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M7350/wlan/8192es/DriverSrcPkg/Users/mp-daemon/UDPserver.c

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M7350v7_en_gpl
2024-09-09 08:59:52 +00:00
//=============================================================================
// Copyright (c) 2006 Realtek Semiconductor Corporation. All Rights Reserved.
//
// Title:
// UDPserver.c
// Desc:
// UDP server : accepts MP commands from the client
//=============================================================================
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/ioctl.h>
#include <linux/if.h>
#include <linux/wireless.h>
#include <fcntl.h>
#include <unistd.h>
#include "rtk_arch.h"
#ifndef WIN32
#define __PACK__ __attribute__ ((packed))
#else
#define __PACK__
#endif
#define TP_MAX_STR_LEN 500
#define MYPORT 9034 // the port users will be connecting to
#define BUFLEN 1024 // length of the buffer
#define MP_TX_PACKET 0x8B71
#define MP_BRX_PACKET 0x8B73
#define MP_QUERY_STATS 0x8B6D
#define RTL8190_IOCTL_WRITE_REG 0x89f3
#define RTL8190_IOCTL_READ_REG 0x89f4
#define MP_CONTIOUS_TX 0x8B66
#define MP_TXPWR_TRACK 0x8B6E
#define MP_QUERY_TSSI 0x8B6F
#define MP_QUERY_THER 0x8B77
#define FLASH_DEVICE_NAME ("/dev/mtd")
#define FLASH_DEVICE_NAME1 ("/dev/mtdblock1")
#define HW_SETTING_HEADER_TAG ((char *)"hs")
#define HW_SETTING_OFFSET 0x6000
#define DEFAULT_SETTING_OFFSET 0x8000
#define CURRENT_SETTING_OFFSET 0xc000
#if 1
#define TAG_LEN 2
#define SIGNATURE_LEN 4
#define HW_SETTING_VER 3 // hw setting version
/* Config file header */
typedef struct param_header {
unsigned char signature[SIGNATURE_LEN]; // Tag + version
unsigned short len __PACK__;
} __PACK__ PARAM_HEADER_T, *PARAM_HEADER_Tp;
PARAM_HEADER_T hsHeader;
#endif
#if 0
/* Do checksum and verification for configuration data */
#ifndef WIN32
static inline unsigned char CHECKSUM(unsigned char *data, int len)
#else
__inline unsigned char CHECKSUM(unsigned char *data, int len)
#endif
{
int i;
unsigned char sum=0;
for (i=0; i<len; i++)
sum += data[i];
sum = ~sum + 1;
return sum;
}
#ifndef WIN32
static inline int CHECKSUM_OK(unsigned char *data, int len)
#else
__inline int CHECKSUM_OK(unsigned char *data, int len)
#endif
{
int i;
unsigned char sum=0;
for (i=0; i<len; i++)
sum += data[i];
if (sum == 0)
return 1;
else
return 0;
}
/////////////////////////////////////////////////////////////////////////////////
static int flash_read(char *buf, int offset, int len)
{
int fh;
int ok=1;
fh = open(FLASH_DEVICE_NAME, O_RDWR);
if ( fh == -1 )
return 0;
lseek(fh, offset, SEEK_SET);
if ( read(fh, buf, len) != len)
ok = 0;
close(fh);
return ok;
}
////////////////////////////////////////////////////////////////////////////////
static int flash_write(char *buf, int offset, int len)
{
int fh;
int ok=1;
fh = open(FLASH_DEVICE_NAME, O_RDWR);
if ( fh == -1 )
return 0;
lseek(fh, offset, SEEK_SET);
if ( write(fh, buf, len) != len)
ok = 0;
close(fh);
sync();
return ok;
}
