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/* sockd_rdroute */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <syslog.h>
#include "socks.h"
int sockd_rdroute(filename, rtAddrPtr, NrtPtr, useSyslog)
char *filename;
struct config **rtAddrPtr;
int *NrtPtr;
int useSyslog;
{
FILE *fd;
static char buf[1024];
char *bp;
int linenum = 0, permit;
char *argv[10];
int argc;
int next_arg;
long p;
int Nrt = 0, maxrt = 0;
struct config *rtAddr, *cp;
int has_error = 0;
int i;
if ((fd = fopen(filename, "r")) == NULL) {
if (useSyslog)
syslog(LOG_HIGH, "Cannot open route file %s: %m\n", filename);
else
fprintf(stderr, "Cannot open route file %s: %m\n", filename);
exit(1);
}
for (i = 0, cp = *rtAddrPtr; i++ < *NrtPtr; cp++) {
if (cp->ddomain != NULL)
free(cp->ddomain);
}
if (*rtAddrPtr)
free(*rtAddrPtr);
maxrt = CONF_INCR;
rtAddr = (struct config *) malloc( maxrt * sizeof(struct config));
if (rtAddr == NULL) {
goto out_of_memory;
}
Nrt = 0;
cp = rtAddr;
while (fgets(buf, sizeof(buf) - 1, fd) != NULL) {
linenum++;
bzero(cp, sizeof(struct config));
/*
** Comments start with a '#' anywhere on the line
*/
if ((bp = index(buf, '\n')) != NULL)
*bp = '\0';
for (bp = buf; *bp != '\0'; bp++) {
if (*bp == ':') {
*bp++ = '\0';
cp->cmdp = strdup(bp);
if (cp->cmdp == NULL)
goto out_of_memory;
break;
} else if (*bp == '#') {
*bp = '\0';
break;
} else if (*bp == '\t')
*bp = ' ';
}
if (strlen(buf) == 0) continue;
socks_mkargs(buf, &argc, argv, 10);
if (argc == 0) {
continue;
}
if (argc != 3) {
if (useSyslog)
syslog(LOG_HIGH, "Invalid entry at line %d in file %s", linenum, filename);
else
fprintf(stderr, "Invalid entry at line %d in file %s\n", linenum, filename);
exit(1);
}
if (socks_GetQuad(argv[0], &cp->saddr) == -1) {
if (useSyslog)
syslog(LOG_HIGH, "illegal interface address at line %d in file %s", linenum, filename);
else
fprintf(stderr, "illegal interface address at line %d in file %s\n", linenum, filename);
has_error = 1;
continue;
}
if (socks_GetAddr(argv[1], &cp->daddr, &cp->ddomain) == -1){
goto out_of_memory;
}
if (socks_GetQuad(argv[2], &cp->dmask) == -1) {
if (useSyslog)
syslog(LOG_HIGH, "illegal destination mask at line %d in file %s", linenum, filename);
else
fprintf(stderr, "illegal destination mask at line %d in file %s\n", linenum, filename);
has_error = 1;
continue;
}
update_count:
if (++Nrt >= maxrt) {
maxrt += CONF_INCR;
rtAddr = (struct config *) realloc(rtAddr, maxrt * sizeof(struct config));
}
if (rtAddr == NULL) {
goto out_of_memory;
}
cp = rtAddr + Nrt;
}
fclose(fd);
if (Nrt == 0) {
if (useSyslog)
syslog(LOG_HIGH, "No valid entires in file %s", filename);
else
fprintf(stderr, "No valid entires in file %s\n", filename);
exit(1);
}
if (has_error)
exit(1);
if (Nrt < maxrt)
rtAddr = (struct config *) realloc(rtAddr, Nrt * sizeof(struct config));
*NrtPtr = Nrt;
*rtAddrPtr = rtAddr;
return 0;
out_of_memory:
if (useSyslog)
syslog(LOG_HIGH, "Out of memory\n");
else
fprintf(stderr, "Out of memory\n");
exit(1);
}
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