net-ftp/vsftpd: fix build with gcc15

Closes: https://bugs.gentoo.org/880399
Signed-off-by: Alexey Sokolov <alexey+gentoo@asokolov.org>
Part-of: https://github.com/gentoo/gentoo/pull/42022
Closes: https://github.com/gentoo/gentoo/pull/42022
Signed-off-by: Sam James <sam@gentoo.org>

net-ftp/vsftpd/files/vsftpd-3.0.5-gcc15.patch

@@ -0,0 +1,13 @@
+https://bugs.gentoo.org/880399
+
+--- a/ssl.c
++++ b/ssl.c
+@@ -34,7 +34,7 @@
+ static char* get_ssl_error();
+ static SSL* get_ssl(struct vsf_session* p_sess, int fd);
+ static int ssl_session_init(struct vsf_session* p_sess);
+-static void setup_bio_callbacks();
++static void setup_bio_callbacks(SSL* p_ssl);
+ static long bio_callback(
+   BIO* p_bio, int oper, const char* p_arg, int argi, long argl, long retval);
+ static int ssl_verify_callback(int verify_ok, X509_STORE_CTX* p_ctx);

net-ftp/vsftpd/vsftpd-3.0.5-r2.ebuild

@@ -0,0 +1,117 @@
+# Copyright 2022-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit systemd toolchain-funcs
+
+DESCRIPTION="Very Secure FTP Daemon"
+HOMEPAGE="https://security.appspot.com/vsftpd.html"
+SRC_URI="https://security.appspot.com/downloads/${P}.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+IUSE="pam ssl tcpd"
+
+DEPEND="
+	>=sys-libs/libcap-2
+	pam? ( sys-libs/pam )
+	!pam? ( virtual/libcrypt:= )
+	ssl? ( dev-libs/openssl:0= )
+	tcpd? ( >=sys-apps/tcp-wrappers-7.6 )
+"
+
+RDEPEND="${DEPEND}
+	net-ftp/ftpbase
+"
+
+src_prepare() {
+	local PATCHES=(
+		"${FILESDIR}"/vsftpd-2.3.2-kerberos.patch
+		"${FILESDIR}"/vsftpd-3.0.2-alpha.patch
+		"${FILESDIR}"/vsftpd-3.0.3-sparc.patch
+		"${FILESDIR}"/vsftpd-3.0.5-seccomp.patch
+		"${FILESDIR}"/vsftpd-3.0.5-gcc15.patch
+	)
+	default
+}
+
+define() {
+	sed -i -e "/#undef $2/c#define $2${3:+ }$3" "$1" || die
+}
+
+undef() {
+	sed -i -e "/#define $2/c#undef $2" "$1" || die
+}
+
+src_configure() {
+	libs=( -lcap )
+
+	if use pam; then
+		libs+=( -lpam )
+	else
+		undef builddefs.h VSF_BUILD_PAM
+		libs+=( -lcrypt )
+	fi
+
+	if use ssl; then
+		define builddefs.h VSF_BUILD_SSL
+		libs+=( -lcrypto -lssl )
+	fi
+
+	if use tcpd; then
+		define builddefs.h VSF_BUILD_TCPWRAPPERS
+		libs+=( -lwrap )
+	fi
+
+	if use elibc_musl; then
+		# musl does not support utmp/wtmp
+		# https://bugs.gentoo.org/713952
+		undef sysdeputil.c VSF_SYSDEP_HAVE_UTMPX
+	fi
+}
+
+src_compile() {
+	local args=(
+		CC="$(tc-getCC)"
+		CFLAGS="${CFLAGS}"
+		LDFLAGS="${LDFLAGS}"
+		LIBS="${libs[*]}"
+		LINK=
+	)
+	emake "${args[@]}"
+}
+
+src_install() {
+	into /usr
+	dosbin vsftpd
+
+	doman vsftpd.conf.5 vsftpd.8
+
+	insinto /etc/logrotate.d
+	newins "${FILESDIR}"/vsftpd.logrotate vsftpd
+
+	insinto /etc/xinetd.d
+	newins "${FILESDIR}"/vsftpd.xinetd vsftpd
+
+	newinitd "${FILESDIR}"/vsftpd.init-3.0.5 vsftpd
+
+	systemd_newunit "${FILESDIR}"/vsftpd.service-3.0.5 vsftpd.service
+	systemd_newunit "${FILESDIR}"/vsftpd_at.service-3.0.5 vsftpd@.service
+	systemd_dounit "${FILESDIR}"/vsftpd.socket
+
+	keepdir /usr/share/empty
+
+	dodoc vsftpd.conf
+	dodoc -r EXAMPLE SECURITY
+
+	einstalldocs
+}
+
+pkg_preinst() {
+	if [[ ! -e ${EROOT}/etc/vsftpd.conf && -e ${EROOT}/etc/vsftpd/vsftpd.conf ]]; then
+		elog "Moving ${EROOT}/etc/vsftpd/vsftpd.conf to ${EROOT}/etc/vsftpd.conf"
+		mv "${EROOT}"/etc/{vsftpd/,}vsftpd.conf || die
+	fi
+}