[git commit] od: for !DESKTOP, match output more closely to GNU coreutils 9.1, implement -s
Denys Vlasenko
vda.linux at googlemail.com
Thu May 25 15:40:20 UTC 2023
commit: https://git.busybox.net/busybox/commit/?id=e2287f99fe6f21fd6435ad04340170ad4ba5f6b3
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master
Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
coreutils/od.c | 55 ++++++++++++++++++++++--------------
libbb/dump.c | 30 ++++++++++++++------
testsuite/od.tests | 83 +++++++++++++++++++++++++++++-------------------------
3 files changed, 100 insertions(+), 68 deletions(-)
diff --git a/coreutils/od.c b/coreutils/od.c
index dcf1bd6f6..6d562ea91 100644
--- a/coreutils/od.c
+++ b/coreutils/od.c
@@ -22,7 +22,7 @@
//usage:#if !ENABLE_DESKTOP
//usage:#define od_trivial_usage
-//usage: "[-aBbcDdeFfHhIiLlOovXx] [FILE]"
+//usage: "[-aBbcDdeFfHhIiLlOoXxsv] [FILE]"
//usage:#define od_full_usage "\n\n"
//usage: "Print FILE (or stdin) unambiguously, as octal bytes by default"
//usage:#endif
@@ -144,29 +144,42 @@ odoffset(dumper_t *dumper, int argc, char ***argvp)
}
}
+// A format string contains format units separated by whitespace.
+// A format unit contains up to three items: an iteration count, a byte count,
+// and a format.
+// The iteration count is an optional integer (default 1)
+// Each format is applied iteration count times.
+// The byte count is an optional integer. It defines the number
+// of bytes to be interpreted by each iteration of the format.
+// If an iteration count and/or a byte count is specified, a slash must be
+// placed after the iteration count and/or before the byte count
+// to disambiguate them.
+// The format is required and must be surrounded by " "s.
+// It is a printf-style format.
static const char *const add_strings[] ALIGN_PTR = {
- "16/1 \"%3_u \" \"\\n\"", /* a */
- "8/2 \" %06o \" \"\\n\"", /* B, o */
- "16/1 \"%03o \" \"\\n\"", /* b */
- "16/1 \"%3_c \" \"\\n\"", /* c */
- "8/2 \" %05u \" \"\\n\"", /* d */
- "4/4 \" %010u \" \"\\n\"", /* D */
- "2/8 \" %21.14e \" \"\\n\"", /* e (undocumented in od), F */
- "4/4 \" %14.7e \" \"\\n\"", /* f */
- "4/4 \" %08x \" \"\\n\"", /* H, X */
- "8/2 \" %04x \" \"\\n\"", /* h, x */
- "4/4 \" %11d \" \"\\n\"", /* I, L, l */
- "8/2 \" %6d \" \"\\n\"", /* i */
- "4/4 \" %011o \" \"\\n\"", /* O */
+ "16/1 \"%3_u \" \"\\n\"", /* 0: a */
+ "8/2 \"%06o \" \"\\n\"", /* 1: B (undocumented in od), o */
+ "16/1 \"%03o \" \"\\n\"", /* 2: b */
+ "16/1 \"%3_c \" \"\\n\"", /* 3: c */
+ "8/2 \"%5u \" \"\\n\"", /* 4: d */
+ "4/4 \"%10u \" \"\\n\"", /* 5: D */
+ "2/8 \"%24.14e \" \"\\n\"", /* 6: e (undocumented in od), F */
+ "4/4 \"%15.7e \" \"\\n\"", /* 7: f */
+ "4/4 \"%08x \" \"\\n\"", /* 8: H, X */
+ "8/2 \"%04x \" \"\\n\"", /* 9: h, x */
+ "2/8 \"%20lld \" \"\\n\"", /* 10: I, L, l */
