138 lines
2.9 KiB
C
138 lines
2.9 KiB
C
/*****************************************************************************\
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** **
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** PBX4Linux **
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** **
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**---------------------------------------------------------------------------**
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** Copyright: Andreas Eversberg **
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** **
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** parse h323 gateway config file **
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** **
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\*****************************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "main.h"
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/* parse h323_gateway.conf
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*
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* searches for the given ip and returns the extension or NULL if not found
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*/
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char *parse_h323gateway(char *ip, char *opt, int opt_size)
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{
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FILE *fp=NULL;
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char filename[256];
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char *p;
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unsigned int line,i;
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char buffer[256];
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static char host_ip[32], extension[32], option[64];
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int found = 0;
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SPRINT(filename, "%s/h323_gateway.conf", INSTALL_DATA);
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if (!(fp = fopen(filename, "r")))
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{
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PERROR("Cannot open h323 gateway map: \"%s\"\n", filename);
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return(0);
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}
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line=0;
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while((fgets(buffer, sizeof(buffer), fp)))
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{
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line++;
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buffer[sizeof(buffer)-1] = '\0';
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if (buffer[0]) buffer[strlen(buffer)-1] = '\0';
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p = buffer;
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while(*p <= 32) /* skip spaces */
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{
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if (*p == 0)
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break;
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p++;
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}
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if (*p==0 || *p=='#') /* ignore comments and empty line */
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continue;
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host_ip[0]=0;
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extension[0]=0;
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option[0]=0;
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i=0; /* read host ip */
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while(*p > 32)
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{
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if (i+1 >= sizeof(host_ip))
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{
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PERROR_RUNTIME("Error in %s (line %d): ip too long.\n",filename,line);
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break;
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}
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host_ip[i+1] = '\0';
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host_ip[i++] = *p++;
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}
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while(*p <= 32) /* skip spaces */
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{
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if (*p == 0)
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break;
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p++;
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}
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if (*p!=0 && *p!='#') /* extension */
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{
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i=0; /* read extension */
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while(*p > 32)
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{
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if (i+1 >= sizeof(extension))
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{
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PERROR_RUNTIME("Error in %s (line %d): extension too long.\n",filename,line);
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break;
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}
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extension[i+1] = '\0';
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extension[i++] = *p++;
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}
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while(*p <= 32) /* skip spaces */
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{
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if (*p == 0)
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break;
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p++;
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}
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}
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if (*p!=0 && *p!='#') /* option */
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{
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i=0; /* read option */
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while(*p > 32)
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{
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if (i+1 >= sizeof(option))
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{
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PERROR_RUNTIME("Error in %s (line %d): option too long.\n",filename,line);
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break;
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}
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option[i+1] = '\0';
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option[i++] = *p++;
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}
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// ignoring more
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}
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if (!!strcasecmp(ip, host_ip))
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continue;
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if (extension[0] == '\0')
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continue;
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found = 1;
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break; /* found entry */
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}
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if (fp) fclose(fp);
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if (found)
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{
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UNCPY(opt, option, opt_size-1);
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opt[opt_size-1] = '\0';
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return(extension);
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}
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return(0);
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}
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