svn commit: r264059 - head/bin/dd
Xin LI
delphij at FreeBSD.org
Thu Apr 3 00:55:18 UTC 2014
Author: delphij
Date: Thu Apr 3 00:55:16 2014
New Revision: 264059
URL: http://svnweb.freebsd.org/changeset/base/264059
Log:
Implement GNU's extension of 'status' operand. The GNU syntax is
borrowed where syntax status=noxfer means no transfer statistics
and status=none means no status information at all.
This feature is useful because the statistics information can
sometimes be annoying, and redirecting stderr to /dev/null would
mean error messages also gets silenced.
Obtained from: OpenBSD
MFC after: 2 weeks
Modified:
head/bin/dd/args.c
head/bin/dd/dd.1
head/bin/dd/dd.c
head/bin/dd/dd.h
head/bin/dd/extern.h
head/bin/dd/misc.c
Modified: head/bin/dd/args.c
==============================================================================
--- head/bin/dd/args.c Wed Apr 2 23:07:15 2014 (r264058)
+++ head/bin/dd/args.c Thu Apr 3 00:55:16 2014 (r264059)
@@ -66,6 +66,7 @@ static void f_obs(char *);
static void f_of(char *);
static void f_seek(char *);
static void f_skip(char *);
+static void f_status(char *);
static uintmax_t get_num(const char *);
static off_t get_off_t(const char *);
@@ -88,6 +89,7 @@ static const struct arg {
{ "oseek", f_seek, C_SEEK, C_SEEK },
{ "seek", f_seek, C_SEEK, C_SEEK },
{ "skip", f_skip, C_SKIP, C_SKIP },
+ { "status", f_status, C_STATUS,C_STATUS },
};
static char *oper;
@@ -292,6 +294,18 @@ f_skip(char *arg)
in.offset = get_off_t(arg);
}
+static void
+f_status(char *arg)
+{
+
+ if (strcmp(arg, "none") == 0)
+ ddflags |= C_NOINFO;
+ else if (strcmp(arg, "noxfer") == 0)
+ ddflags |= C_NOXFER;
+ else
+ errx(1, "unknown status %s", arg);
+}
+
static const struct conv {
const char *name;
u_int set, noset;
Modified: head/bin/dd/dd.1
==============================================================================
--- head/bin/dd/dd.1 Wed Apr 2 23:07:15 2014 (r264058)
+++ head/bin/dd/dd.1 Thu Apr 3 00:55:16 2014 (r264059)
@@ -32,7 +32,7 @@
.\" @(#)dd.1 8.2 (Berkeley) 1/13/94
.\" $FreeBSD$
.\"
-.Dd October 1, 2013
+.Dd April 2, 2014
.Dt DD 1
.Os
.Sh NAME
@@ -156,6 +156,17 @@ Otherwise, input data is read and discar
For pipes, the correct number of bytes is read.
For all other devices, the correct number of blocks is read without
distinguishing between a partial or complete block being read.
+.It Cm status Ns = Ns Ar value
+Where
+.Cm value
+is one of the symbols from the following list.
+.Bl -tag -width ".Cm noxfer"
+.It Cm noxfer
+Do not print the transfer statistics as the last line of status output.
+.It Cm none
+Do not print the status output.
+Error messages are shown; informational messages are not.
+.El
.It Cm conv Ns = Ns Ar value Ns Op , Ns Ar value ...
Where
.Cm value
@@ -410,7 +421,9 @@ utility is expected to be a superset of
standard.
