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authorDenys Vlasenko2017-01-25 16:50:30 +0100
committerDenys Vlasenko2017-01-25 16:50:30 +0100
commit62a9b18547462a657ffb18cf03d5cfdcf774c905 (patch)
tree5c6a660cd8066b1ed5944a4b9cb2717e89573be7 /util-linux
parentcb8e84e65a254dcba4939e237b93d03c46ae56aa (diff)
downloadbusybox-62a9b18547462a657ffb18cf03d5cfdcf774c905.zip
busybox-62a9b18547462a657ffb18cf03d5cfdcf774c905.tar.gz
xxd: implement -p
While at it, tweaked hexdump --help function old new delta xxd_main 364 414 +50 packed_usage 31097 31114 +17 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'util-linux')
-rw-r--r--util-linux/hexdump.c19
-rw-r--r--util-linux/hexdump_xxd.c30
2 files changed, 31 insertions, 18 deletions
diff --git a/util-linux/hexdump.c b/util-linux/hexdump.c
index a4483a1..25f7712 100644
--- a/util-linux/hexdump.c
+++ b/util-linux/hexdump.c
@@ -41,20 +41,21 @@
//usage: "[-bcCdefnosvx" IF_FEATURE_HEXDUMP_REVERSE("R") "] [FILE]..."
//usage:#define hexdump_full_usage "\n\n"
//usage: "Display FILEs (or stdin) in a user specified format\n"
-//usage: "\n -b One-byte octal display"
-//usage: "\n -c One-byte character display"
-//usage: "\n -C Canonical hex+ASCII, 16 bytes per line"
-//usage: "\n -d Two-byte decimal display"
-//usage: "\n -e FORMAT_STRING"
+//usage: "\n -b 1-byte octal display"
+//usage: "\n -c 1-byte character display"
+//usage: "\n -d 2-byte decimal display"
+//usage: "\n -o 2-byte octal display"
+//usage: "\n -x 2-byte hex display"
+//usage: "\n -C hex+ASCII 16 bytes per line"
+//usage: "\n -v Show all (no dup folding)"
+//usage: "\n -e FORMAT_STR Example: '16/1 \"%02x|\"\"\\n\"'"
//usage: "\n -f FORMAT_FILE"
// exactly the same help text lines in hexdump and xxd:
-//usage: "\n -n LENGTH Interpret only LENGTH bytes of input"
-//usage: "\n -o Two-byte octal display"
+//usage: "\n -n LENGTH Show only first LENGTH bytes"
//usage: "\n -s OFFSET Skip OFFSET bytes"
-//usage: "\n -v Display all input data"
-//usage: "\n -x Two-byte hexadecimal display"
//usage: IF_FEATURE_HEXDUMP_REVERSE(
//usage: "\n -R Reverse of 'hexdump -Cv'")
+// TODO: NONCOMPAT!!! move -R to xxd -r
//usage:
//usage:#define hd_trivial_usage
//usage: "FILE..."
diff --git a/util-linux/hexdump_xxd.c b/util-linux/hexdump_xxd.c
index 813e7fe..cc34ea6 100644
--- a/util-linux/hexdump_xxd.c
+++ b/util-linux/hexdump_xxd.c
@@ -46,9 +46,11 @@
//usage: "Hex dump FILE (or stdin)\n"
//usage: "\n -g N Bytes per group"
//usage: "\n -c N Bytes per line"
+//usage: "\n -p Show only hex bytes, assumes -c30"
// exactly the same help text lines in hexdump and xxd:
-//usage: "\n -l LENGTH Interpret only LENGTH bytes of input"
+//usage: "\n -l LENGTH Show only first LENGTH bytes"
//usage: "\n -s OFFSET Skip OFFSET bytes"
+// TODO: implement -r (see hexdump -R)
#include "libbb.h"
#include "dump.h"
@@ -70,11 +72,12 @@ int xxd_main(int argc UNUSED_PARAM, char **argv)
#define OPT_l (1 << 0)
#define OPT_s (1 << 1)
#define OPT_a (1 << 2)
+#define OPT_p (1 << 3)
opt_complementary = "?1"; /* 1 argument max */
- opt = getopt32(argv, "l:s:ag:+c:+", &opt_l, &opt_s, &bytes, &cols);
+ opt = getopt32(argv, "l:s:apg:+c:+", &opt_l, &opt_s, &bytes, &cols);
argv += optind;
-// dumper->dump_vflag = ALL; // default
+ dumper->dump_vflag = ALL;
// if (opt & OPT_a)
// dumper->dump_vflag = SKIPNUL; ..does not exist
if (opt & OPT_l) {
@@ -93,9 +96,16 @@ int xxd_main(int argc UNUSED_PARAM, char **argv)
//BUGGY for /proc/version (unseekable?)
}
- bb_dump_add(dumper, "\"%08.8_ax: \""); // "address: "
- if (cols == 0)
- cols = 16;
+ if (opt & OPT_p) {
+ if (cols == 0)
+ cols = 30;
+ bytes = cols; /* -p ignores -gN */
+ } else {
+ if (cols == 0)
+ cols = 16;
+ bb_dump_add(dumper, "\"%08.8_ax: \""); // "address: "
+ }
+
if (bytes < 1 || bytes >= cols) {
sprintf(buf, "%u/1 \"%%02x\"", cols); // cols * "xx"
bb_dump_add(dumper, buf);
@@ -109,7 +119,7 @@ int xxd_main(int argc UNUSED_PARAM, char **argv)
#define BS "/1 \"%02x \""
#define B "/1 \"%02x\""
unsigned i;
- char *bigbuf = xmalloc(1 + cols * (sizeof(BS)-1));
+ char *bigbuf = xmalloc(cols * (sizeof(BS)-1));
char *p = bigbuf;
for (i = 1; i <= cols; i++) {
if (i == cols || i % bytes)
@@ -125,8 +135,10 @@ int xxd_main(int argc UNUSED_PARAM, char **argv)
free(bigbuf);
}
- sprintf(buf, "\" \"%u/1 \"%%_p\"\"\n\"", cols); // " ASCII\n"
- bb_dump_add(dumper, buf);
+ if (!(opt & OPT_p)) {
+ sprintf(buf, "\" \"%u/1 \"%%_p\"\"\n\"", cols); // " ASCII\n"
+ bb_dump_add(dumper, buf);
+ }
return bb_dump_dump(dumper, argv);
}