int ReadSinguture(void)
{
int ver;
char *buff;
// Read hw setting
if ( flash_read((char *)&hsHeader, HW_SETTING_OFFSET, sizeof(hsHeader))==0 ) {
printf("Read hw setting header failed!\n");
return NULL;
}
if ( sscanf(&hsHeader.signature[TAG_LEN], "%02d", &ver) != 1)
ver = -1;
if ( memcmp(hsHeader.signature, HW_SETTING_HEADER_TAG, TAG_LEN) || // invalid signatur
(ver != HW_SETTING_VER) ) { // length is less than current
printf("Invalid hw setting signature or version number [sig=%c%c, ver=%d, len=%d]!\n", hsHeader.signature[0],
hsHeader.signature[1], ver, hsHeader.len);
return NULL;
}
//printf("hw setting signature or version number [sig=%c%c, ver=%d, len=%d]!\n", hsHeader.signature[0], hsHeader.signature[1], ver, hsHeader.len);
buff = calloc(1, hsHeader.len);
if ( buff == 0 ) {
printf("Allocate buffer failed!\n");
return NULL;
}
if ( flash_read(buff, HW_SETTING_OFFSET+sizeof(hsHeader), hsHeader.len)==0 ) {
printf("Read hw setting failed!\n");
free(buff);
return NULL;
}
if ( !CHECKSUM_OK(buff, hsHeader.len) ) {
printf("Invalid checksum of hw setting!\n");
free(buff);
return NULL;
}
//printf("CS=%x\n",buff[hsHeader.len-1]);
}
#endif
/*
* Wrapper to extract some Wireless Parameter out of the driver
*/
static inline int iw_get_ext(int skfd, /* Socket to the kernel */
char *ifname, /* Device name */
int request, /* WE ID */
struct iwreq *pwrq) /* Fixed part of the request */
{
strncpy(pwrq->ifr_name, ifname, IFNAMSIZ); /* Set device name */
return(ioctl(skfd, request, pwrq)); /* Do the request */
}
static char *get_str_token(char *data, char *token, char split)
{
char *ptr=data;
int len=0, idx=0;
while (*ptr && *ptr != '\n' ) {
if (*ptr == split) {
if (len <= 1)
return NULL;
memcpy(token, data, len);
/* delete ending space */
for (idx=len-1; idx>=0; idx--) {
if (token[idx] != ' ')
break;
}
token[idx+1] = '\0';
return ptr+1;
}
len++;
ptr++;
}
return NULL;
}
static int get_str_value(char *data, char *value)
{
char *ptr=data;
int len=0, idx, i;
while (*ptr && *ptr != '\n' && *ptr != '\r') {
len++;
ptr++;
}
/* delete leading space */
idx = 0;
while (len-idx > 0) {
if (data[idx] != ' ')
break;
idx++;
}
len -= idx;
/* delete bracing '"' */
if (data[idx] == '"') {
for (i=idx+len-1; i>idx; i--) {
if (data[i] == '"') {
idx++;
len = i - idx;
}
break;
}
}
if (len > 0) {
memcpy(value, &data[idx], len);
value[len] = '\0';
}
return len;
}
char* deblank(char* input)
{
char *output = input;
int i, j;
for (i=0, j=0; i < strlen(input); i++, j++)
{
if (input[i] != ' ')
output[j] = input[i];
else
j--;
}
output[j]='\0';
return output;
}
int MP_get_ext(char *ifname, char *buf, unsigned int ext_num)
{
int skfd;
struct iwreq wrq;
skfd = socket(AF_INET, SOCK_DGRAM, 0);
wrq.u.data.pointer = (caddr_t)buf;
wrq.u.data.length = strlen(buf);
if (iw_get_ext(skfd, ifname, ext_num, &wrq) < 0) {
printf("MP_get_ext failed\n");
return -1;
}
close(skfd);
return 0;
}
enum content_type {
EFUSE_TYPE,
FLASH_TYPE,
MIB_TYPE,
NONE_TYPE
};
typedef struct map_def_s
{
