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add "-C" format to hexdump

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fixes bug #113 and satisfies a personal need at the same time.

output compares identically to util-linux version.  (with
exception of whitespace differences on last lines of output with
non-uniform length, which are neither fixed nor worsened by this
change.)
This commit is contained in:
Paul Fox 2005-11-28 21:06:00 +00:00
parent d957b9537e
commit 969af89797
2 changed files with 7 additions and 2 deletions
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3
include/usage.h
View File

@ -1087,13 +1087,14 @@
"daemon:x:1:1:daemon:/usr/sbin:/bin/sh\n"
#define hexdump_trivial_usage \
"[-[bcdefnosvx]] [OPTION] FILE"
"[-[bcCdefnosvx]] [OPTION] FILE"
#define hexdump_full_usage \
"The hexdump utility is a filter which displays the specified files,\n" \
"or the standard input, if no files are specified, in a user specified\n" \
"format\n" \
"\t-b\t\tOne-byte octal display\n" \
"\t-c\t\tOne-byte character display\n" \
"\t-C\t\tCanonical hex+ASCII, 16 bytes per line\n" \
"\t-d\t\tTwo-byte decimal display\n" \
"\t-e FORMAT STRING\n" \
"\t-f FORMAT FILE\n" \

6
util-linux/hexdump.c
View File

@ -57,7 +57,7 @@ static const char * const add_strings[] = {
static const char add_first[] = "\"%07.7_Ax\n\"";
static const char hexdump_opts[] = "bcdoxe:f:n:s:v";
static const char hexdump_opts[] = "bcdoxCe:f:n:s:v";
static const struct suffix_mult suffixes[] = {
{"b", 512 },
@ -80,6 +80,10 @@ int hexdump_main(int argc, char **argv)
if ((p - hexdump_opts) < 5) {
bb_dump_add(add_first);
bb_dump_add(add_strings[(int)(p - hexdump_opts)]);
} else if (ch == 'C') {
bb_dump_add("\"%08.8_Ax\n\"");
bb_dump_add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ");
bb_dump_add("\" |\" 16/1 \"%_p\" \"|\\n\"");
} else {
/* Sae a little bit of space below by omitting the 'else's. */
if (ch == 'e') {