aboutsummaryrefslogtreecommitdiffstats
path: root/package/utils/busybox/patches/008-backport-dd-conv-swab.patch
diff options
context:
space:
mode:
Diffstat (limited to 'package/utils/busybox/patches/008-backport-dd-conv-swab.patch')
-rw-r--r--package/utils/busybox/patches/008-backport-dd-conv-swab.patch97
1 files changed, 0 insertions, 97 deletions
diff --git a/package/utils/busybox/patches/008-backport-dd-conv-swab.patch b/package/utils/busybox/patches/008-backport-dd-conv-swab.patch
deleted file mode 100644
index 1e3cd15c93..0000000000
--- a/package/utils/busybox/patches/008-backport-dd-conv-swab.patch
+++ /dev/null
@@ -1,97 +0,0 @@
---- a/coreutils/dd.c
-+++ b/coreutils/dd.c
-@@ -10,7 +10,7 @@
-
- //usage:#define dd_trivial_usage
- //usage: "[if=FILE] [of=FILE] " IF_FEATURE_DD_IBS_OBS("[ibs=N] [obs=N] ") "[bs=N] [count=N] [skip=N]\n"
--//usage: " [seek=N]" IF_FEATURE_DD_IBS_OBS(" [conv=notrunc|noerror|sync|fsync]")
-+//usage: " [seek=N]" IF_FEATURE_DD_IBS_OBS(" [conv=notrunc|noerror|sync|fsync|swab]")
- //usage:#define dd_full_usage "\n\n"
- //usage: "Copy a file with converting and formatting\n"
- //usage: "\n if=FILE Read from FILE instead of stdin"
-@@ -30,6 +30,7 @@
- //usage: "\n conv=noerror Continue after read errors"
- //usage: "\n conv=sync Pad blocks with zeros"
- //usage: "\n conv=fsync Physically write data out before finishing"
-+//usage: "\n conv=swab Swap every pair of bytes"
- //usage: )
- //usage: "\n"
- //usage: "\nNumbers may be suffixed by c (x1), w (x2), b (x512), kD (x1000), k (x1024),"
-@@ -155,9 +156,10 @@ int dd_main(int argc UNUSED_PARAM, char
- FLAG_SYNC = 1 << 1,
- FLAG_NOERROR = 1 << 2,
- FLAG_FSYNC = 1 << 3,
-+ FLAG_SWAB = 1 << 4,
- /* end of conv flags */
-- FLAG_TWOBUFS = 1 << 4,
-- FLAG_COUNT = 1 << 5,
-+ FLAG_TWOBUFS = 1 << 5,
-+ FLAG_COUNT = 1 << 6,
- };
- static const char keywords[] ALIGN1 =
- "bs\0""count\0""seek\0""skip\0""if\0""of\0"
-@@ -167,7 +169,7 @@ int dd_main(int argc UNUSED_PARAM, char
- ;
- #if ENABLE_FEATURE_DD_IBS_OBS
- static const char conv_words[] ALIGN1 =
-- "notrunc\0""sync\0""noerror\0""fsync\0";
-+ "notrunc\0""sync\0""noerror\0""fsync\0""swab\0";
- #endif
- enum {
- OP_bs = 0,
-@@ -185,11 +187,11 @@ int dd_main(int argc UNUSED_PARAM, char
- OP_conv_sync,
- OP_conv_noerror,
- OP_conv_fsync,
-+ OP_conv_swab,
- /* Unimplemented conv=XXX: */
- //nocreat do not create the output file
- //excl fail if the output file already exists
- //fdatasync physically write output file data before finishing
-- //swab swap every pair of input bytes
- //lcase change upper case to lower case
- //ucase change lower case to upper case
- //block pad newline-terminated records with spaces to cbs-size
-@@ -207,12 +209,14 @@ int dd_main(int argc UNUSED_PARAM, char
- struct {
- int flags;
- size_t oc;
-+ ssize_t prev_read_size; /* for detecting swab failure */
- off_t count;
- off_t seek, skip;
- const char *infile, *outfile;
- } Z;
- #define flags (Z.flags )
- #define oc (Z.oc )
-+#define prev_read_size (Z.prev_read_size)
- #define count (Z.count )
- #define seek (Z.seek )
- #define skip (Z.skip )
-@@ -375,6 +379,27 @@ int dd_main(int argc UNUSED_PARAM, char
- * conv=noerror just ignores input bad blocks */
- n = 0;
- }
-+ if (flags & FLAG_SWAB) {
-+ uint16_t *p16;
-+ ssize_t n2;
-+
-+ /* Our code allows only last read to be odd-sized */
-+ if (prev_read_size & 1)
-+ bb_error_msg_and_die("can't swab %lu byte buffer",
-+ (unsigned long)prev_read_size);
-+ prev_read_size = n;
-+
-+ /* If n is odd, last byte is not swapped:
-+ * echo -n "qwe" | dd conv=swab
-+ * prints "wqe".
-+ */
-+ p16 = (void*) ibuf;
-+ n2 = (n >> 1);
-+ while (--n2 >= 0) {
-+ *p16 = bswap_16(*p16);
-+ p16++;
-+ }
-+ }
- if ((size_t)n == ibs)
- G.in_full++;
- else {