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Don't core dump when tty has no associated process.

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This commit is contained in:
mycroft 1995-05-25 04:02:19 +00:00
parent 02513843ae
commit 753e31a4fe
1 changed files with 11 additions and 6 deletions
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17
usr.bin/w/w.c
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@ -317,15 +317,20 @@ pr_args(kp)
char **argv;
int left;
if (kp == 0)
goto nothing;
left = argwidth;
argv = kvm_getargv(kd, kp, argwidth);
if (argv) {
while (*argv) {
fmt_puts(*argv, &left);
argv++;
fmt_putc(' ', &left);
}
if (argv == 0)
goto nothing;
while (*argv) {
fmt_puts(*argv, &left);
argv++;
fmt_putc(' ', &left);
}
return;
nothing:
putchar('-');
}
static void