mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
b0df6c1fce
Cosmopolitan now supports 104 time zones. They're embedded inside any binary that links the localtime() function. Doing so adds about 100kb to the binary size. This change also gets time zones working properly on Windows for the first time. It's not needed to have /etc/localtime exist on Windows, since we can get this information from WIN32. We're also now updated to the latest version of Paul Eggert's TZ library.
123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
#if 0
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/*─────────────────────────────────────────────────────────────────╗
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│ To the extent possible under law, Justine Tunney has waived │
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│ all copyright and related or neighboring rights to this file, │
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│ as it is written in the following disclaimers: │
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│ • http://unlicense.org/ │
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│ • http://creativecommons.org/publicdomain/zero/1.0/ │
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╚─────────────────────────────────────────────────────────────────*/
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#endif
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#include "libc/calls/struct/stat.h"
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#include "libc/assert.h"
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#include "libc/calls/calls.h"
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#include "libc/errno.h"
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#include "libc/fmt/conv.h"
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#include "libc/log/check.h"
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#include "libc/log/log.h"
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#include "libc/mem/gc.h"
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#include "libc/mem/mem.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/s.h"
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#include "libc/time.h"
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/**
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* @fileoverview File metadata viewer.
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*
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* This demonstrates the more powerful aspects of the printf() DSL.
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*/
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bool numeric;
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char *xiso8601(struct timespec ts) {
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struct tm tm;
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if (!localtime_r(&ts.tv_sec, &tm))
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return 0;
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int len = 128;
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char *res = malloc(len);
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char *ptr = res;
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char *end = res + len;
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if (!res)
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return 0;
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ptr += strftime(ptr, end - ptr, "%Y-%m-%d %H:%M:%S", &tm);
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ptr += snprintf(ptr, end - ptr, ".%09ld", ts.tv_nsec);
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ptr += strftime(ptr, end - ptr, "%z %Z", &tm);
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unassert(ptr + 1 <= end);
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return res;
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}
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const char *DescribeFileType(unsigned mode) {
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switch (mode & S_IFMT) {
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case S_IFIFO:
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return "S_IFIFO"; /* pipe */
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case S_IFCHR:
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return "S_IFCHR"; /* character device */
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case S_IFDIR:
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return "S_IFDIR"; /* directory */
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case S_IFBLK:
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return "S_IFBLK"; /* block device */
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case S_IFREG:
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return "S_IFREG"; /* regular file */
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case S_IFLNK:
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return "S_IFLNK"; /* symbolic link */
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case S_IFSOCK:
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return "S_IFSOCK"; /* socket */
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default:
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return "wut";
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}
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}
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void PrintFileMetadata(const char *pathname, struct stat *st) {
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int fd;
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printf("\n%s:", pathname);
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if (numeric) {
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fd = atoi(pathname);
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CHECK_NE(-1, fstat(fd, st), "fd=%d", fd);
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} else {
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CHECK_NE(-1, stat(pathname, st), "pathname=%s", pathname);
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}
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printf("\n"
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"%-32s%,ld\n"
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"%-32s%,ld\n"
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"%-32s%#lx\n"
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"%-32s%#lx\n"
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"%-32s%ld\n"
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"%-32s%#o (%s)\n"
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"%-32s%d\n"
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"%-32s%d\n"
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"%-32s%d\n"
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"%-32s%d\n"
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"%-32s%ld\n"
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"%-32s%ld\n"
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"%-32s%s\n"
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"%-32s%s\n"
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"%-32s%s\n"
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"%-32s%s\n",
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"bytes in file:", st->st_size, "physical bytes:", st->st_blocks * 512,
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"device id w/ file:", st->st_dev, "inode:", st->st_ino,
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"hard link count:", st->st_nlink, "mode / permissions:", st->st_mode,
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DescribeFileType(st->st_mode), "owner id:", st->st_uid,
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"group id:", st->st_gid, "flags:", st->st_flags, "gen:", st->st_gen,
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"device id (if special):", st->st_rdev, "block size:", st->st_blksize,
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"access time:", gc(xiso8601(st->st_atim)),
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"modified time:", gc(xiso8601(st->st_mtim)),
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"c[omplicated]time:", gc(xiso8601(st->st_ctim)),
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"[birthtime]:", gc(xiso8601(st->st_birthtim)));
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}
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int main(int argc, char *argv[]) {
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size_t i;
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struct stat st;
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if (argc <= 1) {
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PrintFileMetadata(".", &st);
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return 0;
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}
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for (i = 1; i < argc; ++i) {
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if (!strcmp(argv[i], "-n")) {
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numeric = true;
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} else {
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PrintFileMetadata(argv[i], &st);
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}
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}
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return 0;
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}
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