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/*
// AUTHOR
// N. Nielsen
//
// LICENSE
// This software is in the public domain.
//
// The software is provided "as is", without warranty of any kind,
// express or implied, including but not limited to the warranties
// of merchantability, fitness for a particular purpose, and
// noninfringement. In no event shall the author(s) be liable for any
// claim, damages, or other liability, whether in an action of
// contract, tort, or otherwise, arising from, out of, or in connection
// with the software or the use or other dealings in the software.
//
// SUPPORT
// Send bug reports to: <nielsen@memberwebs.com>
//
// CHANGES
// 1.1
// Initial implementation
*/
#define SYSLOG_NAMES
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <stdio.h>
#include <syslog.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <stdarg.h>
#define CONSOLE_DEV "/dev/console"
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
/* Error handlers */
static void doWarn(const char* msg, ...);
static void doQuit(const char* msg, ...);
static int fcopy(FILE* dest, FILE* src);
int main(int argc, char* argv[])
{
FILE* console;
struct stat sb;
/*
* Check to see if /dev/console is a real console
*/
if(stat(CONSOLE_DEV, &sb) == 0)
{
if(!(sb.st_mode & S_IFREG || sb.st_mode & S_IFLNK))
{
doWarn("%s is not a jail console.", CONSOLE_DEV);
return 1;
}
}
console = fopen(CONSOLE_DEV, "r");
if(!console)
{
doQuit("couldn't open jail console: %s", strerror(errno));
return 1;
}
fcopy(stdout, console);
return 0;
}
void doQuit(const char* msg, ...)
{
va_list ap;
va_start(ap, msg);
vwarnx(msg, ap);
exit(2);
va_end(ap);
}
void doWarn(const char* msg, ...)
{
va_list ap;
va_start(ap, msg);
/* Either to syslog or stderr */
vwarnx(msg, ap);
va_end(ap);
}
static int fcopy(FILE* dest, FILE* src)
{
char buff[32];
size_t bytes = 0;
while(!feof(src) && !ferror(src) && !ferror(dest))
{
bytes = fread(buff, 1, 32, src);
fwrite(buff, 1, bytes, dest);
}
if(ferror(src) || ferror(dest))
return -1;
return 0;
}
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