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48 lines
2.4 KiB
C
48 lines
2.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 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/macros.h"
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#include "libc/mem/mem.h"
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#include "libc/stdio/append.h"
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#include "libc/stdio/hex.internal.h"
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#include "libc/stdio/stdio.h"
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/**
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* @fileoverview Hex String Literal Converter, e.g.
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*
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* $ echo hello | o/tool/viz/dumphexc
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* "\
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* \x68\x65\x6c\x6c\x6f\x0a"
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*/
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int main(int argc, char *argv[]) {
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char *p;
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size_t n, g;
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char *b = 0;
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char buf[512];
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while ((g = fread(buf, 1, sizeof(buf), stdin))) {
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appendd(&b, buf, g);
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}
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if (!ferror(stdin)) {
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p = DumpHexc(b, appendz(b).i, &n);
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fwrite(p, 1, n, stdout);
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free(p);
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}
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printf("\n");
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return ferror(stdin) || ferror(stdout) ? 1 : 0;
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}
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