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Reduce block size to 512 to prevent short read's when reading from a pipe

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This commit is contained in:
Glenn L McGrath 2002-11-12 23:34:15 +00:00
parent 9af8a72f10
commit 034c371bb2
1 changed files with 5 additions and 10 deletions
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15
archival/libunarchive/archive_copy_file.c
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@ -19,17 +19,15 @@
#include "libbb.h" #include "libbb.h"
#include "unarchive.h" #include "unarchive.h"
/* Copy CHUNKSIZE bytes (or untill EOF if chunksize == -1)
* from SRC_FILE to DST_FILE. */
extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd) extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd)
{ {
size_t size; char buffer[512];
char buffer[BUFSIZ];
off_t chunksize = archive_handle->file_header->size; off_t chunksize = archive_handle->file_header->size;
while (chunksize != 0) { while (chunksize != 0) {
if (chunksize > BUFSIZ) { size_t size;
size = BUFSIZ; if (chunksize > 512) {
size = 512;
} else { } else {
size = chunksize; size = chunksize;
} }
@ -38,10 +36,7 @@ extern void archive_copy_file(const archive_handle_t *archive_handle, const int
if (write(dst_fd, buffer, size) != size) { if (write(dst_fd, buffer, size) != size) {
error_msg_and_die ("Short write"); error_msg_and_die ("Short write");
} }
chunksize -= size;
if (chunksize != -1) {
chunksize -= size;
}
} }
return; return;