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sockets: add inet_connect_opts 

Add inet_connect_opts().  Does the same as inet_connect(), but uses
QemuOpts.  inet_connect() is a compatibility wrapper for
inet_connect_opts() now and should go away some day.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2009-09-10 10:58:40 +02:00 committed by Anthony Liguori
parent 108af7b957
commit f4c94c7c51
2 changed files with 97 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

129
qemu-sockets.c
View File

@ -37,6 +37,21 @@ QemuOptsList dummy_opts = {
{
.name = "path",
.type = QEMU_OPT_STRING,
},{
.name = "host",
.type = QEMU_OPT_STRING,
},{
.name = "port",
.type = QEMU_OPT_STRING,
},{
.name = "to",
.type = QEMU_OPT_NUMBER,
},{
.name = "ipv4",
.type = QEMU_OPT_BOOL,
},{
.name = "ipv6",
.type = QEMU_OPT_BOOL,
},
{ /* end if list */ }
},
@ -237,11 +252,11 @@ listen:
return slisten;
}
int inet_connect(const char *str, int socktype)
int inet_connect_opts(QemuOpts *opts)
{
struct addrinfo ai,*res,*e;
char addr[64];
char port[33];
const char *addr;
const char *port;
char uaddr[INET6_ADDRSTRLEN+1];
char uport[33];
int sock,rc;
@ -249,44 +264,24 @@ int inet_connect(const char *str, int socktype)
memset(&ai,0, sizeof(ai));
ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
ai.ai_family = PF_UNSPEC;
ai.ai_socktype = socktype;
ai.ai_socktype = SOCK_STREAM;
/* parse address */
if (str[0] == '[') {
/* IPv6 addr */
if (2 != sscanf(str,"[%64[^]]]:%32[^,]",addr,port)) {
fprintf(stderr, "%s: ipv6 parse error (%s)\n",
__FUNCTION__, str);
return -1;
}
ai.ai_family = PF_INET6;
} else if (qemu_isdigit(str[0])) {
/* IPv4 addr */
if (2 != sscanf(str,"%64[0-9.]:%32[^,]",addr,port)) {
fprintf(stderr, "%s: ipv4 parse error (%s)\n",
__FUNCTION__, str);
return -1;
}
ai.ai_family = PF_INET;
} else {
/* hostname */
if (2 != sscanf(str,"%64[^:]:%32[^,]",addr,port)) {
fprintf(stderr, "%s: hostname parse error (%s)\n",
__FUNCTION__, str);
return -1;
}
addr = qemu_opt_get(opts, "host");
port = qemu_opt_get(opts, "port");
if (addr == NULL || port == NULL) {
fprintf(stderr, "inet_connect: host and/or port not specified\n");
return -1;
}
/* parse options */
if (strstr(str, ",ipv4"))
if (qemu_opt_get_bool(opts, "ipv4", 0))
ai.ai_family = PF_INET;
if (strstr(str, ",ipv6"))
if (qemu_opt_get_bool(opts, "ipv6", 0))
ai.ai_family = PF_INET6;
/* lookup */
if (0 != (rc = getaddrinfo(addr, port, &ai, &res))) {
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", gai_strerror(rc),
addr, port);
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
gai_strerror(rc));
return -1;
}
if (sockets_debug)
@ -327,6 +322,74 @@ int inet_connect(const char *str, int socktype)
return -1;
}
/* compatibility wrapper */
static int inet_parse(QemuOpts *opts, const char *str)
{
const char *optstr, *h;
char addr[64];
char port[33];
int pos;
/* parse address */
if (str[0] == ':') {
/* no host given */
addr[0] = '\0';
if (1 != sscanf(str,":%32[^,]%n",port,&pos)) {
fprintf(stderr, "%s: portonly parse error (%s)\n",
__FUNCTION__, str);
return -1;
}
} else if (str[0] == '[') {
/* IPv6 addr */
if (2 != sscanf(str,"[%64[^]]]:%32[^,]%n",addr,port,&pos)) {
fprintf(stderr, "%s: ipv6 parse error (%s)\n",
__FUNCTION__, str);
return -1;
}
qemu_opt_set(opts, "ipv6", "yes");
} else if (qemu_isdigit(str[0])) {
/* IPv4 addr */
if (2 != sscanf(str,"%64[0-9.]:%32[^,]%n",addr,port,&pos)) {
fprintf(stderr, "%s: ipv4 parse error (%s)\n",
__FUNCTION__, str);
return -1;
}
qemu_opt_set(opts, "ipv4", "yes");
} else {
/* hostname */
if (2 != sscanf(str,"%64[^:]:%32[^,]%n",addr,port,&pos)) {
fprintf(stderr, "%s: hostname parse error (%s)\n",
__FUNCTION__, str);
return -1;
}
}
qemu_opt_set(opts, "host", addr);
qemu_opt_set(opts, "port", port);
/* parse options */
optstr = str + pos;
h = strstr(optstr, ",to=");
if (h)
qemu_opt_set(opts, "to", h+4);
if (strstr(optstr, ",ipv4"))
qemu_opt_set(opts, "ipv4", "yes");
if (strstr(optstr, ",ipv6"))
qemu_opt_set(opts, "ipv6", "yes");
return 0;
}
int inet_connect(const char *str, int socktype)
{
QemuOpts *opts;
int sock = -1;
opts = qemu_opts_create(&dummy_opts, NULL, 0);
if (inet_parse(opts, str) == 0)
sock = inet_connect_opts(opts);
qemu_opts_del(opts);
return sock;
}
#ifndef _WIN32
int unix_listen_opts(QemuOpts *opts)

1
qemu_socket.h
View File

@ -38,6 +38,7 @@ int send_all(int fd, const void *buf, int len1);
/* New, ipv6-ready socket helper functions, see qemu-sockets.c */
int inet_listen(const char *str, char *ostr, int olen,
int socktype, int port_offset);
int inet_connect_opts(QemuOpts *opts);
int inet_connect(const char *str, int socktype);
int unix_listen_opts(QemuOpts *opts);