char name[30];
char map_name[30];
char type;
} map_def_t;
static const map_def_t cmd_mib_defs[] =
{
{"11N_XCAP", "xcap", MIB_TYPE},
{"11N_THER", "ther", MIB_TYPE},
{"TX_POWER_CCK_A", "pwrlevelCCK_A",MIB_TYPE},
{"TX_POWER_CCK_B", "pwrlevelCCK_B", MIB_TYPE},
{"TX_POWER_HT40_1S_A", "pwrlevelHT40_1S_A", MIB_TYPE},
{"TX_POWER_HT40_1S_B", "pwrlevelHT40_1S_B", MIB_TYPE},
{"TX_POWER_DIFF_HT40_2S", "pwrdiffHT40_2S", MIB_TYPE},
{"TX_POWER_DIFF_HT20", "pwrdiffHT20", MIB_TYPE},
{"TX_POWER_DIFF_OFDM", "pwrdiffOFDM", MIB_TYPE},
{"WLAN_ADDR", "hwaddr", MIB_TYPE},
{"NIC1_ADDR", "hwaddr", MIB_TYPE},
{"11N_TRSWPAE_C9", "trswitch", MIB_TYPE},
{"11N_TRSWPAE_CC", "trswitch", MIB_TYPE},
{"REG_DOMAIN", "dot11RegDomain", MIB_TYPE},
};
static const map_def_t cmd_efuse_defs[] =
{
{"11N_XCAP", "HW_11N_XCAP", EFUSE_TYPE},
{"11N_THER", "HW_11N_THER", EFUSE_TYPE},
{"TX_POWER_CCK_A", "HW_TX_POWER_CCK_A", EFUSE_TYPE},
{"TX_POWER_CCK_B", "HW_TX_POWER_CCK_B", EFUSE_TYPE},
{"TX_POWER_HT40_1S_A", "HW_TX_POWER_HT40_1S_A", EFUSE_TYPE},
{"TX_POWER_HT40_1S_B", "HW_TX_POWER_HT40_1S_B", EFUSE_TYPE},
{"TX_POWER_DIFF_HT40_2S", "pwrdiffHT40_2S", EFUSE_TYPE},
{"TX_POWER_DIFF_HT20", "HW_TX_POWER_DIFF_HT20_A", EFUSE_TYPE},
{"TX_POWER_DIFF_OFDM", "HW_TX_POWER_DIFF_HT20_OFDM_A", EFUSE_TYPE},
{"WLAN_ADDR", "hwaddr", FLASH_TYPE},
{"NIC1_ADDR", "hwaddr", FLASH_TYPE},
{"11N_TRSWPAE_C9", "trswitch", FLASH_TYPE},
{"11N_TRSWPAE_CC", "trswitch", FLASH_TYPE},
{"REG_DOMAIN", "dot11RegDomain", FLASH_TYPE},
};
static void get_drv_mib_content(char *path, char *mib, char *mib_value)
{
FILE *fp;
char line[400], token[40], value[300], *ptr;
fp = fopen(path, "r");
if (fp == NULL) {
printf("read config file [%s] failed!\n", path);
return;
}
while ( fgets(line, 200, fp) ) {
ptr = get_str_token(line, token, ':');
if (ptr == NULL)
continue;
if (get_str_value(ptr, value) == 0) {
continue;
} else {
deblank(token);
if ( strcmp(mib, token) == 0 )
{
printf("tok:[%s] mib:[%s] val:[%s]\n", token, mib, value);
strcpy(mib_value, value);
goto out;
}
}
}
out:
fclose(fp);
}
static int convert_str_map(char *str, char *id, map_def_t cmd_map_ptr[], int sz)
{
int i; //, sz = sizeof(cmd_map_ptr) / sizeof(struct map_def_s);
for (i = 0; i < sz; i++) {
if( strstr(str, cmd_map_ptr[i].name) != NULL ) {
// printf("convert [%s] to [%s]\n", str, cmd_map_ptr[i].name);
strcpy(id, cmd_map_ptr[i].map_name);
return cmd_map_ptr[i].type;
}
}
strcpy(id, "unsupported");
return NONE_TYPE;
}
static void read_mib_content_from_drv(char *str, char *mib_value)
{
char file_name[40];
char full_path[100];
char mib[64];
char wlan_idx=0;
sscanf(str, "HW_WLAN%d", &wlan_idx);
printf("get wlan idx:%d str:%s\n", wlan_idx, str);
sprintf(full_path, "%s%d/%s", "/proc/wlan", wlan_idx, "mib_all");
convert_str_map( str, mib, cmd_mib_defs, sizeof(cmd_mib_defs) / sizeof(struct map_def_s));
get_drv_mib_content(full_path, mib, mib_value);
}
static void write_mib_content_to_drv(char *str, char *run_cmd)
{
char efuse[64];
char token[40], value[300], *ptr;
