/* * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ /* wtmp support rubbish (i.e. complete crap) */ #include <string.h> #include <sys/time.h> #include <time.h> #include <unistd.h> #include <utmp.h> #include <fcntl.h> #include <sys/file.h> #if 0 libc_hidden_proto(memset) libc_hidden_proto(strncpy) libc_hidden_proto(updwtmp) #endif libc_hidden_proto(open) libc_hidden_proto(write) libc_hidden_proto(close) libc_hidden_proto(lockf) libc_hidden_proto(gettimeofday) #if 0 /* This is enabled in uClibc/libutil/logwtmp.c */ void logwtmp (const char *line, const char *name, const char *host) { struct utmp lutmp; memset (&(lutmp), 0, sizeof (struct utmp)); lutmp.ut_type = (name && *name)? USER_PROCESS : DEAD_PROCESS; lutmp.ut_pid = __getpid(); strncpy(lutmp.ut_line, line, sizeof(lutmp.ut_line)-1); strncpy(lutmp.ut_name, name, sizeof(lutmp.ut_name)-1); strncpy(lutmp.ut_host, host, sizeof(lutmp.ut_host)-1); gettimeofday(&(lutmp.ut_tv), NULL); updwtmp(_PATH_WTMP, &(lutmp)); } #endif void updwtmp(const char *wtmp_file, const struct utmp *lutmp) { int fd; fd = open(wtmp_file, O_APPEND | O_WRONLY, 0); if (fd >= 0) { if (lockf(fd, F_LOCK, 0)==0) { write(fd, (const char *) lutmp, sizeof(struct utmp)); lockf(fd, F_ULOCK, 0); close(fd); } } }