diff options
Diffstat (limited to 'usr.sbin/smtpd/util.c')
| -rw-r--r-- | usr.sbin/smtpd/util.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/usr.sbin/smtpd/util.c b/usr.sbin/smtpd/util.c index ed7462eba85..27e76c6f47d 100644 --- a/usr.sbin/smtpd/util.c +++ b/usr.sbin/smtpd/util.c @@ -1,4 +1,4 @@ -/* $OpenBSD: util.c,v 1.16 2009/03/01 21:58:53 jacekm Exp $ */ +/* $OpenBSD: util.c,v 1.17 2009/03/09 23:35:04 jacekm Exp $ */ /* * Copyright (c) 2008 Gilles Chehade <gilles@openbsd.org> @@ -311,3 +311,34 @@ secure_file(int fd, char *path, struct passwd *pw) return 1; } + +void +addargs(arglist *args, char *fmt, ...) +{ + va_list ap; + char *cp; + u_int nalloc; + int r; + + va_start(ap, fmt); + r = vasprintf(&cp, fmt, ap); + va_end(ap); + if (r == -1) + fatal("addargs: argument too long"); + + nalloc = args->nalloc; + if (args->list == NULL) { + nalloc = 32; + args->num = 0; + } else if (args->num+2 >= nalloc) + nalloc *= 2; + + if (SIZE_T_MAX / nalloc < sizeof(char *)) + fatalx("addargs: nalloc * size > SIZE_T_MAX"); + args->list = realloc(args->list, nalloc * sizeof(char *)); + if (args->list == NULL) + fatal("addargs: realloc"); + args->nalloc = nalloc; + args->list[args->num++] = cp; + args->list[args->num] = NULL; +} |