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od: For the 'c' type, format non-printable charecters as octal

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This is the behavior specified by POSIX.
This commit is contained in:
Michael Forney 2018-02-25 22:56:07 -08:00
parent f83c468b55
commit d098ac4abc
1 changed files with 3 additions and 0 deletions
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3
od.c
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@ -1,4 +1,5 @@
/* See LICENSE file for copyright and license details. */ /* See LICENSE file for copyright and license details. */
#include <ctype.h>
#include <fcntl.h> #include <fcntl.h>
#include <stdint.h> #include <stdint.h>
#include <stdio.h> #include <stdio.h>
@ -69,6 +70,8 @@ printchunk(const unsigned char *s, unsigned char format, size_t len)
case 'c': case 'c':
if (strchr("\a\b\t\n\v\f\r\0", *s)) { if (strchr("\a\b\t\n\v\f\r\0", *s)) {
printf(" %3s", escdict[*s]); printf(" %3s", escdict[*s]);
} else if (!isprint(*s)) {
printf(" %3o", *s);
} else { } else {
printf(" %3c", *s); printf(" %3c", *s);
} }