The
.Cm files
-operand and the
+and
+.Cm status
+operands and the
.Cm ascii ,
.Cm ebcdic ,
.Cm ibm ,
Modified: head/bin/dd/dd.c
==============================================================================
--- head/bin/dd/dd.c Wed Apr 2 23:07:15 2014 (r264058)
+++ head/bin/dd/dd.c Thu Apr 3 00:55:16 2014 (r264059)
@@ -76,7 +76,7 @@ STAT st; /* statistics */
void (*cfunc)(void); /* conversion function */
uintmax_t cpy_cnt; /* # of blocks to copy */
static off_t pending = 0; /* pending seek if sparse */
-u_int ddflags = 0; /* conversion options */
+u_int64_t ddflags = 0; /* conversion options */
size_t cbsz; /* conversion block size */
uintmax_t files_cnt = 1; /* # of files to copy */
const u_char *ctab; /* conversion table */
Modified: head/bin/dd/dd.h
==============================================================================
--- head/bin/dd/dd.h Wed Apr 2 23:07:15 2014 (r264058)
+++ head/bin/dd/dd.h Thu Apr 3 00:55:16 2014 (r264059)
@@ -68,32 +68,35 @@ typedef struct {
} STAT;
/* Flags (in ddflags). */
-#define C_ASCII 0x00001
-#define C_BLOCK 0x00002
-#define C_BS 0x00004
-#define C_CBS 0x00008
-#define C_COUNT 0x00010
-#define C_EBCDIC 0x00020
-#define C_FILES 0x00040
-#define C_IBS 0x00080
-#define C_IF 0x00100
-#define C_LCASE 0x00200
-#define C_NOERROR 0x00400
-#define C_NOTRUNC 0x00800
-#define C_OBS 0x01000
-#define C_OF 0x02000
-#define C_OSYNC 0x04000
-#define C_PAREVEN 0x08000
-#define C_PARNONE 0x100000
-#define C_PARODD 0x200000
-#define C_PARSET 0x400000
-#define C_SEEK 0x800000
-#define C_SKIP 0x1000000
-#define C_SPARSE 0x2000000
-#define C_SWAB 0x4000000
-#define C_SYNC 0x8000000
-#define C_UCASE 0x10000000
-#define C_UNBLOCK 0x20000000
-#define C_FILL 0x40000000
+#define C_ASCII 0x000000001
+#define C_BLOCK 0x000000002
+#define C_BS 0x000000004
+#define C_CBS 0x000000008
+#define C_COUNT 0x000000010
+#define C_EBCDIC 0x000000020
+#define C_FILES 0x000000040
+#define C_IBS 0x000000080
+#define C_IF 0x000000100
+#define C_LCASE 0x000000200
+#define C_NOERROR 0x000000400
+#define C_NOTRUNC 0x000000800
+#define C_OBS 0x000001000
+#define C_OF 0x000002000
+#define C_OSYNC 0x000004000
+#define C_PAREVEN 0x000008000
+#define C_PARNONE 0x000100000
+#define C_PARODD 0x000200000
+#define C_PARSET 0x000400000
+#define C_SEEK 0x000800000
+#define C_SKIP 0x001000000
+#define C_SPARSE 0x002000000
+#define C_SWAB 0x004000000
+#define C_SYNC 0x008000000
+#define C_UCASE 0x010000000
+#define C_UNBLOCK 0x020000000
+#define C_FILL 0x040000000
+#define C_STATUS 0x080000000
+#define C_NOXFER 0x100000000
+#define C_NOINFO 0x200000000
#define C_PARITY (C_PAREVEN | C_PARODD | C_PARNONE | C_PARSET)
Modified: head/bin/dd/extern.h
==============================================================================
--- head/bin/dd/extern.h Wed Apr 2 23:07:15 2014 (r264058)
+++ head/bin/dd/extern.h Thu Apr 3 00:55:16 2014 (r264059)
@@ -53,7 +53,7 @@ extern STAT st;
extern void (*cfunc)(void);
extern uintmax_t cpy_cnt;
extern size_t cbsz;
-extern u_int ddflags;
+extern u_int64_t ddflags;
extern uintmax_t files_cnt;
extern const u_char *ctab;
extern const u_char a2e_32V[], a2e_POSIX[];
Modified: head/bin/dd/misc.c
==============================================================================
--- head/bin/dd/misc.c Wed Apr 2 23:07:15 2014 (r264058)
+++ head/bin/dd/misc.c Thu Apr 3 00:55:16 2014 (r264059)
@@ -59,6 +59,9 @@ summary(void)
struct timeval tv;
double secs;
+ if (ddflags & C_NOINFO)
+ return;
+
(void)gettimeofday(&tv, NULL);
secs = tv.tv_sec + tv.tv_usec * 1e-6 - st.start;
if (secs < 1e-6)
@@ -72,9 +75,11 @@ summary(void)
if (st.trunc)
(void)fprintf(stderr, "%ju truncated %s\n",
st.trunc, (st.trunc == 1) ? "block" : "blocks");
- (void)fprintf(stderr,
- "%ju bytes transferred in %.6f secs (%.0f bytes/sec)\n",
- st.bytes, secs, st.bytes / secs);
+ if (!(ddflags & C_NOXFER)) {
+ (void)fprintf(stderr,
+ "%ju bytes transferred in %.6f secs (%.0f bytes/sec)\n",
+ st.bytes, secs, st.bytes / secs);
+ }
need_summary = 0;
}
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