char wlan_idx=0;
char type;
sscanf(str, "HW_WLAN%d", &wlan_idx);
// printf("get wlan idx:%d str:%s\n", wlan_idx, str);
ptr = get_str_token(str, token, ' ');
if (ptr == NULL)
return;
if (get_str_value(ptr, value) == 0)
return;
type = convert_str_map( (token + strlen("HW_WLAN0_")), efuse, cmd_efuse_defs, sizeof(cmd_efuse_defs) / sizeof(struct map_def_s));
deblank(value);
// printf("get flash:[%s] val:[%s] mib:[%s]\n", token, value, efuse);
if (FLASH_TYPE == type) {
sprintf(run_cmd, "echo flash wlan%d write %s=%s", wlan_idx, efuse, value);
} else if (EFUSE_TYPE == type) {
sprintf(run_cmd, "echo iwpriv wlan%d efuse_set %s=%s", wlan_idx, efuse, value);
}
return;
// get_drv_mib_content(full_path, mib, mib_value);
}
int main(void) {
int sockfd; // socket descriptors
struct sockaddr_in my_addr; // my address information
struct sockaddr_in their_addr; // connector<6F><72>s address information
socklen_t addr_len;
int numbytes;
FILE *fp;
char buf[BUFLEN], buf_tmp[BUFLEN],*pbuf,
pre_result[BUFLEN]; // buffer that stores message
static char cmdWrap[TP_MAX_STR_LEN];
static int rwHW=0;
static int is_run=1;
// create a socket
if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
perror("socket");
exit(1);
}
my_addr.sin_family = AF_INET; // host byte order
my_addr.sin_port = htons(MYPORT); // short, network byte order
my_addr.sin_addr.s_addr = INADDR_ANY; // automatically fill with my IP
memset(&(my_addr.sin_zero), '\0', 8); // zero the rest of the struct
// bind the socket with the address
if (bind(sockfd, (struct sockaddr *)&my_addr,
sizeof(struct sockaddr)) == -1) {
perror("bind");
close(sockfd);
exit(1);
}
addr_len = sizeof(struct sockaddr);
printf("MP AUTOMATION daemon (ver 1.2)\n");
//Self reading flash!!!
#if 0
if(!ReadSinguture())
{
printf("HW Settting Error!!\n");
}
#endif
// main loop : wait for the client
while (1) {
//receive the command from the client
memset(buf, 0, BUFLEN);
memset(cmdWrap, 0, TP_MAX_STR_LEN);
rwHW = 0;
is_run = 1;
if ((numbytes = recvfrom(sockfd, buf, BUFLEN, 0,
(struct sockaddr *)&their_addr, &addr_len)) == -1) {
fprintf(stderr,"Receive failed!!!\n");
close(sockfd);
exit(1);
}
printf("received command 1 (%s) from IP:%s\n", buf, inet_ntoa(their_addr.sin_addr));
if(!memcmp(buf, "orf", 3)){
strncat(buf, " > " WIFI_MP_TMP_FILE,BUFLEN);
system(buf);
}
if(!memcmp(buf, "irf", 3)){
strncat(buf, " > " WIFI_MP_TMP_FILE,BUFLEN);
system(buf);
}
if (!memcmp(buf, "ther", 4)) {
strcpy(buf, pre_result);
}
if (!memcmp(buf, "tssi", 4)) {
strcpy(buf, pre_result);
}
if (!memcmp(buf, "query", 5)) {
strcpy(buf, pre_result);
}
if(!memcmp(buf, "cat", 3)){
if(NULL != (pbuf=strstr(buf, ".//proc//")))
{
pbuf[0]=' ';
}
strncat(buf, " > " WIFI_MP_TMP_FILE,BUFLEN);
system(buf);
}
#if 1 //wlan0
if (!memcmp(buf, "iwpriv wlan0 mp_tssi", 20)) {
strcpy(buf, pre_result);
MP_get_ext("wlan0", buf_tmp, MP_QUERY_TSSI);
strcpy(buf, buf_tmp);
printf("buf= %s\n",buf);
usleep(1000);
}
else if (!memcmp(buf, "iwpriv wlan0 mp_ther", 20)) {
