mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-23 05:42:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Initial import

Browse source
This commit is contained in:
Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
14915 changed files with 590219 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

28
tool/decode/unhex.c Normal file
View file

@ -0,0 +1,28 @@
/*─────────────────────────────────────────────────────────────────╗
│ 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/ │
╚─────────────────────────────────────────────────────────────────*/
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
/**
* @fileoverview Hex to binary converter program.
* Non-hex bytes are ignored. If you've got imposter syndrome you could
* call this a compiler and start coding in hex.
*/
int main() {
int o, t = -1;
while (0 <= (o = getchar()) && o <= 255) {
if (!isxdigit(o)) continue;
int h = hextoint(o);
if (t != -1) putchar(t * 16 + h), h = -1;
t = h;
}
if (ferror(stdout)) return 1;
if (t != -1) return 2;
return 0;
}