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author | kientzle <kientzle@FreeBSD.org> | 2006-11-12 23:45:40 +0000 |
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committer | kientzle <kientzle@FreeBSD.org> | 2006-11-12 23:45:40 +0000 |
commit | 7f111df0280b73ecaf3370e35a7e2dd7c92ba596 (patch) | |
tree | 80996be19c4adc221d2616262d6adf7a6169c3c4 /lib/libarchive/archive_read_data_into_fd.c | |
parent | e9b95a7ee6d5a20eda85e12eedc5f32db6142aa7 (diff) | |
download | FreeBSD-src-7f111df0280b73ecaf3370e35a7e2dd7c92ba596.zip FreeBSD-src-7f111df0280b73ecaf3370e35a7e2dd7c92ba596.tar.gz |
Correctly handle writing very large blocks (>1M) through to a disk
file. This doesn't happen in normal use, because the file I/O and
decompression layers only pass through smaller blocks. It can happen
with custom read functions that block I/O in larger blocks.
Diffstat (limited to 'lib/libarchive/archive_read_data_into_fd.c')
-rw-r--r-- | lib/libarchive/archive_read_data_into_fd.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libarchive/archive_read_data_into_fd.c b/lib/libarchive/archive_read_data_into_fd.c index 579174e..509094b 100644 --- a/lib/libarchive/archive_read_data_into_fd.c +++ b/lib/libarchive/archive_read_data_into_fd.c @@ -63,6 +63,7 @@ archive_read_data_into_fd(struct archive *a, int fd) while ((r = archive_read_data_block(a, &buff, &size, &offset)) == ARCHIVE_OK) { + const char *p = buff; if (offset > output_offset) { lseek(fd, offset - output_offset, SEEK_CUR); output_offset = offset; @@ -71,13 +72,14 @@ archive_read_data_into_fd(struct archive *a, int fd) bytes_to_write = size; if (bytes_to_write > MAX_WRITE) bytes_to_write = MAX_WRITE; - bytes_written = write(fd, buff, bytes_to_write); + bytes_written = write(fd, p, bytes_to_write); if (bytes_written < 0) { archive_set_error(a, errno, "Write error"); return (-1); } output_offset += bytes_written; total_written += bytes_written; + p += bytes_written; size -= bytes_written; if (a->extract_progress != NULL) (*a->extract_progress)(a->extract_progress_user_data); |