From 64b55e7e1236121ea4197d9a37cfec43b196cfe8 Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Wed, 2 Feb 2022 06:40:10 +0100
Subject: moved ecp, platform -> src

---
 ecp/src/platform/posix/transport.c | 113 +++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 ecp/src/platform/posix/transport.c

(limited to 'ecp/src/platform/posix/transport.c')

diff --git a/ecp/src/platform/posix/transport.c b/ecp/src/platform/posix/transport.c
new file mode 100644
index 0000000..2032ce2
--- /dev/null
+++ b/ecp/src/platform/posix/transport.c
@@ -0,0 +1,113 @@
+#include <stdlib.h>
+#include <unistd.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <poll.h>
+
+#include <core.h>
+#include <tr.h>
+
+#define ADDR_S_MAX  32
+
+int ecp_tr_init(ECPContext *ctx) {
+    return ECP_OK;
+}
+
+int ecp_tr_addr_eq(ECPNetAddr *addr1, ECPNetAddr *addr2) {
+    if (addr1->port != addr2->port) return 0;
+    if (memcmp(addr1->host, addr2->host, sizeof(addr1->host)) != 0) return 0;
+    return 1;
+}
+
+int ecp_tr_addr_set(ECPNetAddr *addr, void *addr_s) {
+    int rv;
+    char addr_c[ADDR_S_MAX];
+    char *colon = NULL;
+    char *endptr = NULL;
+	uint16_t hport;
+
+    memset(addr_c, 0, sizeof(addr_c));
+    strncpy(addr_c, addr_s, ADDR_S_MAX-1);
+    colon = strchr(addr_c, ':');
+    if (colon == NULL) return -1;
+    *colon = '\0';
+    colon++;
+    if (*colon == '\0') return -1;
+    rv = inet_pton(AF_INET, addr_c, addr->host);
+    if (rv != 1) return -1;
+    hport = strtol(colon, &endptr, 10);
+    if (*endptr != '\0') return -1;
+    addr->port = htons(hport);
+
+    return 0;
+}
+
+int ecp_tr_open(ECPSocket *sock, void *addr_s) {
+    struct sockaddr_in _myaddr;
+
+    memset((char *)&_myaddr, 0, sizeof(_myaddr));
+    _myaddr.sin_family = AF_INET;
+    if (addr_s) {
+        ECPNetAddr addr;
+        int rv = ecp_tr_addr_set(&addr, addr_s);
+        if (rv) return rv;
+
+        memcpy((void *)&_myaddr.sin_addr, addr.host, sizeof(addr.host));
+        _myaddr.sin_port = addr.port;
+    } else {
+        _myaddr.sin_addr.s_addr = htonl(INADDR_ANY);
+        _myaddr.sin_port = htons(0);
+    }
+
+    sock->sock = socket(PF_INET, SOCK_DGRAM, 0);
+    if (sock->sock < 0) return sock->sock;
+
+    int rv = bind(sock->sock, (struct sockaddr *)&_myaddr, sizeof(_myaddr));
+    if (rv < 0) {
+        close(sock->sock);
+        return rv;
+    }
+    return ECP_OK;
+}
+
+void ecp_tr_close(ECPSocket *sock) {
+    close(sock->sock);
+}
+
+ssize_t ecp_tr_send(ECPSocket *sock, ECPBuffer *packet, size_t msg_size, ECPNetAddr *addr, unsigned char flags) {
+    struct sockaddr_in servaddr;
+
+    memset((void *)&servaddr, 0, sizeof(servaddr));
+    servaddr.sin_family = AF_INET;
+    servaddr.sin_port = addr->port;
+    memcpy((void *)&servaddr.sin_addr, addr->host, sizeof(addr->host));
+    return sendto(sock->sock, packet->buffer, msg_size, 0, (struct sockaddr *)&servaddr, sizeof(servaddr));
+}
+
+ssize_t ecp_tr_recv(ECPSocket *sock, ECPBuffer *packet, ECPNetAddr *addr, int timeout) {
+    struct sockaddr_in servaddr;
+    socklen_t addrlen = sizeof(servaddr);
+    struct pollfd fds[] = {
+        {sock->sock, POLLIN, 0}
+    };
+
+    int rv = poll(fds, 1, timeout);
+    memset((void *)&servaddr, 0, sizeof(servaddr));
+    if (rv == 1) {
+        ssize_t recvlen = recvfrom(sock->sock, packet->buffer, packet->size, 0, (struct sockaddr *)&servaddr, &addrlen);
+        if (recvlen < 0) return recvlen;
+        if (recvlen < ECP_MIN_PKT) return ECP_ERR_RECV;
+
+        if (addr) {
+            addr->port = servaddr.sin_port;
+            memcpy(addr->host, (void *)&servaddr.sin_addr, sizeof(addr->host));
+        }
+        return recvlen;
+    }
+    return ECP_ERR_TIMEOUT;
+}
+
+void ecp_tr_release(ECPBuffer *packet, unsigned char more) {}
+void ecp_tr_flag_set(unsigned char flags) {}
+void ecp_tr_flag_clear(unsigned char flags) {}
+
-- 
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