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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2006-10-07 16:24:46 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2006-10-07 16:24:46 +0000
commit5625415085e68ac5e150f54e685417c866620d76 (patch)
tree4146667d4080f97bc39ac96d844c01a8956aeeca /coreutils
parent890ac9deb2cc57cadd7aba4ee91bd012e19e239d (diff)
downloadbusybox-5625415085e68ac5e150f54e685417c866620d76.tar.gz
busybox-5625415085e68ac5e150f54e685417c866620d76.tar.bz2
dd: make it recognize not only 'k' but 'K' too;
make it (partially) CONFIG_LFS-aware
Diffstat (limited to 'coreutils')
-rw-r--r--coreutils/dd.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/coreutils/dd.c b/coreutils/dd.c
index 8d859ef5c..e63244d81 100644
--- a/coreutils/dd.c
+++ b/coreutils/dd.c
@@ -17,6 +17,7 @@ static const struct suffix_mult dd_suffixes[] = {
{ "b", 512 },
{ "kD", 1000 },
{ "k", 1024 },
+ { "K", 1024 }, // compat with coreutils dd
{ "MD", 1000000 },
{ "M", 1048576 },
{ "GD", 1000000000 },
@@ -24,25 +25,26 @@ static const struct suffix_mult dd_suffixes[] = {
{ NULL, 0 }
};
-static size_t out_full, out_part, in_full, in_part;
+static FILEOFF_TYPE out_full, out_part, in_full, in_part;
static void dd_output_status(int ATTRIBUTE_UNUSED cur_signal)
{
- bb_fprintf(stderr, "%ld+%ld records in\n%ld+%ld records out\n",
- (long)in_full, (long)in_part,
- (long)out_full, (long)out_part);
+ bb_fprintf(stderr, FILEOFF_FMT"+"FILEOFF_FMT" records in\n"
+ FILEOFF_FMT"+"FILEOFF_FMT" records out\n",
+ in_full, in_part,
+ out_full, out_part);
}
int dd_main(int argc, char **argv)
{
-#define sync_flag (1<<0)
-#define noerror (1<<1)
-#define trunc_flag (1<<2)
+#define sync_flag (1<<0)
+#define noerror (1<<1)
+#define trunc_flag (1<<2)
#define twobufs_flag (1<<3)
int flags = trunc_flag;
- size_t count = -1, oc = 0, ibs = 512, obs = 512;
+ size_t oc = 0, ibs = 512, obs = 512;
ssize_t n;
- off_t seek = 0, skip = 0;
+ FILEOFF_TYPE seek = 0, skip = 0, count = MAX_FILEOFF_TYPE;
int oflag, ifd, ofd;
const char *infile = NULL, *outfile = NULL;
char *ibuf, *obuf;
@@ -58,6 +60,7 @@ int dd_main(int argc, char **argv)
}
for (n = 1; n < argc; n++) {
+ // FIXME: make them capable of eating LARGE numbers
if (ENABLE_FEATURE_DD_IBS_OBS && !strncmp("ibs=", argv[n], 4)) {
ibs = bb_xparse_number(argv[n]+4, dd_suffixes);
flags |= twobufs_flag;
@@ -80,7 +83,7 @@ int dd_main(int argc, char **argv)
ibuf = argv[n]+5;
while (1) {
if (!strncmp("notrunc", ibuf, 7)) {
- flags ^= trunc_flag;
+ flags &= ~trunc_flag;
ibuf += 7;
} else if (!strncmp("sync", ibuf, 4)) {
flags |= sync_flag;
@@ -105,14 +108,14 @@ int dd_main(int argc, char **argv)
obuf = ibuf;
if (infile != NULL)
- ifd = xopen(infile, O_RDONLY);
+ ifd = xopen(infile, O_RDONLY | (O_LARGEFILE * ENABLE_LFS));
else {
ifd = STDIN_FILENO;
infile = bb_msg_standard_input;
}
if (outfile != NULL) {
- oflag = O_WRONLY | O_CREAT;
+ oflag = O_WRONLY | O_CREAT | (O_LARGEFILE * ENABLE_LFS);
if (!seek && (flags & trunc_flag))
oflag |= O_TRUNC;
@@ -134,7 +137,7 @@ int dd_main(int argc, char **argv)
}
if (skip) {
- if (lseek(ifd, skip * ibs, SEEK_CUR) < 0) {
+ if (LSEEK(ifd, skip * ibs, SEEK_CUR) < 0) {
while (skip-- > 0) {
n = safe_read(ifd, ibuf, ibs);
if (n < 0)
@@ -146,7 +149,7 @@ int dd_main(int argc, char **argv)
}
if (seek) {
- if (lseek(ofd, seek * obs, SEEK_CUR) < 0)
+ if (LSEEK(ofd, seek * obs, SEEK_CUR) < 0)
goto die_outfile;
}