Mon May 14 04:48:30 2007

Asterisk developer's documentation


eagi-sphinx-test.c File Reference

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/select.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include "asterisk.h"
#include "asterisk/compat.h"

Include dependency graph for eagi-sphinx-test.c:

Go to the source code of this file.

Defines

#define AUDIO_FILENO   (STDERR_FILENO + 1)
#define SPHINX_HOST   "192.168.1.108"
#define SPHINX_PORT   3460

Functions

static int connect_sphinx (void)
int main (int argc, char *argv[])
static int read_environment (void)
static char * run_command (char *command)
static int run_script (void)
static char * wait_result (void)

Variables

static int sphinx_sock = -1


Detailed Description

Extended AGI test application

This code is released into public domain without any warranty of any kind.

Definition in file eagi-sphinx-test.c.


Define Documentation

#define AUDIO_FILENO   (STDERR_FILENO + 1)

Definition at line 34 of file eagi-sphinx-test.c.

Referenced by wait_result().

#define SPHINX_HOST   "192.168.1.108"

Definition at line 36 of file eagi-sphinx-test.c.

Referenced by connect_sphinx().

#define SPHINX_PORT   3460

Definition at line 37 of file eagi-sphinx-test.c.

Referenced by connect_sphinx().


Function Documentation

static int connect_sphinx ( void   )  [static]

Definition at line 41 of file eagi-sphinx-test.c.

References gethostbyname, hp, SPHINX_HOST, SPHINX_PORT, and sphinx_sock.

Referenced by main().

00042 {
00043    struct hostent *hp;
00044    struct sockaddr_in sin;
00045    int res;
00046    hp = gethostbyname(SPHINX_HOST);
00047    if (!hp) {
00048       fprintf(stderr, "Unable to resolve '%s'\n", SPHINX_HOST);
00049       return -1;
00050    }
00051    sphinx_sock = socket(PF_INET, SOCK_STREAM, 0);
00052    if (sphinx_sock < 0) {
00053       fprintf(stderr, "Unable to allocate socket: %s\n", strerror(errno));
00054       return -1;
00055    }
00056    memset(&sin, 0, sizeof(sin));
00057    sin.sin_family = AF_INET;
00058    sin.sin_port = htons(SPHINX_PORT);
00059    memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
00060    if (connect(sphinx_sock, (struct sockaddr *)&sin, sizeof(sin))) {
00061       fprintf(stderr, "Unable to connect on socket: %s\n", strerror(errno));
00062       close(sphinx_sock);
00063       sphinx_sock = -1;
00064       return -1;
00065    }
00066    res = fcntl(sphinx_sock, F_GETFL);
00067    if ((res < 0) || (fcntl(sphinx_sock, F_SETFL, res | O_NONBLOCK) < 0)) {
00068       fprintf(stderr, "Unable to set flags on socket: %s\n", strerror(errno));
00069       close(sphinx_sock);
00070       sphinx_sock = -1;
00071       return -1;
00072    }
00073    return 0;
00074 }

int main ( int  argc,
char *  argv[] 
)

Definition at line 206 of file eagi-sphinx-test.c.

References connect_sphinx(), read_environment(), and run_script().

00207 {
00208    char *tmp;
00209    int ver = 0;
00210    int subver = 0;
00211    /* Setup stdin/stdout for line buffering */
00212    setlinebuf(stdin);
00213    setlinebuf(stdout);
00214    if (read_environment()) {
00215       fprintf(stderr, "Failed to read environment: %s\n", strerror(errno));
00216       exit(1);
00217    }
00218    connect_sphinx();
00219    tmp = getenv("agi_enhanced");
00220    if (tmp) {
00221       if (sscanf(tmp, "%d.%d", &ver, &subver) != 2)
00222          ver = 0;
00223    }
00224    if (ver < 1) {
00225       fprintf(stderr, "No enhanced AGI services available.  Use EAGI, not AGI\n");
00226       exit(1);
00227    }
00228    if (run_script())
00229       return -1;
00230    exit(0);
00231 }

static int read_environment ( void   )  [static]

Definition at line 76 of file eagi-sphinx-test.c.

References setenv().

Referenced by main().

00077 {
00078    char buf[256];
00079    char *val;
00080    /* Read environment */
00081    for(;;) {
00082       fgets(buf, sizeof(buf), stdin);
00083       if (feof(stdin))
00084          return -1;
00085       buf[strlen(buf) - 1] = '\0';
00086       /* Check for end of environment */
00087       if (!strlen(buf))
00088          return 0;
00089       val = strchr(buf, ':');
00090       if (!val) {
00091          fprintf(stderr, "Invalid environment: '%s'\n", buf);
00092          return -1;
00093       }
00094       *val = '\0';
00095       val++;
00096       val++;
00097       /* Skip space */
00098       fprintf(stderr, "Environment: '%s' is '%s'\n", buf, val);
00099 
00100       /* Load into normal environment */
00101       setenv(buf, val, 1);
00102       
00103    }
00104    /* Never reached */
00105    return 0;
00106 }

static char* run_command ( char *  command  )  [static]

Definition at line 164 of file eagi-sphinx-test.c.

