#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <errno.h>
#include <string.h>
#define GPRSTTY "/dev/ttyS1"
#define BUFSIZE 500
#define ATREADTIMES 5
#define ATTRYTIMES 5
void setTermios(struct termios * pNewtio, short uBaudRate)
{
bzero(pNewtio, sizeof(struct termios)); /* clear struct for new portsettings */
pNewtio->c_cflag = uBaudRate | CS8 | CREAD | CLOCAL;
pNewtio->c_iflag = IGNPAR;
pNewtio->c_oflag = 0;
pNewtio->c_lflag = 0; //non ICANON
/*
initialize all control characters
we don't need them here
*/
pNewtio->c_cc[VINTR] = 0; /* Ctrl-c */
pNewtio->c_cc[VQUIT] = 0; /* Ctrl-\ */
pNewtio->c_cc[VERASE] = 0; /* del */
pNewtio->c_cc[VKILL] = 0; /* @ */
pNewtio->c_cc[VEOF] = 4; /* Ctrl-d */
pNewtio->c_cc[VTIME] = 5; /* inter-character timer, timeout
VTIME*0.1 */
pNewtio->c_cc[VMIN] = 0; /* blocking read until VMIN character
arrives */
pNewtio->c_cc[VSWTC] = 0; /* '\0' */
pNewtio->c_cc[VSTART] = 0; /* Ctrl-q */
pNewtio->c_cc[VSTOP] = 0; /* Ctrl-s */
pNewtio->c_cc[VSUSP] = 0; /* Ctrl-z */
pNewtio->c_cc[VEOL] = 0; /* '\0' */
pNewtio->c_cc[VREPRINT] = 0; /* Ctrl-r */
pNewtio->c_cc[VDISCARD] = 0; /* Ctrl-u */
pNewtio->c_cc[VWERASE] = 0; /* Ctrl-w */
pNewtio->c_cc[VLNEXT] = 0; /* Ctrl-v */
pNewtio->c_cc[VEOL2] = 0; /* '\0' */
}
int sendSMS(const char * strAlarmMobile, const char * strAlarmMessage)
{
int fd,nTotal,i;
struct termios oldtio,newtio;
char strATResult[BUFSIZE];
char strAT[BUFSIZE];
struct timeval tv;
//1、打开 GPRS Modem 连接的串口,进行相关设置,如波特率等,保存原有串口设置;
if ( (fd = open(GPRSTTY,O_RDWR | O_NOCTTY ))<0){
printf("Can't Open Serial Port!GPRSTTY\n");
return -1;
}
else{
tcgetattr(fd,&oldtio); /* save current serial port settings */
setTermios(&newtio,B9600);
tcflush(fd, TCIFLUSH);
tcsetattr(fd,TCSANOW,&newtio);
sprintf(strAT,"at+cmgf=1%c%c",0x0d,0x0a);
nTotal=0;
while (ATComUntilStr(fd,strAT,"OK",strATResult,
ATREADTIMES)!= 0) {
if ((nTotal++)<ATTRYTIMES)
continue;
else
goto sendSMSEND;
}
/* sprintf(strAT,"at+csca=\"%s\"%c%c",strSMSServer,0x0d,0x0a);
nTotal=0;
while (ATComUntilStr(fd,strAT,"OK",
strATResult,ATREADTIMES)!= 0) {
if ((nTotal++)<ATTRYTIMES)
continue;
else
goto sendSMSEND;
}*/
//send message
i=0;
while (1){
sprintf(strAT,"at+cmgs=\"%s\"%c%c",strAlarmMobile,0x0d,0x0a);
nTotal=0;
while (ATComUntilStr(fd,strAT,">",strATResult,ATREADTIMES)!= 0){
if ((nTotal++)<ATTRYTIMES)
continue;
else
goto sendSMSEND;
}
sprintf(strAT,"%s%c",strAlarmMessage,0x1a);
if (ATComUntilStr(fd,strAT,"OK" ,strATResult,ATREADTIMES*3)!= 0){
if ((i++)<ATTRYTIMES)
continue;
else
goto sendSMSEND;
}
else
break;
}
sendSMSEND:
//3、恢复原有的串口设置。
tcsetattr(fd,TCSANOW,&oldtio);
close(fd);
return 0;
}
}
int ATComUntilStr(int fd, const char * strATCommand, const char * strPrompt,
char * strResult, int nATReadTimes)
{
int nRes,ch,nTotal;
char strAT[BUFSIZE];
write(fd,strATCommand,strlen(strATCommand));
nTotal=0;
nRes=0;
ch=0;
while (1)
{
nRes = read(fd,strAT,BUFSIZE-nTotal);
if (nRes>0){
strAT[nRes]=0;
memcpy(strResult+nTotal,strAT,nRes);
nTotal+=nRes;
ch=0;
}
else {
if (ch++==nATReadTimes)
break;
}
}
strResult[nTotal]=0;
//check if OK
if (strstr(strResult,strPrompt)!=NULL)
return 0;
else
return -1;
}
int main(int argc, char* argv[])
{
char* telno="136＊＊＊＊＊＊＊＊"; ／／自己填号码
char* sm="alarm!!";
int ret;
ret=sendSMS(telno,sm);
return ret;
}
