1_S(EAI_ADDRFAMILY, N_("Address family for hostname not supported"))
2_S(EAI_AGAIN, N_("Temporary failure in name resolution"))
3_S(EAI_BADFLAGS, N_("Bad value for ai_flags"))
4_S(EAI_FAIL, N_("Non-recoverable failure in name resolution"))
5_S(EAI_FAMILY, N_("ai_family not supported"))
6_S(EAI_MEMORY, N_("Memory allocation failure"))
7_S(EAI_NODATA, N_("No address associated with hostname"))
8_S(EAI_NONAME, N_("Name or service not known"))
9_S(EAI_SERVICE, N_("Servname not supported for ai_socktype"))
10_S(EAI_SOCKTYPE, N_("ai_socktype not supported"))
11_S(EAI_SYSTEM, N_("System error"))
12_S(EAI_INPROGRESS, N_("Processing request in progress"))
13_S(EAI_CANCELED, N_("Request canceled"))
14_S(EAI_NOTCANCELED, N_("Request not canceled"))
15_S(EAI_ALLDONE, N_("All requests done"))
16_S(EAI_INTR, N_("Interrupted by a signal"))
17_S(EAI_IDN_ENCODE, N_("Parameter string not correctly encoded"))

source code of glibc/sysdeps/posix/gai_strerror-strs.h