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 AI_PASSIVE 0x01 28 #define AI_CANONNAME 0x02 29 #define AI_NUMERICHOST 0x04 30 #define AI_V4MAPPED 0x08 31 #define AI_ALL 0x10 32 #define AI_ADDRCONFIG 0x20 33 #define AI_NUMERICSERV 0x400 34 35 36 #define NI_NUMERICHOST 0x01 37 #define NI_NUMERICSERV 0x02 38 #define NI_NOFQDN 0x04 39 #define NI_NAMEREQD 0x08 40 #define NI_DGRAM 0x10 41 #define NI_NUMERICSCOPE 0x100 42 43 #define EAI_BADFLAGS -1 44 #define EAI_NONAME -2 45 #define EAI_AGAIN -3 46 #define EAI_FAIL -4 47 #define EAI_FAMILY -6 48 #define EAI_SOCKTYPE -7 49 #define EAI_SERVICE -8 50 #define EAI_MEMORY -10 51 #define EAI_SYSTEM -11 52 #define EAI_OVERFLOW -12 53 54 int getaddrinfo (const char *__restrict, const char *__restrict, const struct addrinfo *__restrict, struct addrinfo **__restrict); 55 void freeaddrinfo (struct addrinfo *); 56 int getnameinfo (const struct sockaddr *__restrict, socklen_t, char *__restrict, socklen_t, char *__restrict, socklen_t, int); 57 const char *gai_strerror(int); 58 59 60 /* Legacy functions follow (marked OBsolete in SUS) */ 61 62 struct netent { 63 char *n_name; 64 char **n_aliases; 65 int n_addrtype; 66 uint32_t n_net; 67 }; 68 69 struct hostent { 70 char *h_name; 71 char **h_aliases; 72 int h_addrtype; 73 int h_length; 74 char **h_addr_list; 75 }; 76 #define h_addr h_addr_list[0] 77 78 struct servent { 79 char *s_name; 80 char **s_aliases; 81 int s_port; 82 char *s_proto; 83 }; 84 85 struct protoent { 86 char *p_name; 87 char **p_aliases; 88 int p_proto; 89 }; 90 91 void sethostent (int); 92 void endhostent (void); 93 struct hostent *gethostent (void); 94 95 void setnetent (int); 96 void endnetent (void); 97 struct netent *getnetent (void); 98 struct netent *getnetbyaddr (uint32_t, int); 99 struct netent *getnetbyname (const char *); 100 101 void setservent (int); 102 void endservent (void); 103 struct servent *getservent (void); 104 struct servent *getservbyname (const char *, const char *); 105 struct servent *getservbyport (int, const char *); 106 107 void setprotoent (int); 108 void endprotoent (void); 109 struct protoent *getprotoent (void); 110 struct protoent *getprotobyname (const char *); 111 struct protoent *getprotobynumber (int); 112 113 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_POSIX_SOURCE) \ 114 || (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE+0 < 200809L) \ 115 || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700) 116 struct hostent *gethostbyname (const char *); 117 struct hostent *gethostbyaddr (const void *, socklen_t, int); 118 #ifdef __GNUC__ 119 __attribute__((const)) 120 #endif 121 int *__h_errno_location(void); 122 #define h_errno (*__h_errno_location()) 123 #define HOST_NOT_FOUND 1 124 #define TRY_AGAIN 2 125 #define NO_RECOVERY 3 126 #define NO_DATA 4 127 #define NO_ADDRESS NO_DATA 128 #endif 129 130 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 131 void herror(const char *); 132 const char *hstrerror(int); 133 int gethostbyname_r(const char *, struct hostent *, char *, size_t, struct hostent **, int *); 134 int gethostbyname2_r(const char *, int, struct hostent *, char *, size_t, struct hostent **, int *); 135 struct hostent *gethostbyname2(const char *, int); 136 int gethostbyaddr_r(const void *, socklen_t, int, struct hostent *, char *, size_t, struct hostent **, int *); 137 int getservbyport_r(int, const char *, struct servent *, char *, size_t, struct servent **); 138 int getservbyname_r(const char *, const char *, struct servent *, char *, size_t, struct servent **); 139 #define EAI_NODATA -5 140 #define EAI_ADDRFAMILY -9 141 #define EAI_INPROGRESS -100 142 #define EAI_CANCELED -101 143 #define EAI_NOTCANCELED -102 144 #define EAI_ALLDONE -103 145 #define EAI_INTR -104 146 #define EAI_IDN_ENCODE -105 147 #define NI_MAXHOST 1025 148 #define NI_MAXSERV 32 149 #endif 150 151 152 #ifdef __cplusplus 153 } 154 #endif 155 156 #endif 157