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rt-thread-official
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fix some tftp bug. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@189 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong 2009-12-02 23:32:42 +00:00
parent 720181e417
commit 6ef065c755
1 changed files with 38 additions and 25 deletions
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63
net/apps/tftp.c
View File

@ -1,3 +1,4 @@
#include <rtthread.h>
#include <dfs_posix.h>
#include <lwip/sockets.h>
@ -13,17 +14,16 @@
rt_uint8_t tftp_buffer[512 + 4];
/* tftp client */
void tftp_get(const char* host, const char* filename)
void tftp_get(const char* host, const char* dir, const char* filename)
{
int fd, sock_fd;
int fd, sock_fd, sock_opt;
struct sockaddr_in tftp_addr, from_addr;
rt_uint32_t length;
socklen_t fromlen;
/* make local file name */
getcwd((char*)tftp_buffer, sizeof(tftp_buffer));
strcat((char*)tftp_buffer, "/");
strcat((char*)tftp_buffer, filename);
rt_snprintf((char*)tftp_buffer, sizeof(tftp_buffer),
"%s/%s", dir, filename);
/* open local file for write */
fd = open((char*)tftp_buffer, O_RDWR, 0);
@ -46,6 +46,10 @@ void tftp_get(const char* host, const char* filename)
return ;
}
/* set socket option */
sock_opt = 5000; /* 5 seconds */
lwip_setsockopt(sock_fd, SOL_SOCKET, SO_RCVTIMEO, &sock_opt, sizeof(sock_opt));
/* make tftp request */
tftp_buffer[0] = 0; /* opcode */
tftp_buffer[1] = TFTP_RRQ; /* RRQ */
@ -67,7 +71,7 @@ void tftp_get(const char* host, const char* filename)
if (length > 0)
{
write(fd, &tftp_buffer[4], length - 4);
write(fd, (char*)&tftp_buffer[4], length - 4);
rt_kprintf("#");
/* make ACK */
@ -76,24 +80,26 @@ void tftp_get(const char* host, const char* filename)
lwip_sendto(sock_fd, tftp_buffer, 4, 0,
(struct sockaddr *)&from_addr, fromlen);
}
} while (length != 516);
} while (length == 516);
if (length == 0) rt_kprintf("timeout\n");
else rt_kprintf("done\n");
close(fd);
lwip_close(sock_fd);
}
FINSH_FUNCTION_EXPORT(tftp_get, get file from tftp server);
void tftp_put(const char* host, const char* filename)
void tftp_put(const char* host, const char* dir, const char* filename)
{
int fd, sock_fd;
int fd, sock_fd, sock_opt;
struct sockaddr_in tftp_addr, from_addr;
rt_uint32_t length, block_number = 0;
socklen_t fromlen;
/* make local file name */
getcwd((char*)tftp_buffer, sizeof(tftp_buffer));
strcat((char*)tftp_buffer, "/");
strcat((char*)tftp_buffer, filename);
rt_snprintf((char*)tftp_buffer, sizeof(tftp_buffer),
"%s/%s", dir, filename);
/* open local file for write */
fd = open((char*)tftp_buffer, O_RDONLY, 0);
@ -107,8 +113,7 @@ void tftp_put(const char* host, const char* filename)
inet_aton(host, (struct in_addr*)&(tftp_addr.sin_addr));
tftp_addr.sin_family = AF_INET;
tftp_addr.sin_port = htons(TFTP_PORT);
tftp_addr.sin_addr.s_addr = htonl(tftp_addr.sin_addr.s_addr);
sock_fd = socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP);
if (sock_fd < 0)
{
@ -116,7 +121,11 @@ void tftp_put(const char* host, const char* filename)
rt_kprintf("can't create a socket\n");
return ;
}
/* set socket option */
sock_opt = 5000; /* 5 seconds */
lwip_setsockopt(sock_fd, SOL_SOCKET, SO_RCVTIMEO, &sock_opt, sizeof(sock_opt));
/* make tftp request */
tftp_buffer[0] = 0; /* opcode */
tftp_buffer[1] = TFTP_WRQ; /* WRQ */
@ -144,16 +153,17 @@ void tftp_put(const char* host, const char* filename)
return;
}
do
block_number = 1;
while (1)
{
rt_uint16_t *ptr;
ptr = (rt_uint16_t*)&tftp_buffer[0];
length = read(fd, &tftp_buffer[4], 512);
length = read(fd, (char*)&tftp_buffer[4], 512);
if (length > 0)
{
/* make opcode and block number */
*ptr = TFTP_DATA; *(ptr + 1) = block_number;
tftp_buffer[0] = 0; tftp_buffer[1] = TFTP_DATA;
tftp_buffer[2] = (block_number >> 8) & 0xff;
tftp_buffer[3] = block_number & 0xff;
lwip_sendto(sock_fd, tftp_buffer, length + 4, 0,
(struct sockaddr *)&tftp_addr, fromlen);
@ -165,7 +175,10 @@ void tftp_put(const char* host, const char* filename)
(struct sockaddr *)&from_addr, &fromlen);
if (length > 0)
{
if (*ptr == TFTP_ACK && *(ptr + 1) == block_number)
if ((tftp_buffer[0] == 0 &&
tftp_buffer[1] == TFTP_ACK &&
tftp_buffer[3] == (block_number >> 8) & 0xff) &&
tftp_buffer[2] == (block_number & 0xff))
{
block_number ++;
}
@ -175,8 +188,8 @@ void tftp_put(const char* host, const char* filename)
break;
}
}
} while (length != 516);
}
close(fd);
lwip_close(sock_fd);
}