References wait_result().

Referenced by run_script().

00165 {
00166    fprintf(stdout, "%s\n", command);
00167    return wait_result();
00168 }

static int run_script ( void   )  [static]

Definition at line 170 of file eagi-sphinx-test.c.

References run_command().

Referenced by main().

00171 {
00172    char *res;
00173    res = run_command("STREAM FILE demo-enterkeywords 0123456789*#");
00174    if (!res) {
00175       fprintf(stderr, "Failed to execute command\n");
00176       return -1;
00177    }
00178    fprintf(stderr, "1. Result is '%s'\n", res);
00179    res = run_command("STREAM FILE demo-nomatch 0123456789*#");
00180    if (!res) {
00181       fprintf(stderr, "Failed to execute command\n");
00182       return -1;
00183    }
00184    fprintf(stderr, "2. Result is '%s'\n", res);
00185    res = run_command("SAY NUMBER 23452345 0123456789*#");
00186    if (!res) {
00187       fprintf(stderr, "Failed to execute command\n");
00188       return -1;
00189    }
00190    fprintf(stderr, "3. Result is '%s'\n", res);
00191    res = run_command("GET DATA demo-enterkeywords");
00192    if (!res) {
00193       fprintf(stderr, "Failed to execute command\n");
00194       return -1;
00195    }
00196    fprintf(stderr, "4. Result is '%s'\n", res);
00197    res = run_command("STREAM FILE auth-thankyou \"\"");
00198    if (!res) {
00199       fprintf(stderr, "Failed to execute command\n");
00200       return -1;
00201    }
00202    fprintf(stderr, "5. Result is '%s'\n", res);
00203    return 0;
00204 }

static char* wait_result ( void   )  [static]

Definition at line 108 of file eagi-sphinx-test.c.

References AUDIO_FILENO, and sphinx_sock.

Referenced by run_command().

00109 {
00110    fd_set fds;
00111    int res;
00112    int max;
00113    static char astresp[256];
00114    static char sphinxresp[256];
00115    char audiobuf[4096];
00116    for (;;) {
00117       FD_ZERO(&fds);
00118       FD_SET(STDIN_FILENO, &fds);
00119       FD_SET(AUDIO_FILENO, &fds);
00120       max = AUDIO_FILENO;
00121       if (sphinx_sock > -1) {
00122          FD_SET(sphinx_sock, &fds);
00123          if (sphinx_sock > max)
00124             max = sphinx_sock;
00125       }
00126       /* Wait for *some* sort of I/O */
00127       res = select(max + 1, &fds, NULL, NULL, NULL);
00128       if (res < 0) {
00129          fprintf(stderr, "Error in select: %s\n", strerror(errno));
00130          return NULL;
00131       }
00132       if (FD_ISSET(STDIN_FILENO, &fds)) {
00133          fgets(astresp, sizeof(astresp), stdin);
00134          if (feof(stdin)) {
00135             fprintf(stderr, "Got hungup on apparently\n");
00136             return NULL;
00137          }
00138          astresp[strlen(astresp) - 1] = '\0';
00139          fprintf(stderr, "Ooh, got a response from Asterisk: '%s'\n", astresp);
00140          return astresp;
00141       }
00142       if (FD_ISSET(AUDIO_FILENO, &fds)) {
00143          res = read(AUDIO_FILENO, audiobuf, sizeof(audiobuf));
00144          if (res > 0) {
00145             if (sphinx_sock > -1) 
00146                write(sphinx_sock, audiobuf, res);
00147          }
00148       }
00149       if ((sphinx_sock > -1) && FD_ISSET(sphinx_sock, &fds)) {
00150          res = read(sphinx_sock, sphinxresp, sizeof(sphinxresp));
00151          if (res > 0) {
00152             fprintf(stderr, "Oooh, Sphinx found a token: '%s'\n", sphinxresp);
00153             return sphinxresp;
00154          } else if (res == 0) {
00155             fprintf(stderr, "Hrm, lost sphinx, guess we're on our own\n");
00156             close(sphinx_sock);
00157             sphinx_sock = -1;
00158          }
00159       }
00160    }
00161       
00162 }


Variable Documentation

int sphinx_sock = -1 [static]

Definition at line 39 of file eagi-sphinx-test.c.

Referenced by connect_sphinx(), and wait_result().


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