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make signal handlers errno safe

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Obtained from:	OpenBSD (file rev 1.11) - Theo de Raadt <deraadt@openbsd.org>
This commit is contained in:
Eivind Eklund 1997-10-08 14:47:56 +00:00
parent af6ab81d43
commit ad0b1f1ac3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=30233
1 changed files with 8 additions and 3 deletions
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11
bin/ed/main.c
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@ -37,7 +37,7 @@ static char * const copyright =
static char * const rcsid = "@(#)main.c,v 1.1 1994/02/01 00:34:42 alm Exp";
#else
static char * const rcsid =
"$Id: main.c,v 1.10 1997/03/28 15:24:19 imp Exp $";
"$Id: main.c,v 1.11 1997/08/07 21:33:43 steve Exp $";
#endif
#endif /* not lint */
@ -1358,7 +1358,8 @@ signal_hup(signo)
{
if (mutex)
sigflags |= (1 << (signo - 1));
else handle_hup(signo);
else
handle_hup(signo);
}
@ -1368,7 +1369,8 @@ signal_int(signo)
{
if (mutex)
sigflags |= (1 << (signo - 1));
else handle_int(signo);
else
handle_int(signo);
}
@ -1418,6 +1420,8 @@ void
handle_winch(signo)
int signo;
{
int save_errno = errno;
struct winsize ws; /* window size structure */
sigflags &= ~(1 << (signo - 1));
@ -1425,6 +1429,7 @@ handle_winch(signo)
if (ws.ws_row > 2) rows = ws.ws_row - 2;
if (ws.ws_col > 8) cols = ws.ws_col - 8;
}
errno = save_errno;
}