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Complain if $HOME is not set instead of using a null pointer.

This commit is contained in:
mjl 2001-07-01 00:20:47 +00:00
parent 5f98a040cc
commit a98a0c3daf
1 changed files with 9 additions and 4 deletions
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13
usr.bin/msgs/msgs.c
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@ -1,4 +1,4 @@
/* $NetBSD: msgs.c,v 1.16 2000/07/06 14:21:47 ad Exp $ */
/* $NetBSD: msgs.c,v 1.17 2001/07/01 00:20:47 mjl Exp $ */
/*-
* Copyright (c) 1980, 1993
@ -43,7 +43,7 @@ __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
#if 0
static char sccsid[] = "@(#)msgs.c 8.2 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: msgs.c,v 1.16 2000/07/06 14:21:47 ad Exp $");
__RCSID("$NetBSD: msgs.c,v 1.17 2001/07/01 00:20:47 mjl Exp $");
#endif
#endif /* not lint */
@ -244,7 +244,7 @@ main(argc, argv)
default:
fprintf(stderr,
"usage: msgs [fhlopqr] [[-]number]\n");
"usage: msgs [cfhlopqrs] [[-]number]\n");
exit(1);
}
}
@ -413,7 +413,12 @@ main(argc, argv)
totty = (isatty(fileno(stdout)) != 0);
use_pager = use_pager && totty;
snprintf(fname, sizeof (fname), "%s/%s", getenv("HOME"), MSGSRC);
{
char *home = getenv("HOME");
if(home == NULL || *home == '\0')
errx(1, "$HOME not set");
snprintf(fname, sizeof (fname), "%s/%s", home, MSGSRC);
}
msgsrc = fopen(fname, "r");
if (msgsrc) {
newrc = NO;