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realloc mistake. from openbsd

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This commit is contained in:
itojun 2003-09-19 05:33:15 +00:00
parent c747caaab9
commit 6e4e427990
1 changed files with 7 additions and 4 deletions
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11
libexec/comsat/comsat.c
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@ -1,4 +1,4 @@
/* $NetBSD: comsat.c,v 1.25 2003/08/07 09:46:37 agc Exp $ */
/* $NetBSD: comsat.c,v 1.26 2003/09/19 05:33:15 itojun Exp $ */
/*
* Copyright (c) 1980, 1993
@ -36,7 +36,7 @@ __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
#if 0
static char sccsid[] = "from: @(#)comsat.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: comsat.c,v 1.25 2003/08/07 09:46:37 agc Exp $");
__RCSID("$NetBSD: comsat.c,v 1.26 2003/09/19 05:33:15 itojun Exp $");
#endif
#endif /* not lint */
@ -159,6 +159,7 @@ onalrm(int signo)
static u_int utmpsize; /* last malloced size for utmp */
static u_int utmpmtime; /* last modification time for utmp */
struct stat statbf;
struct utmp *u;
if (time(NULL) - lastmsgtime >= MAXIDLE)
exit(0);
@ -167,11 +168,13 @@ onalrm(int signo)
if (statbf.st_mtime > utmpmtime) {
utmpmtime = statbf.st_mtime;
if (statbf.st_size > utmpsize) {
utmpsize = statbf.st_size + 10 * sizeof(struct utmp);
if ((utmp = realloc(utmp, utmpsize)) == NULL) {
if ((u = realloc(utmp,
statbf.st_size + 10 * sizeof(struct utmp))) == NULL) {
syslog(LOG_ERR, "%s", strerror(errno));
exit(1);
}
utmp = u;
utmpsize = statbf.st_size + 10 * sizeof(struct utmp);
}
(void)lseek(uf, (off_t)0, SEEK_SET);
nutmp = read(uf, utmp, (int)statbf.st_size)/sizeof(struct utmp);