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hstrerror()

Get an error message string associated with the error return status

Synopsis:

#include <netdb.h>

const char* hstrerror( int err );

Arguments:

err

The error code that you want to get the message for. For more information, see h_errno.

Library:

libsocket

Use the -l socket option to qcc to link against this library.

Description:

The hstrerror() function gets an error message string associated with the error return status from network host-related functions.

Network host-related functions such as the following can return the error status:

• gethostbyaddr(), gethostbyaddr_r()
• gethostbyname(), gethostbyname_r()
• res_query()
• res_search()

You can check the external integer h_errno to see whether this is a temporary failure or an invalid or unknown host.

Returns:

A pointer to the message string affiliated with an error number.

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Don't modify the message string.

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Classification:

Unix

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	Yes
Thread	Yes

See also:

h_errno, herror

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