X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Fsocket-util.c;h=954686f974e8561ba65484a09ace623ba064e993;hb=275b39fe4bf19f244114dbefa58e0d77047eff4a;hp=39b6142e88493565683a30baa3746bf68c212bdf;hpb=641906e9366891e0ad3e6e38b7396a427678c4cf;p=elogind.git

diff --git a/src/shared/socket-util.c b/src/shared/socket-util.c
index 39b6142e8..954686f97 100644
--- a/src/shared/socket-util.c
+++ b/src/shared/socket-util.c
@@ -38,6 +38,7 @@
 #include "path-util.h"
 #include "socket-util.h"
 #include "missing.h"
+#include "fileio.h"
 
 int socket_address_parse(SocketAddress *a, const char *s) {
         int r;
@@ -67,7 +68,7 @@ int socket_address_parse(SocketAddress *a, const char *s) {
                 errno = 0;
                 if (inet_pton(AF_INET6, n, &a->sockaddr.in6.sin6_addr) <= 0) {
                         free(n);
-                        return errno != 0 ? -errno : -EINVAL;
+                        return errno > 0 ? -errno : -EINVAL;
                 }
 
                 free(n);
@@ -203,7 +204,7 @@ int socket_address_parse_netlink(SocketAddress *a, const char *s) {
 
         errno = 0;
         if (sscanf(s, "%ms %u", &sfamily, &group) < 1)
-                return errno ? -errno : -EINVAL;
+                return errno > 0 ? -errno : -EINVAL;
 
         family = netlink_family_from_string(sfamily);
         if (family < 0)
@@ -299,7 +300,8 @@ int socket_address_print(const SocketAddress *a, char **p) {
         case AF_INET: {
                 char *ret;
 
-                if (!(ret = new(char, INET_ADDRSTRLEN+1+5+1)))
+                ret = new(char, INET_ADDRSTRLEN+1+5+1);
+                if (!ret)
                         return -ENOMEM;
 
                 if (!inet_ntop(AF_INET, &a->sockaddr.in4.sin_addr, ret, INET_ADDRSTRLEN)) {
@@ -315,7 +317,8 @@ int socket_address_print(const SocketAddress *a, char **p) {
         case AF_INET6: {
                 char *ret;
 
-                if (!(ret = new(char, 1+INET6_ADDRSTRLEN+2+5+1)))
+                ret = new(char, 1+INET6_ADDRSTRLEN+2+5+1);
+                if (!ret)
                         return -ENOMEM;
 
                 ret[0] = '[';
@@ -333,8 +336,8 @@ int socket_address_print(const SocketAddress *a, char **p) {
                 char *ret;
 
                 if (a->size <= offsetof(struct sockaddr_un, sun_path)) {
-
-                        if (!(ret = strdup("<unnamed>")))
+                        ret = strdup("<unnamed>");
+                        if (!ret)
                                 return -ENOMEM;
 
                 } else if (a->sockaddr.un.sun_path[0] == 0) {
@@ -345,7 +348,8 @@ int socket_address_print(const SocketAddress *a, char **p) {
                          * more than one NUL byte. That is
                          * actually an invalid assumption */
 
-                        if (!(ret = new(char, sizeof(a->sockaddr.un.sun_path)+1)))
+                        ret = new(char, sizeof(a->sockaddr.un.sun_path)+1);
+                        if (!ret)
                                 return -ENOMEM;
 
                         ret[0] = '@';
@@ -353,8 +357,8 @@ int socket_address_print(const SocketAddress *a, char **p) {
                         ret[sizeof(a->sockaddr.un.sun_path)] = 0;
 
                 } else {
-
-                        if (!(ret = strdup(a->sockaddr.un.sun_path)))
+                        ret = strdup(a->sockaddr.un.sun_path);
+                        if (!ret)
                                 return -ENOMEM;
                 }
 
@@ -363,7 +367,7 @@ int socket_address_print(const SocketAddress *a, char **p) {
         }
 
         case AF_NETLINK: {
-                char _cleanup_free_ *sfamily = NULL;
+                _cleanup_free_ char *sfamily = NULL;
 
                 r = netlink_family_to_string_alloc(a->protocol, &sfamily);
                 if (r < 0)
@@ -485,16 +489,16 @@ bool socket_address_is_netlink(const SocketAddress *a, const char *s) {
         return socket_address_equal(a, &b);
 }
 
-bool socket_address_needs_mount(const SocketAddress *a, const char *prefix) {
+const char* socket_address_get_path(const SocketAddress *a) {
         assert(a);
 
         if (socket_address_family(a) != AF_UNIX)
-                return false;
+                return NULL;
 
         if (a->sockaddr.un.sun_path[0] == 0)
-                return false;
+                return NULL;
 
-        return path_startswith(a->sockaddr.un.sun_path, prefix);
+        return a->sockaddr.un.sun_path;
 }
 
 bool socket_ipv6_is_supported(void) {
@@ -564,6 +568,45 @@ bool socket_address_matches_fd(const SocketAddress *a, int fd) {
         return false;
 }
 
+int make_socket_fd(const char* address, int flags) {
+        SocketAddress a;
+        int fd, r;
+        _cleanup_free_ char *p = NULL;
+
+        r = socket_address_parse(&a, address);
+        if (r < 0) {
+                log_error("failed to parse socket: %s", strerror(-r));
+                return r;
+        }
+
+        fd = socket(socket_address_family(&a), flags, 0);
+        if (fd < 0) {
+                log_error("socket(): %m");
+                return -errno;
+        }
+
+        r = socket_address_print(&a, &p);
+        if (r < 0) {
+                log_error("socket_address_print(): %s", strerror(-r));
+                return r;
+        }
+        log_info("Listening on %s", p);
+
+        r = bind(fd, &a.sockaddr.sa, a.size);
+        if (r < 0) {
+                log_error("bind to %s: %m", address);
+                return -errno;
+        }
+
+        r = listen(fd, SOMAXCONN);
+        if (r < 0) {
+                log_error("listen on %s: %m", address);
+                return -errno;
+        }
+
+        return fd;
+}
+
 static const char* const netlink_family_table[] = {
         [NETLINK_ROUTE] = "route",
         [NETLINK_FIREWALL] = "firewall",