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build: fix compile error on gcc ~7.3.0

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It seems to be having a bit of trouble understanding the control flow to realize
it's not actually uninitialized.

Add an error handler after the switch in case we miss a real uninitialized error
in the future.

Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
William Casarin 2018-10-08 16:02:02 -07:00 • committed by Rusty Russell
parent 45b07e7e89
commit 7c4b9c8a0d
1 changed files with 6 additions and 2 deletions
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8
devtools/gossipwith.c
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@ -150,11 +150,11 @@ int main(int argc, char *argv[])
{ {
struct io_conn *conn = tal(NULL, struct io_conn); struct io_conn *conn = tal(NULL, struct io_conn);
struct wireaddr_internal addr; struct wireaddr_internal addr;
int af; int af = -1;
struct pubkey us, them; struct pubkey us, them;
const char *err_msg; const char *err_msg;
const char *at; const char *at;
struct addrinfo *ai; struct addrinfo *ai = NULL;
setup_locale(); setup_locale();
secp256k1_ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY | secp256k1_ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY |
@ -212,6 +212,10 @@ int main(int argc, char *argv[])
} }
ai = wireaddr_to_addrinfo(tmpctx, &addr.u.wireaddr); ai = wireaddr_to_addrinfo(tmpctx, &addr.u.wireaddr);
} }
if (af == -1 || ai == NULL)
err(1, "Initializing socket");
conn->fd = socket(af, SOCK_STREAM, 0); conn->fd = socket(af, SOCK_STREAM, 0);
if (conn->fd < 0) if (conn->fd < 0)
err(1, "Creating socket"); err(1, "Creating socket");