323 lines
7.9 KiB
C
323 lines
7.9 KiB
C
/*
|
|
* File : sz.c
|
|
* the implemention of sending files to the remote computers
|
|
* through the zmodem protocol.
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2011-03-29 itspy
|
|
*/
|
|
|
|
#include <rtthread.h>
|
|
#include <finsh.h>
|
|
#include <shell.h>
|
|
#include <rtdef.h>
|
|
#include <dfs.h>
|
|
#include <unistd.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/statfs.h>
|
|
#include "zdef.h"
|
|
|
|
|
|
static rt_uint8_t TX_BUFFER[TX_BUFFER_SIZE]; /* sender buffer */
|
|
static rt_uint8_t file_cnt = 0; /* count of number of files opened */
|
|
static rt_uint8_t Rxflags = 0; /* rx parameter flags */
|
|
static rt_uint8_t ZF2_OP; /* file transfer option */
|
|
|
|
void zs_start(char *path);
|
|
static void zsend_init(void);
|
|
static rt_err_t zsend_files(struct zfile *zf);
|
|
static rt_err_t zsend_file(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t len);
|
|
static rt_err_t zsend_file_data(struct zfile *zf);
|
|
static rt_uint16_t zfill_buffer(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t size);
|
|
static rt_err_t zget_sync(void);
|
|
static void zsay_bibi(void);
|
|
|
|
|
|
|
|
|
|
/* start zmodem send process */
|
|
void zs_start(char *path)
|
|
{
|
|
struct zfile *zf;
|
|
rt_err_t res = RT_ERROR;
|
|
char *p,*q;
|
|
zf = rt_malloc(sizeof(struct zfile));
|
|
if (zf == RT_NULL)
|
|
{
|
|
rt_kprintf("zf: out of memory\r\n");
|
|
return;
|
|
}
|
|
rt_kprintf("\r\nsz: ready...\r\n"); /* here ready to send things */
|
|
rt_memset(zf, 0, sizeof(struct zfile));
|
|
zf->fname = path;
|
|
zf->fd = -1;
|
|
res = zsend_files(zf);
|
|
p = zf->fname;
|
|
for (;;)
|
|
{
|
|
q = strstr(p,"/");
|
|
if (q == RT_NULL) break;
|
|
p = q+1;
|
|
}
|
|
if (res == RT_EOK)
|
|
{
|
|
rt_kprintf("\r\nfile: %s \r\nsize: %ld bytes\r\nsend completed.\r\n",
|
|
p,zf->bytes_received);
|
|
}
|
|
else
|
|
{
|
|
rt_kprintf("\r\nfile: %s \r\nsize: 0 bytes\r\nsend failed.\r\n",p);
|
|
}
|
|
rt_free(zf);
|
|
|
|
return;
|
|
}
|
|
|
|
/* init the parameters */
|
|
static void zsend_init(void)
|
|
{
|
|
rt_err_t res = -RT_ERROR;
|
|
|
|
zinit_parameter();
|
|
for(;;) /* wait ZPAD */
|
|
{
|
|
res = zread_line(800);
|
|
if (res == ZPAD) break;
|
|
}
|
|
for (;;)
|
|
{
|
|
res = zget_header(rx_header);
|
|
if (res == ZRINIT) break;
|
|
}
|
|
if ((rx_header[ZF1] & ZRQNVH))
|
|
{
|
|
zput_pos(0x80L); /* Show we can var header */
|
|
zsend_hex_header(ZRQINIT, tx_header);
|
|
}
|
|
Rxflags = rx_header[ZF0] & 0377;
|
|
if (Rxflags & CANFC32) Txfcs32 = 1; /* used 32bits CRC check */
|
|
|
|
if (ZF2_OP == ZTRLE && (Rxflags & CANRLE)) /* for RLE packet */
|
|
Txfcs32 = 2;
|
|
else
|
|
ZF2_OP = 0;
|
|
/* send SINIT cmd */
|
|
return;
|
|
}
|
|
|
|
/* send files */
|
|
static rt_err_t zsend_files(struct zfile *zf)
|
|
{
|
|
char *p,*q;
|
|
char *str = "/";
|
|
struct stat finfo;
|
|
rt_err_t res = -RT_ERROR;
|
|
|
|
if (zf->fname == RT_NULL)
|
|
{
|
|
rt_kprintf("\r\nerror: no file to be send.\r\n");
|
|
return res;
|
|
}
|
|
if ((zf->fd=open(zf->fname, DFS_O_RDONLY,0)) <0)
|
|
{
|
|
rt_kprintf("\r\ncan not open file:%s\r\n",zf->fname+1);
|
|
return res;
|
|
}
|
|
|
|
zf->file_end = 0;
|
|
++file_cnt;
|
|
/* extract file name */
|
|
p = zf->fname;
|
|
for (;;)
|
|
{
|
|
q = strstr(p,str);
|
|
if (q == RT_NULL) break;
|
|
p = q+1;
|
|
}
|
|
q = (char*)TX_BUFFER;
|
|
for (;;)
|
|
{
|
|
*q++ = *p++;
|
|
if (*p == 0) break;
|
|
}
|
|
*q++ = 0;
|
|
p=q;
|
|
while (q < (char*)(TX_BUFFER + 1024))
|
|
*q++ = 0;
|
|
/* get file attributes */
|
|
fstat(zf->fd,&finfo);
|
|
Left_sizes += finfo.st_size;
|
|
rt_sprintf(p, "%lu %lo %o 3 %d %ld", (long)finfo.st_size, finfo.st_mtime,
|
|
finfo.st_mode, file_cnt, Left_sizes);
|
|
Left_sizes -= finfo.st_size;
