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- Python static hello world now 1.8mb
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- Make memcpy/memmove/memcmp/bcmp/etc. faster
- Add Mersenne Twister and Vigna to LIBC_RAND
- Provide privileged __printf() for error code
- Fix zipos opendir() so that it reports ENOTDIR
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- Pin function trace indent depth to that of caller
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- Differentiate stack overflow on crash in MODE=dbg
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100 lines
3.2 KiB
C
100 lines
3.2 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/calls.h"
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#include "libc/calls/struct/stat.h"
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#include "libc/errno.h"
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#include "libc/fmt/conv.h"
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#include "libc/fmt/fmt.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/runtime/gc.h"
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#include "libc/stdio/stdio.h"
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#include "libc/sysv/consts/s.h"
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#include "libc/x/x.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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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, "group id",
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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)), "modified time",
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_gc(xiso8601(&st->st_mtim)), "c[omplicated]time",
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_gc(xiso8601(&st->st_ctim)), "birthtime",
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_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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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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