NAME
updwtmp, logwtmp - append an entry to the wtmp file
SYNOPSIS
#include <utmp.h>
void
updwtmp(const char *wtmp_file, const struct
utmp *ut);
void logwtmp(const char *line, const char
*name, const char
*host);
For logwtmp(), link with -lutil.
DESCRIPTION
updwtmp() appends the utmp structure ut to the wtmp file.
logwtmp() constructs a utmp structure using line, name, host, current time and current process ID. Then it calls updwtmp() to append the structure to the wtmp file.
FILES
/var/log/wtmp
database of past user logins
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
Image /var/www/mancx/application/src/../www/___/img/man3/man3/updwtmp1.png
CONFORMING TO
Not in POSIX.1. Present on Solaris, NetBSD, and perhaps other systems.
NOTES
For consistency with the other "utmpx" functions (see getutxent(3)), glibc provides (since version 2.1):
#include
<utmpx.h>
void updwtmpx (const char *wtmpx_file, const
struct utmpx *utx);
This function performs the same task as updwtmp(), but differs in that it takes a utmpx structure as its last argument.
SEE ALSO
COLOPHON
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