strcpy(buf, pre_result);
MP_get_ext("wlan0", buf_tmp, MP_QUERY_THER);
strcpy(buf, buf_tmp);
printf("buf= %s\n",buf);
usleep(1000);
}
else if (!memcmp(buf, "iwpriv wlan0 mp_query", 21)) {
strcpy(buf, pre_result);
MP_get_ext("wlan0", buf_tmp, MP_QUERY_STATS);
strcpy(buf, buf_tmp);
usleep(1000);
printf("w0 2b= %s\n",buf);
}
#endif
#if 1 //wlan1
else if (!memcmp(buf, "iwpriv wlan1 mp_tssi", 20)) {
strcpy(buf, pre_result);
MP_get_ext("wlan1", buf_tmp, MP_QUERY_TSSI);
strcpy(buf, buf_tmp);
printf("buf= %s\n",buf);
usleep(1000);
}
else if (!memcmp(buf, "iwpriv wlan1 mp_ther", 20)) {
strcpy(buf, pre_result);
MP_get_ext("wlan1", buf_tmp, MP_QUERY_THER);
strcpy(buf, buf_tmp);
printf("buf= %s\n",buf);
usleep(1000);
}
else if (!memcmp(buf, "iwpriv wlan1 mp_query", 21)) {
strcpy(buf, pre_result);
MP_get_ext("wlan1", buf_tmp, MP_QUERY_STATS);
strcpy(buf, buf_tmp);
usleep(1000);
printf("w1 2b= %s\n",buf);
}
#endif
else
{
if ( (!memcmp(buf, "flash read", 10)) ) {
is_run = 0;
if ((fp = fopen(WIFI_MP_TMP_FILE, "r")) == NULL)
fprintf(stderr, "opening " WIFI_MP_TMP_FILE " failed !\n");
if (fp) {
fgets(buf, BUFLEN, fp);
buf[BUFLEN-1] = '\0';
fclose(fp);
}
snprintf(pre_result,BUFLEN, "data:%s", buf);
}
//ack to the client
else if (!memcmp(buf, "flash get", 9))
snprintf(pre_result,BUFLEN, "%s > " WIFI_MP_TMP_FILE " ok", buf);
else {
snprintf(pre_result,BUFLEN, "%s ok", buf);
}
if (!memcmp(buf, "iwpriv wlan0 mp_brx stop", 24)) {
strcpy(buf, "stop");
MP_get_ext("wlan0", buf, MP_BRX_PACKET);
}
else if (!memcmp(buf, "iwpriv wlan0 mp_tx", 18) && buf[18] == ' ') {
memcpy(buf_tmp, buf+19, strlen(buf)-19);
MP_get_ext("wlan0", buf_tmp, MP_TX_PACKET);
strcpy(buf, buf_tmp);
}
else if (!memcmp(buf, "iwpriv wlan0 mp_ctx", 19) && buf[19] == ' ') {
memcpy(buf_tmp, buf+20, strlen(buf)-20);
MP_get_ext("wlan0", buf_tmp, MP_CONTIOUS_TX);
strcpy(buf, buf_tmp);;
}
else if(!memcmp(buf, "iwpriv wlan0 read_reg", 21)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
else if(!memcmp(buf, "iwpriv wlan0 read_rf", 20)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
else if(!memcmp(buf, "iwpriv wlan0 mp_psd", 19)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
system("cat /tmp/MP.txt");
}
else if(!memcmp(buf, "iwpriv wlan0 efuse_get", 22)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
else if(!memcmp(buf, "iwpriv wlan0 efuse_set", 22)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
else if(!memcmp(buf, "iwpriv wlan0 efuse_sync", 23)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
else if(!memcmp(buf, "iwpriv wlan0 get_mib use_efuse", 30)) {
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
#if 1 //wlan 1
else if (!memcmp(buf, "iwpriv wlan1 mp_brx stop", 24)) {
strcpy(buf, "stop");
MP_get_ext("wlan1", buf, MP_BRX_PACKET);
}
else if (!memcmp(buf, "iwpriv wlan1 mp_tx", 18) && buf[18] == ' ') {
memcpy(buf_tmp, buf+19, strlen(buf)-19);
MP_get_ext("wlan1", buf_tmp, MP_TX_PACKET);
strcpy(buf, buf_tmp);
}
