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Fix segfault in progress bar in certain locales

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* src/progress.c (create_image): Protect memset from negative count

Reported-by: JunDong Xie
This commit is contained in:
Tim Rühsen 2019-12-18 13:06:46 +01:00
parent 042f2727bf
commit 6bd74e33d6
1 changed files with 10 additions and 4 deletions
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14
src/progress.c
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@ -1099,8 +1099,11 @@ create_image (struct bar_progress *bp, double dl_total_time, bool done)
/* " 234.56M" */
down_size = human_readable (size, 1000, 2);
cols_diff = PROGRESS_FILESIZE_LEN - count_cols (down_size);
memset (p, ' ', cols_diff);
p += cols_diff;
if (cols_diff > 0)
{
memset (p, ' ', cols_diff);
p += cols_diff;
}
p += sprintf (p, "%s", down_size);
/* " 12.52Kb/s or 12.52KB/s" */
@ -1182,8 +1185,11 @@ create_image (struct bar_progress *bp, double dl_total_time, bool done)
else
ncols += sprintf (p + nbytes, "%ss", print_decimal (dl_total_time));
p += ncols + bytes_cols_diff;
memset (p, ' ', PROGRESS_ETA_LEN - ncols);
p += PROGRESS_ETA_LEN - ncols;
if (ncols < PROGRESS_ETA_LEN)
{
memset (p, ' ', PROGRESS_ETA_LEN - ncols);
p += PROGRESS_ETA_LEN - ncols;
}
}
padding = bp->width - count_cols (bp->buffer);