50 lines
2.6 KiB
C
50 lines
2.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/calls/internal.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/o.h"
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int main(int argc, char *argv[]) {
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char *p;
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int i, j, rc, fd;
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char16_t glyphs[17] = {0};
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p = malloc(4096);
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fd = open(".", O_RDONLY | O_DIRECTORY | O_CLOEXEC, 0);
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if ((rc = getdents(fd, p, 4096)) != -1) {
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for (i = 0; i < ROUNDUP(rc, 16); ++i) {
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if (i % 16 == 0) printf("%08x ", i);
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if (i < rc) {
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glyphs[i % 16] = kCp437[p[i] & 0xff];
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printf("%02x ", p[i] & 0xff);
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} else {
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glyphs[i % 16] = u'\0';
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printf(" ");
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}
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if (i % 8 == 7) printf(" ");
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if (i % 16 == 15) printf("%hs\n", glyphs);
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}
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}
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close(fd);
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free(p);
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return 0;
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}
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