X-Git-Url: http://www.average.org/gitweb/?p=psmb.git;a=blobdiff_plain;f=src%2Fpsmb_socket.c;fp=src%2Fpsmb_socket.c;h=a7c42efa9a6177443264731eff064ad6fe9bfcc4;hp=0000000000000000000000000000000000000000;hb=0f3d787b19881c5d489ba476d1e5895df4f77084;hpb=8309c3b0f167256776fb0cb96fc2c8becd4ed144

diff --git a/src/psmb_socket.c b/src/psmb_socket.c
new file mode 100644
index 0000000..a7c42ef
--- /dev/null
+++ b/src/psmb_socket.c
@@ -0,0 +1,88 @@
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+
+#include <psmb.h>
+#include "psmb_priv.h"
+
+psmb_ctx_t *psmb_new(void)
+{
+	return psmb_new_mm(malloc, free, realloc);
+}
+
+psmb_ctx_t *psmb_new_mm(void *(*malloc)(size_t size),
+			void (*free)(void *ptr),
+			void *(*realloc)(void *ptr, size_t size))
+{
+	psmb_ctx_t *ctx = (*malloc)(sizeof(psmb_ctx_t));
+	if (!ctx)
+		return NULL;
+	*ctx = (psmb_ctx_t){
+		.fd = -1,
+		.malloc = malloc, .free = free, .realloc = realloc,
+		.pmtu = PSMB_DEFAULT_PMTU, .port = PSMB_DEFAULT_PORT};
+	return ctx;
+}
+
+psmb_result_t psmb_set_pmtu(psmb_ctx_t *ctx, unsigned int pmtu)
+{
+	if (ctx->fd == -1) {
+		ctx->pmtu = pmtu;
+		return (psmb_result_t){PSMB_OK};
+	} else {
+		errno = EBUSY;
+		return (psmb_result_t){PSMB_ERROR};
+	}
+}
+
+psmb_result_t psmb_set_port(psmb_ctx_t *ctx, unsigned short port)
+{
+	if (ctx->fd == -1) {
+		ctx->port = port;
+		return (psmb_result_t){PSMB_OK};
+	} else {
+		errno = EBUSY;
+		return (psmb_result_t){PSMB_ERROR};
+	}
+}
+
+psmb_result_t psmb_open(psmb_ctx_t *ctx)
+{
+	unsigned long on = 1;
+	struct sockaddr_in6 addr = (struct sockaddr_in6){
+		.sin6_family = AF_INET6,
+		.sin6_addr = in6addr_any,
+		.sin6_port = htons(ctx->port)
+	};
+
+	if (ctx->fd != -1) {
+		errno = EBUSY;
+		return (psmb_result_t){PSMB_ERROR};
+	}
+	ctx->fd = socket(AF_INET6, SOCK_DGRAM, IPPROTO_IPV6);
+	if (ctx->fd == -1) {
+		return (psmb_result_t){PSMB_ERROR};
+	}
+	if (setsockopt(ctx->fd, SOL_SOCKET, SO_REUSEADDR,
+			&on, sizeof(on)) < 0) {
+		close(ctx->fd);
+		ctx->fd = -1;
+		return (psmb_result_t){PSMB_ERROR};
+	}
+	if (setsockopt(ctx->fd, IPPROTO_IPV6, IPV6_PKTINFO,
+			&on, sizeof(on)) < 0) {
+		close(ctx->fd);
+		ctx->fd = -1;
+		return (psmb_result_t){PSMB_ERROR};
+	}
+	if (bind(ctx->fd, (struct sockaddr *)&addr,
+			sizeof(struct sockaddr)) == -1) {
+		close(ctx->fd);
+		ctx->fd = -1;
+		return (psmb_result_t){PSMB_ERROR};
+	}
+	return (psmb_result_t){PSMB_OK};
+}