopt(argc, argv, "?Lq")) != -1) {
switch (opt) {
case 'L':
dereference = 1;
break;
case 'q':
quiet = 1;
break;
case '?':
show_usage(argc,argv);
return 1;
}
}
if (optind >= argc) {
show_usage(argc, argv);
return 1; return 1;
} }
char * file = argv[1]; file = argv[optind];
if (argc > 2) {
if (!strcmp(argv[1],"-L")) {
dereference = 1;
}
file = argv[2];
}
struct stat _stat; struct stat _stat;
if (dereference) { if (dereference) {
@ -37,6 +60,8 @@ int main(int argc, char ** argv) {
if (lstat(file, &_stat) < 0) return 1; if (lstat(file, &_stat) < 0) return 1;
} }
if (quiet) return 0;
printf("0x%x bytes\n", (unsigned int)_stat.st_size); printf("0x%x bytes\n", (unsigned int)_stat.st_size);
if (S_ISDIR(_stat.st_mode)) { if (S_ISDIR(_stat.st_mode)) {