|
|
TX_BUFFER[127] = (finfo.st_size + 127) >>7;
|
|
TX_BUFFER[126] = (finfo.st_size + 127) >>15;
|
|
|
|
zsend_init();
|
|
/* start sending files */
|
|
res = zsend_file(zf,TX_BUFFER, (p-(char*)TX_BUFFER)+strlen(p)+1);
|
|
zsay_bibi();
|
|
close(zf->fd);
|
|
|
|
return res;
|
|
}
|
|
|
|
/* send file name and related info */
|
|
static rt_err_t zsend_file(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t len)
|
|
{
|
|
rt_uint8_t cnt;
|
|
rt_err_t res = -RT_ERROR;
|
|
|
|
for (cnt=0;cnt<5;cnt++)
|
|
{
|
|
tx_header[ZF0] = ZF0_CMD; /* file conversion option */
|
|
tx_header[ZF1] = ZF1_CMD; /* file management option */
|
|
tx_header[ZF2] = (ZF3_CMD|ZF2_OP); /* file transfer option */
|
|
tx_header[ZF3] = ZF3_CMD;
|
|
zsend_bin_header(ZFILE, tx_header);
|
|
zsend_bin_data(buf, len, ZCRCW);
|
|
loop:
|
|
res = zget_header(rx_header);
|
|
switch (res)
|
|
{
|
|
case ZRINIT:
|
|
while ((res = zread_line(50)) > 0)
|
|
{
|
|
if (res == ZPAD)
|
|
{
|
|
goto loop;
|
|
}
|
|
}
|
|
break;
|
|
case ZCAN:
|
|
case TIMEOUT:
|
|
case ZABORT:
|
|
case ZFIN:
|
|
break;
|
|
case -RT_ERROR:
|
|
case ZNAK:
|
|
break;
|
|
case ZCRC: /* no CRC request */
|
|
goto loop;
|
|
case ZFERR:
|
|
case ZSKIP:
|
|
break;
|
|
case ZRPOS: /* here we want */
|
|
zget_pos(Rxpos);
|
|
Txpos = Rxpos;
|
|
return(zsend_file_data(zf));
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/* send the file data */
|
|
static rt_err_t zsend_file_data(struct zfile *zf)
|
|
{
|
|
rt_int16_t cnt;
|
|
rt_uint8_t cmd;
|
|
rt_err_t res = -RT_ERROR;
|
|
/* send ZDATA packet, start to send data */
|
|
start_send:
|
|
zput_pos(Txpos);
|
|
zsend_bin_header(ZDATA, tx_header);
|
|
do
|
|
{
|
|
cnt = zfill_buffer(zf,TX_BUFFER,RX_BUFFER_SIZE);
|
|
if (cnt < RX_BUFFER_SIZE )
|
|
cmd = ZCRCE;
|
|
else
|
|
cmd = ZCRCG;
|
|
zsend_bin_data(TX_BUFFER, cnt, cmd);
|
|
zf->bytes_received= Txpos += cnt;
|
|
if (cmd == ZCRCW)
|
|
goto get_syn1;
|
|
} while (cnt == RX_BUFFER_SIZE);
|
|
for (;;) /* get ack and check if send finish */
|
|
{
|
|
zput_pos(Txpos);
|
|
zsend_bin_header(ZEOF, tx_header);
|
|
get_syn1:
|
|
res = zget_sync();
|
|
switch (res)
|
|
{
|
|
case ZACK:
|
|
goto get_syn1;
|
|
case ZNAK:
|
|
continue;
|
|
case ZRPOS: /* resend here */
|
|
lseek(zf->fd,Txpos,0);
|
|
goto start_send;
|
|
case ZRINIT: /* send finish,then begin to send next file */
|
|
return RT_EOK;
|
|
case ZSKIP:
|
|
case -RT_ERROR:
|
|
return res;
|
|
default:
|
|
return res;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* fill file data to buffer*/
|
|
static rt_uint16_t zfill_buffer(struct zfile *zf, rt_uint8_t *buf, rt_uint16_t size)
|
|
{
|
|
return (read(zf->fd,buf,size));
|
|
}
|
|
|
|
/* wait sync(ack) from the receiver */
|
|
static rt_err_t zget_sync(void)
|
|
{
|
|
rt_err_t res = -RT_ERROR;
|
|
|
|
for (;;)
|
|
{
|
|
res = zget_header(rx_header);
|
|
switch (res)
|
|
{
|
|
case ZCAN:
|
|
case ZABORT:
|
|
case ZFIN:
|
|
case TIMEOUT:
|
|
return -RT_ERROR;
|
|
case ZRPOS: /* get pos, need to resend */
|
|
zget_pos(Rxpos);
|
|
Txpos = Rxpos;
|
|
return res;
|
|
case ZACK:
|
|
return res;
|
|
case ZRINIT: /* get ZRINIT indicate that the prev file send completed */
|
|
return res;
|
|
case ZSKIP:
|
|
return res;
|
|
case -RT_ERROR:
|
|
default:
|
|
zsend_bin_header(ZNAK, tx_header);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* say "bibi" to the receiver */
|
|
static void zsay_bibi(void)
|
|
{
|
|
for (;;)
|
|
{
|
|
zput_pos(0L); /* reninit position of next file*/
|
|
zsend_hex_header(ZFIN, tx_header); /* send finished session cmd */
|
|
switch (zget_header(rx_header))
|
|
{
|
|
case ZFIN:
|
|
zsend_line('O');
|
|
zsend_line('O');
|
|
case ZCAN:
|
|
case TIMEOUT:
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
/* end of sz.c */
|