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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:44:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:44:51 +0000
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Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+PR_GetHostByAddr
+================
+
+Looks up a host entry by its network address.
+
+
+Syntax
+------
+
+.. code::
+
+ #include <prnetdb.h>
+
+ PRStatus PR_GetHostByAddr(
+ const PRNetAddr *hostaddr,
+ char *buf,
+ PRIntn bufsize,
+ PRHostEnt *hostentry);
+
+
+Parameters
+~~~~~~~~~~
+
+The function has the following parameters:
+
+``hostaddr``
+ A pointer to the IP address of host in question.
+``buf``
+ A pointer to a buffer, allocated by the caller, that is filled in
+ with host data on output. All of the pointers in the ``hostentry``
+ structure point to data saved in this buffer. This buffer is
+ referenced by the runtime during a call to :ref:`PR_EnumerateHostEnt`.
+``bufsize``
+ Number of bytes in the ``buf`` parameter. The buffer must be at least
+ :ref:`PR_NETDB_BUF_SIZE` bytes.
+``hostentry``
+ This structure is allocated by the caller. On output, this structure
+ is filled in by the runtime if the function returns ``PR_SUCCESS``.
+
+
+Returns
+~~~~~~~
+
+The function returns one of the following values:
+
+- If successful, ``PR_SUCCESS``.
+- If unsuccessful, ``PR_FAILURE``. You can retrieve the reason for the
+ failure by calling :ref:`PR_GetError`.
+
+
+Description
+~~~~~~~~~~~
+
+:ref:`PR_GetHostByAddr` is used to perform reverse lookups of network
+addresses. That is, given a valid network address (of type
+:ref:`PRNetAddr`), :ref:`PR_GetHostByAddr` discovers the address' primary
+name, any aliases, and any other network addresses for the same host.