From 386ccdd61e8256c8b21ee27ee2fc12438fc5ca98 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Tue, 17 Oct 2023 11:30:20 +0200
Subject: Adding upstream version 1.43.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 libnetdata/socket/socket.c | 37 ++++++++++++++++++++++++++++++++++++-
 libnetdata/socket/socket.h |  1 +
 2 files changed, 37 insertions(+), 1 deletion(-)

(limited to 'libnetdata/socket')

diff --git a/libnetdata/socket/socket.c b/libnetdata/socket/socket.c
index e7d0b4807..67dc4c71c 100644
--- a/libnetdata/socket/socket.c
+++ b/libnetdata/socket/socket.c
@@ -10,6 +10,40 @@
 
 #include "../libnetdata.h"
 
+bool ip_to_hostname(const char *ip, char *dst, size_t dst_len) {
+    if(!dst || !dst_len)
+        return false;
+
+    struct sockaddr_in sa;
+    struct sockaddr_in6 sa6;
+    struct sockaddr *sa_ptr;
+    int sa_len;
+
+    // Try to convert the IP address to sockaddr_in (IPv4)
+    if (inet_pton(AF_INET, ip, &(sa.sin_addr)) == 1) {
+        sa.sin_family = AF_INET;
+        sa_ptr = (struct sockaddr *)&sa;
+        sa_len = sizeof(sa);
+    }
+        // Try to convert the IP address to sockaddr_in6 (IPv6)
+    else if (inet_pton(AF_INET6, ip, &(sa6.sin6_addr)) == 1) {
+        sa6.sin6_family = AF_INET6;
+        sa_ptr = (struct sockaddr *)&sa6;
+        sa_len = sizeof(sa6);
+    }
+
+    else {
+        dst[0] = '\0';
+        return false;
+    }
+
+    // Perform the reverse lookup
+    int res = getnameinfo(sa_ptr, sa_len, dst, dst_len, NULL, 0, NI_NAMEREQD);
+    if(res != 0)
+        return false;
+
+    return true;
+}
 
 SOCKET_PEERS socket_peers(int sock_fd) {
     SOCKET_PEERS peers;
@@ -810,7 +844,7 @@ int connect_to_this_ip46(int protocol, int socktype, const char *host, uint32_t
             errno = 0;
             if(connect(fd, ai->ai_addr, ai->ai_addrlen) < 0) {
                 if(errno == EALREADY || errno == EINPROGRESS) {
-                    netdata_log_info("Waiting for connection to ip %s port %s to be established", hostBfr, servBfr);
+                    internal_error(true, "Waiting for connection to ip %s port %s to be established", hostBfr, servBfr);
 
                     // Convert 'struct timeval' to milliseconds for poll():
                     int timeout_milliseconds = timeout->tv_sec * 1000 + timeout->tv_usec / 1000;
@@ -835,6 +869,7 @@ int connect_to_this_ip46(int protocol, int socktype, const char *host, uint32_t
                     }
                     else if (ret == 0) {
                         // poll() timed out, the connection is not established within the specified timeout.
+                        errno = 0;
                         netdata_log_error("Timed out while connecting to '%s', port '%s'.", hostBfr, servBfr);
                         close(fd);
                         fd = -1;
diff --git a/libnetdata/socket/socket.h b/libnetdata/socket/socket.h
index c4bd47360..e4ca08d47 100644
--- a/libnetdata/socket/socket.h
+++ b/libnetdata/socket/socket.h
@@ -243,5 +243,6 @@ typedef struct socket_peers {
 } SOCKET_PEERS;
 
 SOCKET_PEERS socket_peers(int sock_fd);
+bool ip_to_hostname(const char *ip, char *dst, size_t dst_len);
 
 #endif //NETDATA_SOCKET_H
-- 
cgit v1.2.3