1 #ifndef _NETDB_H 2 #define _NETDB_H 3 4 #ifdef __cplusplus 5 extern "C" { 6 #endif 7 8 #include <features.h> 9 #include <netinet/in.h> 10 11 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 12 #define __NEED_size_t 13 #include <bits/alltypes.h> 14 #endif 15 16 struct addrinfo { 17 int ai_flags; 18 int ai_family; 19 int ai_socktype; 20 int ai_protocol; 21 socklen_t ai_addrlen; 22 struct sockaddr *ai_addr; 23 char *ai_canonname; 24 struct addrinfo *ai_next; 25 }; 26 27 #define IPPORT_RESERVED 1024 28 29 #define AI_PASSIVE 0x01 30 #define AI_CANONNAME 0x02 31 #define AI_NUMERICHOST 0x04 32 #define AI_V4MAPPED 0x08 33 #define AI_ALL 0x10 34 #define AI_ADDRCONFIG 0x20 35 #define AI_NUMERICSERV 0x400 36 37 38 #define NI_NUMERICHOST 0x01 39 #define NI_NUMERICSERV 0x02 40 #define NI_NOFQDN 0x04 41 #define NI_NAMEREQD 0x08 42 #define NI_DGRAM 0x10 43 #define NI_NUMERICSCOPE 0x100 44 45 #define EAI_BADFLAGS -1 46 #define EAI_NONAME -2 47 #define EAI_AGAIN -3 48 #define EAI_FAIL -4 49 #define EAI_FAMILY -6 50 #define EAI_SOCKTYPE -7 51 #define EAI_SERVICE -8 52 #define EAI_MEMORY -10 53 #define EAI_SYSTEM -11 54 #define EAI_OVERFLOW -12 55 56 int getaddrinfo (const char *__restrict, const char *__restrict, const struct addrinfo *__restrict, struct addrinfo **__restrict); 57 void freeaddrinfo (struct addrinfo *); 58 int getnameinfo (const struct sockaddr *__restrict, socklen_t, char *__restrict, socklen_t, char *__restrict, socklen_t, int); 59 const char *gai_strerror(int); 60 61 62 /* Legacy functions follow (marked OBsolete in SUS) */ 63 64 struct netent { 65 char *n_name; 66 char **n_aliases; 67 int n_addrtype; 68 uint32_t n_net; 69 }; 70 71 struct hostent { 72 char *h_name; 73 char **h_aliases; 74 int h_addrtype; 75 int h_length; 76 char **h_addr_list; 77 }; 78 #define h_addr h_addr_list[0] 79 80 struct servent { 81 char *s_name; 82 char **s_aliases; 83 int s_port; 84 char *s_proto; 85 }; 86 87 struct protoent { 88 char *p_name; 89 char **p_aliases; 90 int p_proto; 91 }; 92 93 void sethostent (int); 94 void endhostent (void); 95 struct hostent *gethostent (void); 96 97 void setnetent (int); 98 void endnetent (void); 99 struct netent *getnetent (void); 100 struct netent *getnetbyaddr (uint32_t, int); 101 struct netent *getnetbyname (const char *); 102 103 void setservent (int); 104 void endservent (void); 105 struct servent *getservent (void); 106 struct servent *getservbyname (const char *, const char *); 107 struct servent *getservbyport (int, const char *); 108 109 void setprotoent (int); 110 void endprotoent (void); 111 struct protoent *getprotoent (void); 112 struct protoent *getprotobyname (const char *); 113 struct protoent *getprotobynumber (int); 114 115 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_POSIX_SOURCE) \ 116 || (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE+0 < 200809L) \ 117 || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700) 118 struct hostent *gethostbyname (const char *); 119 struct hostent *gethostbyaddr (const void *, socklen_t, int); 120 int *__h_errno_location(void); 121 #define h_errno (*__h_errno_location()) 122 #define HOST_NOT_FOUND 1 123 #define TRY_AGAIN 2 124 #define NO_RECOVERY 3 125 #define NO_DATA 4 126 #define NO_ADDRESS NO_DATA 127 #endif 128 129 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 130 void herror(const char *); 131 const char *hstrerror(int); 132 int gethostbyname_r(const char *, struct hostent *, char *, size_t, struct hostent **, int *); 133 int gethostbyname2_r(const char *, int, struct hostent *, char *, size_t, struct hostent **, int *); 134 struct hostent *gethostbyname2(const char *, int); 135 int gethostbyaddr_r(const void *, socklen_t, int, struct hostent *, char *, size_t, struct hostent **, int *); 136 int getservbyport_r(int, const char *, struct servent *, char *, size_t, struct servent **); 137 int getservbyname_r(const char *, const char *, struct servent *, char *, size_t, struct servent **); 138 #define EAI_NODATA -5 139 #define EAI_ADDRFAMILY -9 140 #define EAI_INPROGRESS -100 141 #define EAI_CANCELED -101 142 #define EAI_NOTCANCELED -102 143 #define EAI_ALLDONE -103 144 #define EAI_INTR -104 145 #define EAI_IDN_ENCODE -105 146 #define NI_MAXHOST 255 147 #define NI_MAXSERV 32 148 #endif 149 150 151 #ifdef __cplusplus 152 } 153 #endif 154 155 #endif 156