+ "4/4 \"%11d \" \"\\n\"", /* 11: i */
+ "4/4 \"%011o \" \"\\n\"", /* 12: O */
+ "8/2 \"%6d \" \"\\n\"", /* 13: s */
};
-static const char od_opts[] ALIGN1 = "aBbcDdeFfHhIiLlOoXxv";
+static const char od_opts[] ALIGN1 = "aBbcDdeFfHhIiLlOoXxsv";
static const char od_o2si[] ALIGN1 = {
- 0, 1, 2, 3, 5,
- 4, 6, 6, 7, 8,
- 9, 0xa, 0xb, 0xa, 0xa,
- 0xc, 1, 8, 9,
+ 0, 1, 2, 3, 5, /* aBbcD */
+ 4, 6, 6, 7, 8, /* deFfH */
+ 9, 10, 11, 10, 10, /* hIiLl */
+ 12, 1, 8, 9, 13 /* OoXxs */
};
int od_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
@@ -184,9 +197,9 @@ int od_main(int argc, char **argv)
if (first) {
first = 0;
bb_dump_add(dumper, "\"%07.7_Ao\n\"");
- bb_dump_add(dumper, "\"%07.7_ao \"");
+ bb_dump_add(dumper, "\"%07.7_ao \"");
} else {
- bb_dump_add(dumper, "\" \"");
+ bb_dump_add(dumper, "\" \"");
}
bb_dump_add(dumper, add_strings[(int)od_o2si[(p - od_opts)]]);
} else { /* P, p, s, w, or other unhandled */
diff --git a/libbb/dump.c b/libbb/dump.c
index fcdee8343..cfb9d94f9 100644
--- a/libbb/dump.c
+++ b/libbb/dump.c
@@ -187,6 +187,10 @@ static NOINLINE void rewrite(priv_dumper_t *dumper, FS *fs)
++p2;
++p1;
+ if (*p1 == 'l') { /* %lld etc */
+ ++p2;
+ ++p1;
+ }
DO_INT_CONV:
e = strchr(int_convs, *p1); /* "diouxX"? */
if (!e)
@@ -194,7 +198,7 @@ static NOINLINE void rewrite(priv_dumper_t *dumper, FS *fs)
pr->flags = F_INT;
if (e > int_convs + 1) /* not d or i? */
pr->flags = F_UINT;
- byte_count_str = "\004\002\001";
+ byte_count_str = "\010\004\002\001";
goto DO_BYTE_COUNT;
} else
if (strchr(int_convs, *p1)) { /* %d etc */
@@ -601,22 +605,32 @@ static NOINLINE void display(priv_dumper_t* dumper)
break;
}
case F_INT: {
- int ival;
- short sval;
+ union {
+ uint16_t val16;
+ uint32_t val32;
+ uint64_t val64;
+ } u;
+ int value = *bp;
switch (pr->bcnt) {
case 1:
- printf(pr->fmt, (int) *bp);
break;
case 2:
- memcpy(&sval, bp, sizeof(sval));
- printf(pr->fmt, (int) sval);
+ memcpy(&u.val16, bp, 2);
+ value = u.val16;
break;
case 4:
- memcpy(&ival, bp, sizeof(ival));
- printf(pr->fmt, ival);
+ memcpy(&u.val32, bp, 4);
+ value = u.val32;
break;
+ case 8:
+ memcpy(&u.val64, bp, 8);
+//A hack. Users _must_ use %llX formats to not truncate high bits
+ printf(pr->fmt, (long long) u.val64);
+ goto skip;
}
+ printf(pr->fmt, value);
+ skip:
break;
}
case F_P:
diff --git a/testsuite/od.tests b/testsuite/od.tests
index 0b949d5f0..500e0e638 100755
--- a/testsuite/od.tests
+++ b/testsuite/od.tests
@@ -9,14 +9,19 @@
input="$(printf '\001\002\003\nABC\xfe')"
le=false
-{ printf '\0\1' | od -i | grep -q 256; } && le=true
+{ printf '\0\1' | od -s | grep -q 256; } && le=true
readonly le
+# NB:
+# sed 's/ *$//' truncates trailing spaces.
+# This needs to be fixed properly (not output them).
+# For now, the tests ignore them (does not require a match).