else if (!memcmp(buf, "iwpriv wlan1 mp_ctx", 19) && buf[19] == ' ') {
memcpy(buf_tmp, buf+20, strlen(buf)-20);
MP_get_ext("wlan1", buf_tmp, MP_CONTIOUS_TX);
strcpy(buf, buf_tmp);;
}
else if(!memcmp(buf, "iwpriv wlan1 read_reg", 21)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
else if(!memcmp(buf, "iwpriv wlan1 read_rf", 20)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
else if(!memcmp(buf, "iwpriv wlan1 mp_psd", 19)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
system("cat /tmp/MP.txt");
}
else if(!memcmp(buf, "iwpriv wlan1 efuse_get", 22)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
else if(!memcmp(buf, "iwpriv wlan1 efuse_set", 22)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
else if(!memcmp(buf, "iwpriv wlan1 efuse_sync", 23)){
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
system(buf);
}
#endif
else if (!memcmp(buf, "probe", 5))
strcpy(buf, "ack");
else if (!memcmp(buf, "verify_flw", 10)) {
if ((fp = fopen(WIFI_MP_TMP_FILE, "r")) == NULL)
fprintf(stderr, "opening " WIFI_MP_TMP_FILE " failed !\n");
if (fp) {
fgets(buf, BUFLEN, fp);
buf[BUFLEN-1] = '\0';
fclose(fp);
}
}
else
{
#if 0
if (!memcmp(buf, "flash get", 9))
strncat(buf, " > " WIFI_MP_TMP_FILE, BUFLEN);
#endif
if (!memcmp(buf, "flash get", 9))
{
char mib_val[64];
read_mib_content_from_drv(buf+10, mib_val);
// sprintf(cmdWrap, "flash gethw %s", buf+10);
snprintf(cmdWrap, TP_MAX_STR_LEN, "echo %s=%s", buf+10, mib_val);
rwHW = 1;
////strcat(buf, " > " WIFI_MP_TMP_FILE);
strncat(cmdWrap, " > " WIFI_MP_TMP_FILE, TP_MAX_STR_LEN);
}
if (!memcmp(buf, "flash set", 9))
{
// sprintf(cmdWrap, "flash sethw %s", buf+10);
write_mib_content_to_drv(buf+10, cmdWrap);
// sprintf(cmdWrap, "echo %s", buf+10);
rwHW = 1;
//printf("1 sent command (%s) to IP:%s\n", pre_result, inet_ntoa(their_addr.sin_addr));
if ((numbytes = sendto(sockfd, pre_result, strlen(pre_result), 0,
(struct sockaddr *)&their_addr, sizeof(struct sockaddr))) == -1) {
fprintf(stderr, "send failed\n");
close(sockfd);
exit(1);
}
//printf("2 sent command (%s) to IP:%s\n", pre_result, inet_ntoa(their_addr.sin_addr));
}
if(rwHW == 1)
{
//printf("UDP Server cmdWrap=%s\n",cmdWrap);
system(cmdWrap);
}
else
{
// printf("UDP Server buf=%s\n",buf);
if ( is_run )
system(buf);
}
//delay
//open(/tmp/abc.txt)
}
strcpy(buf_tmp, pre_result);
strcpy(pre_result, buf);
strcpy(buf, buf_tmp);
//printf("UDP Server buf=%s pre_result=%s\n",buf,pre_result);
}
if (memcmp(buf, "flash set", 9) != 0) {
//printf("1 sent command (%s) to IP:%s\n", buf, inet_ntoa(their_addr.sin_addr));
//printf("UDP Server_5 buf=%s\n",buf);
if ((numbytes = sendto(sockfd, buf, strlen(buf), 0,
(struct sockaddr *)&their_addr, sizeof(struct sockaddr))) == -1) {
fprintf(stderr, "send failed\n");
//printf("UDP Server_5_1\n");
close(sockfd);
exit(1);
}
//printf("UDP Server_6\n");
//printf("2 sent command (%s) to IP:%s\n", buf, inet_ntoa(their_addr.sin_addr));
}
//printf("UDP Server_7\n");
}
return 0;
}
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