share/examples/isdn/contrib/answer.c

   1 // $FreeBSD: src/share/examples/isdn/contrib/answer.c,v 1.1.2.1 2001/08/10 14:59:47 obrien Exp $
   2 // changed ".g711a" to ".al" (-hm)
   3 // Tue Mar  3 02:42:14 MET 1998         dave@turbocat.de
   4 // started
   5
   6 #define BLK_SIZE        2048
   7 #define SOX             "/usr/local/bin/sox"
   8 #define ALAWULAW        "/usr/local/bin/alaw2ulaw"
   9
  10 #include <stdio.h>
  11 #include <time.h>
  12
  13         FILE    *device;
  14         FILE    *logfile;
  15         char    srcNum[30];
  16         char    destNum[30];
  17         char argbuf[255];
  18         char tmpBuf[1024] = "";
  19
  20
  21 void writeToPhone (char *path)
  22 {
  23         char    buf[BLK_SIZE];
  24         FILE    *srcfile;
  25         int             i = 0;
  26         int             readcount = 0;
  27
  28         srcfile = fopen(path,"r");
  29         if (srcfile) {
  30                 for (i=0;i<BLK_SIZE;i++) {
  31                         buf[i] = '\0';
  32                 }
  33                 readcount = BLK_SIZE;
  34                 i = 0;
  35                 do {
  36                 readcount = fread(buf,1, BLK_SIZE, srcfile);
  37                 fwrite(buf, 1, readcount, device);
  38                         i = readcount + i;
  39 //                      fprintf(logfile,"%d read (%d)\n",i,readcount);
  40                 } while (readcount == BLK_SIZE);
  41
  42                 fclose(srcfile);
  43         } else {
  44                 fprintf(logfile,"Can't open file '%s'\n",path);
  45         }
  46 }
  47
  48 void readFromPhone (char *path)
  49 {
  50         char    buf[BLK_SIZE];
  51         FILE    *destfile;
  52         int             i = 0;
  53         int             readcount = 0;
  54
  55         destfile = fopen(path,"a");
  56         if (destfile) {
  57                 for (i=0;i<BLK_SIZE;i++) {
  58                         buf[i] = '\0';
  59                 }
  60                 readcount = BLK_SIZE;
  61                 i = 0;
  62                 do {
  63                 readcount = fread(buf,1, BLK_SIZE, device);
  64                 fwrite(buf, 1, readcount, destfile);
  65                         i = readcount + i;
  66 //                      fprintf(logfile,"%d read (%d)\n",i,readcount);
  67                 } while (readcount == BLK_SIZE);
  68
  69                 fclose(destfile);
  70         } else {
  71                 fprintf(logfile,"Can't open file '%s'\n",path);
  72         }
  73 }
  74
  75 void usage (void)
  76 {
  77         fprintf(stderr,"Usage: answer -D device -d destination -s source\n");
  78         exit(1);
  79 }
  80
  81 const char * argWithName (const char* aName)
  82 {
  83         // '-D /dev/null -d 82834 -s 3305682834'
  84         int i = 0;
  85         int optionSeen = 0;
  86         int startpos = 0;
  87
  88         for (i = 0; i < sizeof(tmpBuf);i++) {
  89                 tmpBuf[i] = '\0';
  90         }
  91
  92         for (i = 0; i<strlen(argbuf);i++) {
  93                 if (optionSeen) {
  94                         for (;(i<strlen(argbuf) && (argbuf[i] != ' '));i++) {
  95                         }
  96                         i++;
  97                         startpos = i;
  98
  99                         for (;(i<strlen(argbuf) && (argbuf[i] != ' '));i++) {
 100                         }
 101                         strncpy(tmpBuf,&argbuf[startpos], i-startpos);
 102
 103                         return tmpBuf;
 104                 }
 105                 if (0 == strncmp(aName,&argbuf[i], strlen(aName))) {
 106                         optionSeen = 1;
 107                 }
 108         }
 109
 110         usage();
 111         return NULL;
 112 }
 113
 114 int main (int argc, const char *argv[]) {
 115
 116         int i,pos = 0;
 117         extern char *optarg;
 118         extern int optind;
 119         int bflag, ch;
 120         char timeStr[50];
 121         char outfileName[1024] = "";
 122         char cmdStr[2048] = "";
 123         time_t now;
 124
 125         now=time(NULL);
 126
 127         strftime(timeStr,40,I4B_TIME_FORMAT,localtime(&now));
 128
 129         logfile = fopen("/var/log/answer.log","a");
 130
 131         fprintf(logfile,"%s Started\n",timeStr);
 132
 133         pos=0;
 134         for (i=1;i<argc;i++) {
 135                 sprintf(&argbuf[strlen(argbuf)],"%s ",argv[i]);
 136         }
 137         if (strlen(argbuf) > 2) {
 138                 argbuf[strlen(argbuf)-1] = '\0';
 139         }
 140
 141
 142         device = fopen(argWithName("-D"),"r+");
 143         strcpy(destNum, argWithName("-d"));
 144         strcpy(srcNum, argWithName("-s"));
 145
 146                 fprintf(logfile,"device '%s'\n", argWithName("-D"));
 147                 fprintf(logfile,"srcNum '%s'\n", srcNum);
 148                 fprintf(logfile,"destNum '%s'\n", destNum);
 149
 150
 151         if (device) {
 152
 153                 strftime(timeStr,40,I4B_TIME_FORMAT,localtime(&now));
 154
 155                 sprintf(outfileName,"/var/isdn/%s_%s_%s", timeStr, srcNum, destNum);
 156
 157                 writeToPhone ("/usr/local/lib/isdn/msg.al");
 158                 readFromPhone (outfileName);
 159
 160                 sprintf(cmdStr,"/bin/cat %s | %s | %s -t raw -U -b -r 8000 - -t .au %s.snd", outfileName, ALAWULAW, SOX, outfileName);
 161                 fprintf(logfile,"%s\n",cmdStr);
 162                 system(cmdStr);
 163                 unlink(outfileName);
 164
 165                 fclose(device);
 166         } else {
 167                 fprintf(logfile,"Can't open file '%s'\n",argWithName("-D"));
 168         }
 169
 170         now=time(NULL);
 171
 172         strftime(timeStr,40,I4B_TIME_FORMAT,localtime(&now));
 173
 174         fprintf(logfile,"%s Done\n",timeStr);
 175         fclose(logfile);
 176     exit(0);       // insure the process exit status is 0
 177     return 0;      // ...and make main fit the ANSI spec.
 178 }