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/* Written By Mike Crider on September 18, 1994
* Prints out the number of lines in the utmp file.
* Use a number greater than the output number for the
* MAXUSERS definition in idled.h.
*
* Cleaned for distribution on October 3, 1995
*/
/* Choose a system type */
/* #define SYSV */
/* #define BSD */
#include <sys/types.h>
#include <fcntl.h>
#include <stdio.h>
#include "idled.h"
#if !defined(SYSV) && !defined(BSD)
# define SYSV
#endif
/* Maybe this should always be included? */
#ifdef SYSV
# include <fcntl.h>
#endif SYSV
int main()
{
#ifdef HAVE_UTMPX
int fd, numlines;
struct utmpx uent;
fd = open(UTMP_FILE,O_RDONLY,0);
numlines = 0;
while (read(fd,&uent,sizeof(struct utmpx)) > 0)
numlines++;
#else
int fd, numlines;
struct utmp uent;
fd = open(UTMP_FILE,O_RDONLY,0);
numlines = 0;
while (read(fd,&uent,sizeof(struct utmp)) > 0)
numlines++;
#endif
close(fd);
printf("Number of lines in utmp file: %d\n",numlines);
return 0;
}
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