解决一个擦除的bug

Drivers/BSP/NET/lftpd/lftpd_inet.c

@@ -0,0 +1,161 @@
+#define DBG_TAG "[LFT_INET]"
+
+#include "private/lftpd_inet.h"
+#include "dbg_log.h"
+#include "net_socket.h"
+#include <string.h>
+
+int lftpd_inet_listen(int port)
+{
+    int s = net_socket(NET_AF_INET, NET_SOCK_STREAM, 0);
+    if (s < 0) {
+        DBG_ERROR("error creating listener socket");
+        return -1;
+    }
+
+    struct net_sockaddr_in addr;
+    addr.sin_family = NET_AF_INET;
+    addr.sin_port = net_htons((uint16_t)port);
+    addr.sin_addr.s_addr = 0;
+
+    if (net_bind(s, (struct net_sockaddr *)&addr, sizeof(addr)) < 0) {
+        DBG_ERROR("error binding listener port %d", port);
+        net_close(s);
+        return -1;
+    }
+
+    if (net_listen(s, 0) < 0) {
+        DBG_ERROR("error listening on socket");
+        net_close(s);
+        return -1;
+    }
+
+    return s;
+}
+
+int lftpd_inet_listen_multi(int port, int backlog)
+{
+    int s = net_socket(NET_AF_INET, NET_SOCK_STREAM, 0);
+    if (s < 0) {
+        DBG_ERROR("error creating multi listener socket");
+        return -1;
+    }
+
+    struct net_sockaddr_in addr;
+    addr.sin_family = NET_AF_INET;
+    addr.sin_port = net_htons((uint16_t)port);
+    addr.sin_addr.s_addr = 0;
+
+    if (net_bind(s, (struct net_sockaddr *)&addr, sizeof(addr)) < 0) {
+        DBG_ERROR("error binding multi listener port %d", port);
+        net_close(s);
+        return -1;
+    }
+
+    if (net_listen(s, backlog) < 0) {
+        DBG_ERROR("error listening on multi socket");
+        net_close(s);
+        return -1;
+    }
+
+    return s;
+}
+
+int lftpd_inet_get_socket_port(int socket)
+{
+    struct net_sockaddr_in addr;
+    int addrlen = sizeof(addr);
+
+    if (net_getsockname(socket, (struct net_sockaddr *)&addr, &addrlen) < 0) {
+        DBG_ERROR("error getting socket port number");
+        return -1;
+    }
+
+    return (int)net_ntohs(addr.sin_port);
+}
+
+int lftpd_inet_accept(int socket)
+{
+    while (1) {
+        int s = net_accept(socket, NULL, NULL);
+        if (s >= 0) {
+            return s;
+        }
+        vTaskDelay(pdMS_TO_TICKS(10));
+    }
+}
+
+int lftpd_inet_read_line(int socket, char *buffer, size_t buffer_len)
+{
+    memset(buffer, 0, buffer_len);
+    int total_read_len = 0;
+
+    while (total_read_len < (int)buffer_len) {
+        int read_len = net_recv(socket,
+                                buffer + total_read_len,
+                                buffer_len - total_read_len - 1,
+                                0);
+        if (read_len == 0) {
+            return -1;
+        }
+        if (read_len < 0) {
+            return read_len;
+        }
+
+        total_read_len += read_len;
+
+        char *p = strstr(buffer, "\r\n");
+        if (p != NULL) {
+            *p = '\0';
+            return 0;
+        }
+    }
+
+    return -1;
+}
+
+int lftpd_inet_write_string(int socket, const char *message)
+{
+    const char *p = message;
+    int length = (int)strlen(message);
+
+    while (length > 0) {
+        int write_len = net_send(socket, p, length, 0);
+        if (write_len < 0) {
+            DBG_ERROR("write error");
+            return write_len;
+        }
+        p += write_len;
+        length -= write_len;
+    }
+
+    return 0;
+}
+
+int lftpd_inet_write(int socket, const void *buf, int len)
+{
+    const char *p = (const char *)buf;
+    int remaining = len;
+
+    while (remaining > 0) {
+        int n = net_send(socket, p, remaining, 0);
+        if (n < 0) {
+            return n;
+        }
+        p += n;
+        remaining -= n;
+    }
+
+    return len;
+}
+
+int lftpd_inet_read(int socket, void *buf, int len)
+{
+    int n = net_recv(socket, buf, len, 0);
+    return n;
+}
+
+int lftpd_inet_close(int socket)
+{
+    return net_close(socket);
+}