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flashcp: pad output to BUFSIZE. Hopefully closes 5882

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2013-01-23 11:41:22 +01:00
parent bf99807657
commit 243e733001
1 changed files with 15 additions and 11 deletions
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26
miscutils/flashcp.c
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@ -16,6 +16,7 @@
#include "libbb.h"
#include <mtd/mtd-user.h>
/* If 1, simulates "flashing" by writing to existing regular file */
#define MTD_DEBUG 0
#define OPT_v (1 << 0)
@ -32,7 +33,7 @@ static void progress(int mode, uoff_t count, uoff_t total)
if (total)
percent = (unsigned) (percent / total);
printf("\r%s: %"OFF_FMT"u/%"OFF_FMT"u (%u%%) ",
(mode == 0) ? "Erasing block" : ((mode == 1) ? "Writing kb" : "Verifying kb"),
(mode == -1) ? "Erasing block" : ((mode == 0) ? "Writing kb" : "Verifying kb"),
count, total, (unsigned)percent);
fflush_all();
}
@ -97,8 +98,7 @@ int flashcp_main(int argc UNUSED_PARAM, char **argv)
#endif
e.start = 0;
for (i = 1; i <= erase_count; i++) {
progress(0, i, erase_count);
errno = 0;
progress(-1, i, erase_count);
#if !MTD_DEBUG
if (ioctl(fd_d, MEMERASE, &e) < 0) {
bb_perror_msg_and_die("erase error at 0x%llx on %s",
@ -113,7 +113,7 @@ int flashcp_main(int argc UNUSED_PARAM, char **argv)
/* doing this outer loop gives significantly smaller code
* than doing two separate loops for writing and verifying */
for (i = 1; i <= 2; i++) {
for (i = 0; i <= 1; i++) {
uoff_t done;
unsigned count;
@ -122,25 +122,29 @@ int flashcp_main(int argc UNUSED_PARAM, char **argv)
done = 0;
count = BUFSIZE;
while (1) {
uoff_t rem = statb.st_size - done;
uoff_t rem;
progress(i, done / 1024, (uoff_t)statb.st_size / 1024);
rem = statb.st_size - done;
if (rem == 0)
break;
if (rem < BUFSIZE)
count = rem;
progress(i, done / 1024, (uoff_t)statb.st_size / 1024);
xread(fd_f, buf, count);
if (i == 1) {
if (i == 0) {
int ret;
if (count < BUFSIZE)
memset((char*)buf + count, 0, BUFSIZE - count);
errno = 0;
ret = full_write(fd_d, buf, count);
if (ret != count) {
ret = full_write(fd_d, buf, BUFSIZE);
if (ret != BUFSIZE) {
bb_perror_msg_and_die("write error at 0x%"OFF_FMT"x on %s, "
"write returned %d",
done, devicename, ret);
}
} else { /* i == 2 */
} else { /* i == 1 */
xread(fd_d, buf2, count);
if (memcmp(buf, buf2, count)) {
if (memcmp(buf, buf2, count) != 0) {
bb_error_msg_and_die("verification mismatch at 0x%"OFF_FMT"x", done);
}
}