diff options
Diffstat (limited to 'usr.bin/wall/wall.c')
-rw-r--r-- | usr.bin/wall/wall.c | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/usr.bin/wall/wall.c b/usr.bin/wall/wall.c index be5329a..b92edd4 100644 --- a/usr.bin/wall/wall.c +++ b/usr.bin/wall/wall.c @@ -65,7 +65,7 @@ static const char sccsid[] = "@(#)wall.c 8.2 (Berkeley) 11/16/93"; #include <string.h> #include <time.h> #include <unistd.h> -#include <utmp.h> +#include <utmpx.h> #include "ttymsg.h" @@ -82,12 +82,12 @@ int mbufsize; char *mbuf; static int -ttystat(char *line, int sz) +ttystat(char *line) { struct stat sb; char ttybuf[MAXPATHLEN]; - (void)snprintf(ttybuf, sizeof(ttybuf), "%s%.*s", _PATH_DEV, sz, line); + (void)snprintf(ttybuf, sizeof(ttybuf), "%s%s", _PATH_DEV, line); if (stat(ttybuf, &sb) == 0) { return (0); } else @@ -98,17 +98,14 @@ int main(int argc, char *argv[]) { struct iovec iov; - struct utmp utmp; + struct utmpx *utmp; int ch; int ingroup; - FILE *fp; struct wallgroup *g; struct group *grp; char **np; const char *p; struct passwd *pw; - char line[sizeof(utmp.ut_line) + 1]; - char username[sizeof(utmp.ut_name) + 1]; (void)setlocale(LC_CTYPE, ""); @@ -145,20 +142,17 @@ main(int argc, char *argv[]) makemsg(*argv); - if (!(fp = fopen(_PATH_UTMP, "r"))) - err(1, "cannot read %s", _PATH_UTMP); iov.iov_base = mbuf; iov.iov_len = mbufsize; /* NOSTRICT */ - while (fread((char *)&utmp, sizeof(utmp), 1, fp) == 1) { - if (!utmp.ut_name[0]) + while ((utmp = getutxent()) != NULL) { + if (utmp->ut_type != USER_PROCESS) continue; - if (ttystat(utmp.ut_line, UT_LINESIZE) != 0) + if (ttystat(utmp->ut_line) != 0) continue; if (grouplist) { ingroup = 0; - strlcpy(username, utmp.ut_name, sizeof(utmp.ut_name)); - pw = getpwnam(username); + pw = getpwnam(utmp->ut_user); if (!pw) continue; for (g = grouplist; g && ingroup == 0; g = g->next) { @@ -168,7 +162,7 @@ main(int argc, char *argv[]) ingroup = 1; else if ((grp = getgrgid(g->gid)) != NULL) { for (np = grp->gr_mem; *np; np++) { - if (strcmp(*np, username) == 0) { + if (strcmp(*np, utmp->ut_user) == 0) { ingroup = 1; break; } @@ -178,16 +172,14 @@ main(int argc, char *argv[]) if (ingroup == 0) continue; } - strncpy(line, utmp.ut_line, sizeof(utmp.ut_line)); - line[sizeof(utmp.ut_line)] = '\0'; - if ((p = ttymsg(&iov, 1, line, 60*5)) != NULL) + if ((p = ttymsg(&iov, 1, utmp->ut_line, 60*5)) != NULL) warnx("%s", p); } exit(0); } static void -usage() +usage(void) { (void)fprintf(stderr, "usage: wall [-g group] [file]\n"); exit(1); |