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only get a buffer if we really need it (fixed #280) 

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-merge-1.4.x@723 152afb58-edef-0310-8abb-c4023f1b3aa9
svn/tags/lighttpd-1.4.6
Jan Kneschke 2005-09-21 16:41:23 +00:00
parent 09a26806f4
commit f5ca9798df
1 changed files with 24 additions and 8 deletions
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32
src/mod_ssi.c
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@ -722,15 +722,31 @@ static int process_ssi_stmt(server *srv, connection *con, plugin_data *p,
if (-1 == waitpid(pid, &status, 0)) {
log_error_write(srv, __FILE__, __LINE__, "ss", "waitpid failed:", strerror(errno));
} else if (WIFEXITED(status)) {
int toread;
/* read everything from client and paste it into the output */
for (b = chunkqueue_get_append_buffer(con->write_queue), buffer_prepare_copy(b, 4096);
(r = read(from_exec_fds[0], b->ptr, b->size - 1)) > 0;
b = chunkqueue_get_append_buffer(con->write_queue), buffer_prepare_copy(b, 4096)) {
b->used = r;
b->ptr[b->used++] = '\0';
while(1) {
if (ioctl(from_exec_fds[0], FIONREAD, &toread)) {
log_error_write(srv, __FILE__, __LINE__, "s",
"unexpected end-of-file (perhaps the ssi-exec process died)");
return -1;
}
if (toread > 0) {
b = chunkqueue_get_append_buffer(con->write_queue);
buffer_prepare_copy(b, toread + 1);
if ((r = read(from_exec_fds[0], b->ptr, b->size - 1)) < 0) {
/* read failed */
break;
} else {
b->used = r;
b->ptr[b->used++] = '\0';
}
} else {
break;
}
}
} else {
log_error_write(srv, __FILE__, __LINE__, "s", "process exited abnormally");