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/******************************************************************************
(c) 2000-2003 Christine Caulfield christine.caulfield@googlemail.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
******************************************************************************/
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/fcntl.h>
#include <sys/utsname.h>
#include <string.h>
#include <time.h>
#include <stdio.h>
#include <unistd.h>
#include "utils.h"
void add_string(unsigned char *packet, int *ptr,
const unsigned char *string)
{
int len = strlen((char *)string);
packet[(*ptr)++] = len;
strcpy((char *)packet + *ptr, (char *)string);
*ptr += len;
}
void get_string(unsigned char *packet, int *ptr,
unsigned char *string)
{
int len = packet[(*ptr)++];
strncpy((char*)string, (char*)packet + *ptr, len);
string[len] = '\0';
*ptr += len;
}
#ifdef VERBOSE_DEBUG
void chrissie_debuglog(char *fmt, ...)
{
static time_t starttime = time(NULL);
va_list ap;
fprintf(stderr, "%5ld: ", time(NULL)-starttime);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
}
#endif
#ifndef HAVE_OPENPTY
int chrissie_openpty(int *master, int *slave, char *a, char *b, char *d)
{
char ptyname[] = "/dev/ptyCP";
char c;
char *line=NULL;
int i;
int pty=-1, t;
int gotpty=0;
struct stat stb;
for (c='p'; c <= 'z'; c++)
{
line = ptyname;
line[strlen("/dev/pty")] = c;
line[strlen("/dev/ptyC")] = '0';
if (stat(line,&stb) < 0)
break;
for (i=0; i < 16; i++)
{
line[strlen("/dev/ptyC")]= "0123456789abcdef"[i];
if ( (pty=open(line,O_RDWR)) > 0)
{
gotpty = 1;
break;
}
}
if (gotpty) break;
}
if (!gotpty)
{
debuglog(("No ptys available for connection"));
return -1;
}
line[strlen("/dev/")] = 't';
if ( (t=open(line,O_RDWR)) < 0)
{
debuglog(("Error connecting to physical terminal: %m"));
return -1;
}
*master = pty;
*slave = t;
return 0;
}
#endif
/* Expand \ sequences in /etc/issue.net file and add CRs to
LFs */
int expand_issue(const char *original, int len, char *newstring, int maxlen,
const char *servicename)
{
int i,j;
char scratch[132];
time_t t;
struct tm *tm;
struct utsname un;
uname(&un);
j=0;
for (i=0; i<len; i++)
{
if (j >= maxlen) break;
if (original[i] == '\n')
newstring[j++] = '\r';;
if (original[i] == '\\' || original[i] == '%')
{
i++;
switch (original[i])
{
case '\\':
case '%':
newstring[j++] = original[i];
break;
case 'b':
strcpy(newstring+j, "9600");
j+=4;
break;
case 'd':
t = time(NULL);
tm = localtime(&t);
strftime(scratch, sizeof(scratch), "%a %b %d %Y", tm);
strcpy(newstring+j, scratch);
j+=strlen(scratch);
break;
case 's':
strcpy(newstring+j, un.sysname);
j+=strlen(un.sysname);
break;
case 'l':
strcpy(newstring+j, servicename);
j+=strlen(servicename);
break;
case 'm':
strcpy(newstring+j, un.machine);
j+=strlen(un.machine);
break;
case 'n':
strcpy(newstring+j, un.nodename);
j+=strlen(un.nodename);
break;
#ifdef __GNU_SOURCE
case 'o':
strcpy(newstring+j, un.domainname);
j+=strlen(un.domainname);
break;
#endif
case 'r':
strcpy(newstring+j, un.release);
j+=strlen(un.release);
break;
case 't':
t = time(NULL);
tm = localtime(&t);
strftime(scratch, sizeof(scratch), "%H:%M:%S", tm);
strcpy(newstring+j, scratch);
j+=strlen(scratch);
break;
/* No, I am not doing number of users logged in... */
case 'v':
strcpy(newstring+j, un.version);
j+=strlen(un.version);
break;
}
}
else
{
newstring[j++] = original[i];
}
}
return j;
}
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