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Only define variable "a" if we HAVE_LINUX_NETWORK

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Variable unsigned char a is defined unconditionally,
but it is only used if HAVE_LINUX_NETWORK is defined.
This triggers compiler warnings on, say, FreeBSD.

Fix by wrapping the definition in proper #ifdef.
This commit is contained in:
Matthias Andree
2025-05-21 20:41:33 +02:00
committed by Simon Kelley
parent 96bdb42d40
commit 1861a881eb
1 changed files with 5 additions and 2 deletions
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7
src/dnsmasq.c
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@@ -1939,11 +1939,14 @@ static void do_tcp_connection(struct listener *listener, time_t now, int slot)
pid_t p; pid_t p;
union mysockaddr tcp_addr; union mysockaddr tcp_addr;
socklen_t tcp_len = sizeof(union mysockaddr); socklen_t tcp_len = sizeof(union mysockaddr);
unsigned char a = 0, *buff; unsigned char *buff;
struct server *s; struct server *s;
int flags, auth_dns; int flags, auth_dns;
struct in_addr netmask; struct in_addr netmask;
int pipefd[2]; int pipefd[2];
#ifdef HAVE_LINUX_NETWORK
unsigned char a = 0;
#endif
while ((confd = accept(listener->tcpfd, NULL, NULL)) == -1 && errno == EINTR); while ((confd = accept(listener->tcpfd, NULL, NULL)) == -1 && errno == EINTR);
@@ -2052,7 +2055,7 @@ static void do_tcp_connection(struct listener *listener, time_t now, int slot)
single byte comes back up the pipe, which single byte comes back up the pipe, which
is sent by the child after it has closed the is sent by the child after it has closed the
netlink socket. */ netlink socket. */
read_write(pipefd[0], &a, 1, RW_READ); read_write(pipefd[0], &a, 1, RW_READ);
#endif #endif