+
optional !DESKTOP
testing "od -a (!DESKTOP)" \
- "od -a" \
+ "od -a | sed 's/ *$//'" \
"\
-0000000 soh stx etx lf A B C fe
+0000000 soh stx etx lf A B C fe
0000010
" \
"" "$input"
@@ -24,9 +29,9 @@ SKIP=
optional !DESKTOP
testing "od -B (!DESKTOP)" \
- "od -B" \
+ "od -B | sed 's/ *$//'" \
"\
-0000000 001001 005003 041101 177103
+0000000 001001 005003 041101 177103
0000010
" \
"" "$input"
@@ -35,9 +40,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -o (!DESKTOP little-endian)" \
- "od -o" \
+ "od -o | sed 's/ *$//'" \
"\
-0000000 001001 005003 041101 177103
+0000000 001001 005003 041101 177103
0000010
" \
"" "$input"
@@ -45,9 +50,9 @@ SKIP=
optional !DESKTOP
testing "od -b (!DESKTOP)" \
- "od -b" \
+ "od -b | sed 's/ *$//'" \
"\
-0000000 001 002 003 012 101 102 103 376
+0000000 001 002 003 012 101 102 103 376
0000010
" \
"" "$input"
@@ -55,9 +60,9 @@ SKIP=
optional !DESKTOP
testing "od -c (!DESKTOP)" \
- "od -c" \
+ "od -c | sed 's/ *$//'" \
"\
-0000000 001 002 003 \\\\n A B C 376
+0000000 001 002 003 \\\\n A B C 376
0000010
" \
"" "$input"
@@ -66,9 +71,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -d (!DESKTOP little-endian)" \
- "od -d" \
+ "od -d | sed 's/ *$//'" \
"\
-0000000 00513 02563 16961 65091
+0000000 513 2563 16961 65091
0000010
" \
"" "$input"
@@ -77,9 +82,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -D (!DESKTOP little-endian)" \
- "od -D" \
+ "od -D | sed 's/ *$//'" \
"\
-0000000 0167969281 4265820737
+0000000 167969281 4265820737
0000010
" \
"" "$input"
@@ -88,9 +93,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -e (!DESKTOP little-endian)" \
- "od -e" \
+ "od -e | sed 's/ *$//'" \
"\
-0000000 -1.61218556514036e+300
+0000000 -1.61218556514036e+300
0000010
" \
"" "$input"
@@ -99,9 +104,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -F (!DESKTOP little-endian)" \
- "od -F" \
+ "od -F | sed 's/ *$//'" \
"\
-0000000 -1.61218556514036e+300
+0000000 -1.61218556514036e+300
0000010
" \
"" "$input"
@@ -109,9 +114,9 @@ testing "od -F (!DESKTOP little-endian)" \
optional !DESKTOP
$le || SKIP=1
testing "od -f (!DESKTOP little-endian)" \
- "od -f" \
+ "od -f | sed 's/ *$//'" \
"\
-0000000 6.3077975e-33 -6.4885867e+37
+0000000 6.3077975e-33 -6.4885867e+37
0000010
" \
"" "$input"
@@ -120,9 +125,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -H (!DESKTOP little-endian)" \
- "od -H" \
+ "od -H | sed 's/ *$//'" \
"\
-0000000 0a030201 fe434241
+0000000 0a030201 fe434241
0000010
" \
"" "$input"
@@ -131,9 +136,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -X (!DESKTOP little-endian)" \
- "od -X" \
+ "od -X | sed 's/ *$//'" \
"\
-0000000 0a030201 fe434241
+0000000 0a030201 fe434241
0000010
" \
"" "$input"
@@ -142,9 +147,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -h (!DESKTOP little-endian)" \
- "od -h" \
+ "od -h | sed 's/ *$//'" \
"\
-0000000 0201 0a03 4241 fe43
+0000000 0201 0a03 4241 fe43
0000010
" \
"" "$input"
@@ -153,9 +158,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -x (!DESKTOP little-endian)" \
- "od -x" \
+ "od -x | sed 's/ *$//'" \
"\
-0000000 0201 0a03 4241 fe43
+0000000 0201 0a03 4241 fe43
0000010
" \
"" "$input"
@@ -164,9 +169,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -I (!DESKTOP little-endian)" \
- "od -I" \
+ "od -I | sed 's/ *$//'" \
"\
-0000000 167969281 -29146559
+0000000 -125183517527965183
0000010
" \
"" "$input"
@@ -175,9 +180,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -L (!DESKTOP little-endian)" \
- "od -L" \
+ "od -L | sed 's/ *$//'" \
"\
-0000000 167969281 -29146559
+0000000 -125183517527965183
0000010
" \
"" "$input"
@@ -186,9 +191,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -i (!DESKTOP little-endian)" \
- "od -i" \
+ "od -i | sed 's/ *$//'" \
"\
-0000000 513 2563 16961 -445
+0000000 167969281 -29146559
0000010
" \
"" "$input"
@@ -197,9 +202,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -O (!DESKTOP little-endian)" \
- "od -O" \
+ "od -O | sed 's/ *$//'" \
"\
-0000000 01200601001 37620641101
+0000000 01200601001 37620641101
0000010
" \
"" "$input"
@@ -208,9 +213,9 @@ SKIP=
optional !DESKTOP
$le || SKIP=1
testing "od -l (!DESKTOP little-endian)" \
- "od -l" \
+ "od -l | sed 's/ *$//'" \
"\
-0000000 167969281 -29146559
+0000000 -125183517527965183
0000010
" \
"" "$input"
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