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/*
* OProfile User Interface
*
* Copyright (C) 2007 Nokia Corporation. All rights reserved.
*
* Author: Robert Bradford <rob@openedhand.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <unistd.h>
#include <sys/sendfile.h>
#include <arpa/inet.h>
#include "util.h"
int
util_read_in_full (int fd, char *buf, size_t count)
{
size_t pos = 0;
while (count-pos > 0)
{
int res = read (fd, &buf[pos], count-pos);
if (res < 0)
{
return res;
}
if (res == 0)
return 0;
pos += res;
}
return pos;
}
int
util_write_in_full (int fd, char *buf, size_t count)
{
size_t pos = 0;
while (count - pos > 0)
{
int res = write (fd, &buf[pos], count-pos);
if (res < 0)
{
return res;
}
if (res == 0)
return 0;
pos += res;
}
return pos;
}
int
util_sendfile_in_full (int src_fd, int dest_fd, size_t count)
{
off_t offset = 0;
while (count - offset > 0)
{
int res = sendfile (src_fd, dest_fd, &offset, count-offset);
if (res < 0)
{
return res;
}
if (res == 0)
return 0;
}
return count;
}
void
util_resp_header_to_host (OpuiResponse *resp)
{
resp->length = ntohl (resp->length);
}
void
util_resp_body_to_host (OpuiResponse *resp)
{
switch (resp->opcode)
{
case RESPONSE_OP_STATUS:
{
OpuiResponseStatus *status = (OpuiResponseStatus *)resp->payload;
status->proto_version = ntohl (status->proto_version);
status->profiling = ntohl (status->profiling);
status->configured = ntohl (status->configured);
}
break;
case RESPONSE_OP_FILESTAT:
{
OpuiResponseFileStat *stat = (OpuiResponseFileStat *)resp->payload;
stat->mtime_h = ntohl (stat->mtime_h);
stat->mtime_l = ntohl (stat->mtime_l);
stat->size_h = ntohl (stat->size_h);
stat->size_l = ntohl (stat->size_l);
stat->mode_h = ntohl (stat->mode_h);
stat->mode_l = ntohl (stat->mode_l);
}
break;
default:
break;
}
}
void
util_cmd_header_to_net (OpuiCommand *cmd)
{
cmd->length = htonl (cmd->length);
}
void
util_cmd_header_to_host (OpuiCommand *cmd)
{
cmd->length = ntohl (cmd->length);
}
int
util_cmd_header_read_in_full (int fd, OpuiCommand *cmd)
{
int res = util_read_in_full (fd, (char *)cmd, sizeof(OpuiCommand));
if (res > 0)
cmd->length = ntohl (cmd->length);
return res;
}
int
util_resp_header_write_in_full (int fd, OpuiResponse *resp)
{
int ret;
uint32_t value;
size_t total;
static uint32_t res_count = 0;
/* write opcode & reserved[3] */
total = ret = util_write_in_full (fd, &resp->opcode, 4);
if (ret > 0)
{
/* write length */
value = htonl (resp->length);
ret = util_write_in_full (fd, (char *)&value, sizeof(uint32_t));
total += ret;
}
return (ret > 0) ? total : ret;
}
static int
util_resp_body_write_in_full (int fd, OpuiResponse *resp)
{
int ret = 0;
uint32_t value[6];
size_t total = 0;
switch (resp->opcode)
{
case RESPONSE_OP_STATUS:
{
OpuiResponseStatus *status = (OpuiResponseStatus *)resp->payload;
value[0] = htonl (status->proto_version);
value[1] = htonl (status->profiling);
value[2] = htonl (status->configured);
total = ret = util_write_in_full (fd, (char *)value, 3*sizeof(uint32_t));
}
break;
case RESPONSE_OP_FILESTAT:
{
OpuiResponseFileStat *stat = (OpuiResponseFileStat *)resp->payload;
value[0] = htonl (stat->mtime_h);
value[1] = htonl (stat->mtime_l);
value[2] = htonl (stat->size_h);
value[3] = htonl (stat->size_l);
value[4] = htonl (stat->mode_h);
value[5] = htonl (stat->mode_l);
total = ret = util_write_in_full (fd, (char *)value, 6*sizeof(uint32_t));
}
break;
default:
ret = 1;
total = 0;
break;
}
if (ret > 0 && resp->length - total > 0)
{
ret = util_write_in_full (fd, &resp->payload[total], resp->length - total);
total += ret;
}
return (ret > 0) ? total : ret;
}
int
util_resp_write_in_full (int fd, OpuiResponse *resp)
{
int ret;
size_t total;
total = ret = util_resp_header_write_in_full (fd, resp);
if (ret > 0 && resp->length > 0)
{
ret = util_resp_body_write_in_full (fd, resp);
total += ret;
}
return (ret > 0) ? total : ret;
}
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