cosmopolitan/examples/stat.c

#if 0
/*─────────────────────────────────────────────────────────────────╗
│ To the extent possible under law, Justine Tunney has waived      │
│ all copyright and related or neighboring rights to this file,    │
│ as it is written in the following disclaimers:                   │
│   • http://unlicense.org/                                        │
│   • http://creativecommons.org/publicdomain/zero/1.0/            │
╚─────────────────────────────────────────────────────────────────*/
#endif
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/errno.h"
#include "libc/fmt/fmt.h"
#include "libc/log/check.h"
#include "libc/log/log.h"
#include "libc/runtime/gc.h"
#include "libc/stdio/stdio.h"
#include "libc/x/x.h"

/**
 * @fileoverview File metadata viewer.
 *
 * This demonstrates the more powerful aspects of the printf() DSL.
 */

void PrintFileMetadata(const char *pathname, struct stat *st) {
  printf("\n%s:", pathname);
  CHECK_NE(-1, stat(pathname, st));
  printf("\n"
         "%-32s%,ld\n"
         "%-32s%,ld\n"
         "%-32s%#lx\n"
         "%-32s%#lx\n"
         "%-32s%ld\n"
         "%-32s%#o\n"
         "%-32s%d\n"
         "%-32s%d\n"
         "%-32s%d\n"
         "%-32s%d\n"
         "%-32s%ld\n"
         "%-32s%ld\n"
         "%-32s%s\n"
         "%-32s%s\n"
         "%-32s%s\n"
         "%-32s%s\n",
         "bytes in file", st->st_size, "physical bytes", st->st_blocks * 512,
         "device id w/ file", st->st_dev, "inode", st->st_ino,
         "hard link count", st->st_nlink, "mode / permissions", st->st_mode,
         "owner id", st->st_uid, "group id", st->st_gid, "flags", st->st_flags,
         "gen", st->st_gen, "device id (if special)", st->st_rdev, "block size",
         st->st_blksize, "access time", _gc(xiso8601(&st->st_atim)),
         "modified time", _gc(xiso8601(&st->st_mtim)), "c[omplicated]time",
         _gc(xiso8601(&st->st_ctim)), "birthtime",
         _gc(xiso8601(&st->st_birthtim)));
}

int main(int argc, char *argv[]) {
  size_t i;
  struct stat st;
  for (i = 1; i < argc; ++i) {
    PrintFileMetadata(argv[i], &st);
  }
  return 0;
}