📄 status.c
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#include <stdio.h>#include <unistd.h>#include <string.h>#include <stdlib.h>#include "seril.h"int GetPowerStatus(char *);static cbyte[2] = { 0x01 , 0x10 };int main(){ int i,file_fd,fd,num,j = 100,k=0; char Temp_Buf[TEMPBUFFSIZE] = {}; int POWERSTATUS = 2; char mimeType[] = "text/html",*p,power_onoff[STRBUFFSIZE] = {},submit[STRBUFFSIZE] = {},*tmp; char *content = ""; content = getenv("QUERY_STRING"); fprintf(stdout,"Content-type: %s%c%c",mimeType,10,10); fprintf(stdout,"<HTML><HEAD>\n"); fprintf(stdout,"<TITLE>Welcome~~!</title></head>\n"); p = content; if((tmp = strchr(content,'&')) != NULL) { p = ++tmp; for(i = 0;(i < STRBUFFSIZE)&&(p != NULL);i++) { power_onoff[i] = *p++; } POWERSTATUS =GetPowerStatus(power_onoff); if((fd = open_port(fd,2)) < 0) { perror("open port error"); return; } if((i = set_opt(fd,9600,8,'N',1)) < 0) { perror("set opt error"); return; } if(POWERSTATUS == TRUE) { printf("<p>Your application is power on!\n"); for(i = 0;i < 15; i++) { if(write(fd,&cbyte[0],1) != 1) { printf("write '0x01 error.\n"); } for(j = 0;j < 1000;j++) { for(k = 0;k < 1000;k++); } } close(fd); } else { printf("<p>Your application has been shut down\n"); for(i = 0;i < 15;i++) { if(write(fd,&cbyte[1],1) != 1) { printf("write '0x01 error.\n"); } for(j = 0;j < 1000;j++) { for(k = 0;k < 1000;k++); } } close(fd); } } if((file_fd = open(SaveTempFile,O_RDONLY)) < 0) perror("open"); if(lseek(file_fd,-TEMPBUFFSIZE,SEEK_END) == -1) //here the length is undecided; printf("can't seek\n"); if((num = read(file_fd,Temp_Buf,TEMPBUFFSIZE)) > 0) fprintf(stdout,"<p>Now the temprature is %s",Temp_Buf); else printf("read error"); fprintf(stdout,"</body></html>\n"); return 0;}int GetPowerStatus(char *power_onoff){ char *tmp; if((tmp = strchr(power_onoff,'=')) != NULL) { ++tmp; } if(tmp == NULL) return FALSE; if(strcmp(tmp,"on_button") == 0) return TRUE; else return FALSE; } ⌨️ 快捷键说明
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