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author | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
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committer | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
commit | 008d0be72b2f160382c6e880765e96b64a050c65 (patch) | |
tree | 36f48a98a3815a408e2ce1693dd182af90f80305 /release/src/router/busybox/libbb/xconnect.c | |
parent | 611becfb8726c60cb060368541ad98191d4532f5 (diff) | |
download | tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.gz tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.bz2 |
imported original firmware WRT54GL_v4.30.11_11_US
Diffstat (limited to 'release/src/router/busybox/libbb/xconnect.c')
-rw-r--r-- | release/src/router/busybox/libbb/xconnect.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/release/src/router/busybox/libbb/xconnect.c b/release/src/router/busybox/libbb/xconnect.c new file mode 100644 index 00000000..2945d760 --- /dev/null +++ b/release/src/router/busybox/libbb/xconnect.c @@ -0,0 +1,79 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Connect to host at port using address resolusion from getaddrinfo + * + */ + +#include <unistd.h> +#include <string.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netdb.h> +#include <netinet/in.h> +#include "libbb.h" + +int xconnect(const char *host, const char *port) +{ +#ifdef CONFIG_FEATURE_IPV6 + struct addrinfo hints; + struct addrinfo *res; + struct addrinfo *addr_info; + int error; + int s; + + memset(&hints, 0, sizeof(hints)); + /* set-up hints structure */ + hints.ai_family = PF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + error = getaddrinfo(host, port, &hints, &res); + if (error||!res) + bb_perror_msg_and_die(gai_strerror(error)); + addr_info=res; + while (res) { + s=socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (s<0) + { + error=s; + res=res->ai_next; + continue; + } + /* try to connect() to res->ai_addr */ + error = connect(s, res->ai_addr, res->ai_addrlen); + if (error >= 0) + break; + close(s); + res=res->ai_next; + } + freeaddrinfo(addr_info); + if (error < 0) + { + bb_perror_msg_and_die("Unable to connect to remote host (%s)", host); + } + return s; +#else + struct sockaddr_in s_addr; + int s = socket(AF_INET, SOCK_STREAM, 0); + struct servent *tserv; + int port_nr=htons(atoi(port)); + struct hostent * he; + + if (port_nr==0 && (tserv = getservbyname(port, "tcp")) != NULL) + port_nr = tserv->s_port; + + memset(&s_addr, 0, sizeof(struct sockaddr_in)); + s_addr.sin_family = AF_INET; + s_addr.sin_port = port_nr; + + he = xgethostbyname(host); + memcpy(&s_addr.sin_addr, he->h_addr, sizeof s_addr.sin_addr); + + if (connect(s, (struct sockaddr *)&s_addr, sizeof s_addr) < 0) + { + bb_perror_msg_and_die("Unable to connect to remote host (%s)", host); + } + return s; +#endif +} |