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GAI_STRERROR(3) Library Functions Manual GAI_STRERROR(3) NAME gai_strerror -- get error message string from EAI_xxx error code SYNOPSIS #include <sys/types.h> #include <sys/socket.h> #include <netdb.h> const char * gai_strerror(int ecode); DESCRIPTION The gai_strerror() function returns an error message string corresponding to the error code returned by getaddrinfo(3) or getnameinfo(3). The following error codes and their meaning are defined in <netdb.h>: EAI_ADDRFAMILY Address family for hostname not supported EAI_AGAIN Name could not be resolved at this time EAI_BADFLAGS flags parameter had an invalid value EAI_BADHINTS invalid value for hints EAI_FAIL Non-recoverable failure in name resolution EAI_FAMILY Address family was not recognized EAI_MEMORY Memory allocation failure EAI_NODATA No address associated with hostname EAI_NONAME Name does not resolve EAI_OVERFLOW argument buffer overflow EAI_PROTOCOL Resolved protocol is unknown EAI_SERVICE Service was not recognized for socket type EAI_SOCKTYPE Intended socket type was not recognized EAI_SYSTEM System error returned in errno RETURN VALUES The gai_strerror() function returns a pointer to the error message string corresponding to ecode. If ecode is out of range, an implementation-spe- cific error message string is returned. SEE ALSO getaddrinfo(3), getnameinfo(3) STANDARDS RFC 3493 Basic Socket Interface Extensions for IPv6 EAI_ADDRFAMILY and EAI_NODATA were in previous RFCs, but not in RFC 3493. They are not in POSIX (IEEE Std 1003.1-2017). They were in FreeBSD before 5.2, and were re-added for 14.0. EAI_BADHINTS, EAI_OVERFLOW, and EAI_PRO- TOCOL are not in RFC 3493 or POSIX. FreeBSD 14.3 November 2, 2022 GAI_STRERROR(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | STANDARDS
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