diff --git a/source3/smbd/utmp.c b/source3/smbd/utmp.c index 6837c07..028daf2 100644 --- a/source3/smbd/utmp.c +++ b/source3/smbd/utmp.c @@ -255,14 +255,58 @@ static char *uw_pathname(TALLOC_CTX *ctx, } #ifndef HAVE_PUTUTLINE +#include + /**************************************************************************** Update utmp file directly. No subroutine interface: probably a BSD system. ****************************************************************************/ static void pututline_my(const char *uname, struct utmp *u, bool claim) { - DEBUG(1,("pututline_my: not yet implemented\n")); - /* BSD implementor: may want to consider (or not) adjusting "lastlog" */ + int fd, topslot; + struct utmp ubuf; + + if ((fd = open(uname, O_RDWR, 0)) < 0) + return; + + if (!setttyent()) + return; + + for (topslot = 0; getttyent() != (struct ttyent *)NULL; ) + topslot++; + + if (!endttyent()) + return; + + (void) lseek(fd, (off_t)(topslot * sizeof(struct utmp)), SEEK_SET); + + DEBUG(1,("pututline(%s, %s, %d); topslot=%d\n", + u->ut_line, u->ut_name, claim, topslot)); + + while (1) { + if (read(fd, &ubuf, sizeof(ubuf)) == sizeof(ubuf)) { + if ((claim && !ubuf.ut_name[0]) || + (!claim && ubuf.ut_name[0] && + !strncmp(ubuf.ut_line, u->ut_line, UT_LINESIZE))) { + (void) lseek(fd, -(off_t)sizeof(struct utmp), + SEEK_CUR); + break; + } + topslot++; + } else { + (void) lseek(fd, (off_t)(topslot * + sizeof(struct utmp)), SEEK_SET); + break; + } + } + + if (!claim) { + memset((char *)&u->ut_name, '\0', sizeof(u->ut_name)); + memset((char *)&u->ut_host, '\0', sizeof(u->ut_host)); + } + (void) write(fd, u, sizeof(struct utmp)); + + (void) close(fd); } #endif /* HAVE_PUTUTLINE */