From 0849c9af2a5637da5ce24118e2f4b9ab9da9c6d9 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Thu, 9 Jun 2011 15:04:30 +0200 Subject: socket: add OSMO_SOCK_F_[CONNECT|BIND|NON_BLOCK] flags This extends the socket infrastructure in libosmocore to allow to create non-blocking sockets. Basically, it replaces the connect0_bind1 parameter by one flags parameter. --- src/socket.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-) (limited to 'src/socket.c') diff --git a/src/socket.c b/src/socket.c index 0be98b93..f1fcccd5 100644 --- a/src/socket.c +++ b/src/socket.c @@ -6,6 +6,7 @@ #include #include +#include #include #include @@ -18,12 +19,16 @@ #include int osmo_sock_init(uint16_t family, uint16_t type, uint8_t proto, - const char *host, uint16_t port, int connect0_bind1) + const char *host, uint16_t port, unsigned int flags) { struct addrinfo hints, *result, *rp; int sfd, rc, on = 1; char portbuf[16]; + if ((flags & (OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT)) == + (OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT)) + return -EINVAL; + sprintf(portbuf, "%u", port); memset(&hints, 0, sizeof(struct addrinfo)); hints.ai_family = family; @@ -31,7 +36,7 @@ int osmo_sock_init(uint16_t family, uint16_t type, uint8_t proto, hints.ai_flags = 0; hints.ai_protocol = proto; - if (connect0_bind1) + if (flags & OSMO_SOCK_F_BIND) hints.ai_flags |= AI_PASSIVE; rc = getaddrinfo(host, portbuf, &hints, &result); @@ -44,10 +49,24 @@ int osmo_sock_init(uint16_t family, uint16_t type, uint8_t proto, sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); if (sfd == -1) continue; - if (connect0_bind1 == 0) { - if (connect(sfd, rp->ai_addr, rp->ai_addrlen) != -1) + if (flags & OSMO_SOCK_F_NONBLOCK) { + if (ioctl(sfd, FIONBIO, (unsigned char *)&on) < 0) { + perror("cannot set this socket unblocking"); + close(sfd); + return -EINVAL; + } + } + if (flags & OSMO_SOCK_F_CONNECT) { + rc = connect(sfd, rp->ai_addr, rp->ai_addrlen); + if (rc != -1 || (rc == -1 && errno == EINPROGRESS)) break; } else { + rc = setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, + &on, sizeof(on)); + if (rc < 0) { + perror("cannot setsockopt socket"); + break; + } if (bind(sfd, rp->ai_addr, rp->ai_addrlen) != -1) break; } @@ -63,7 +82,7 @@ int osmo_sock_init(uint16_t family, uint16_t type, uint8_t proto, setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); /* Make sure to call 'listen' on a bound, connection-oriented sock */ - if (connect0_bind1 == 1) { + if (flags & OSMO_SOCK_F_BIND) { switch (type) { case SOCK_STREAM: case SOCK_SEQPACKET: @@ -75,11 +94,11 @@ int osmo_sock_init(uint16_t family, uint16_t type, uint8_t proto, } int osmo_sock_init_ofd(struct osmo_fd *ofd, int family, int type, int proto, - const char *host, uint16_t port, int connect0_bind1) + const char *host, uint16_t port, unsigned int flags) { int sfd, rc; - sfd = osmo_sock_init(family, type, proto, host, port, connect0_bind1); + sfd = osmo_sock_init(family, type, proto, host, port, flags); if (sfd < 0) return sfd; @@ -96,7 +115,7 @@ int osmo_sock_init_ofd(struct osmo_fd *ofd, int family, int type, int proto, } int osmo_sock_init_sa(struct sockaddr *ss, uint16_t type, - uint8_t proto, int connect0_bind1) + uint8_t proto, unsigned int flags) { char host[NI_MAXHOST]; uint16_t port; @@ -127,8 +146,7 @@ int osmo_sock_init_sa(struct sockaddr *ss, uint16_t type, return s; } - return osmo_sock_init(ss->sa_family, type, proto, host, - port, connect0_bind1); + return osmo_sock_init(ss->sa_family, type, proto, host, port, flags); } static int sockaddr_equal(const struct sockaddr *a, -- cgit v1.2.3