include/netdb.h

   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 {
  18         int ai_flags;
  19         int ai_family;
  20         int ai_socktype;
  21         int ai_protocol;
  22         socklen_t ai_addrlen;
  23         struct sockaddr *ai_addr;
  24         char *ai_canonname;
  25         struct addrinfo *ai_next;
  26 };
  27
  28 #define IPPORT_RESERVED 1024
  29
  30 #define AI_PASSIVE      0x01
  31 #define AI_CANONNAME    0x02
  32 #define AI_NUMERICHOST  0x04
  33 #define AI_V4MAPPED     0x08
  34 #define AI_ALL          0x10
  35 #define AI_ADDRCONFIG   0x20
  36 #define AI_NUMERICSERV  0x400
  37
  38
  39 #define NI_NUMERICHOST  0x01
  40 #define NI_NUMERICSERV  0x02
  41 #define NI_NOFQDN       0x04
  42 #define NI_NAMEREQD     0x08
  43 #define NI_DGRAM        0x10
  44 #define NI_NUMERICSCOPE 0x100
  45
  46 #define EAI_BADFLAGS   -1
  47 #define EAI_NONAME     -2
  48 #define EAI_AGAIN      -3
  49 #define EAI_FAIL       -4
  50 #define EAI_FAMILY     -6
  51 #define EAI_SOCKTYPE   -7
  52 #define EAI_SERVICE    -8
  53 #define EAI_MEMORY     -10
  54 #define EAI_SYSTEM     -11
  55 #define EAI_OVERFLOW   -12
  56
  57 int getaddrinfo (const char *__restrict, const char *__restrict, const struct addrinfo *__restrict, struct addrinfo **__restrict);
  58 void freeaddrinfo (struct addrinfo *);
  59 int getnameinfo (const struct sockaddr *__restrict, socklen_t, char *__restrict, socklen_t, char *__restrict, socklen_t, int);
  60 const char *gai_strerror(int);
  61
  62
  63 /* Legacy functions follow (marked OBsolete in SUS) */
  64
  65 struct netent
  66 {
  67         char *n_name;
  68         char **n_aliases;
  69         int n_addrtype;
  70         uint32_t n_net;
  71 };
  72
  73 struct hostent
  74 {
  75         char *h_name;
  76         char **h_aliases;
  77         int h_addrtype;
  78         int h_length;
  79         char **h_addr_list;
  80 };
  81 #define h_addr h_addr_list[0]
  82
  83 struct servent
  84 {
  85         char *s_name;
  86         char **s_aliases;
  87         int s_port;
  88         char *s_proto;
  89 };
  90
  91 struct protoent
  92 {
  93         char *p_name;
  94         char **p_aliases;
  95         int p_proto;
  96 };
  97
  98 void sethostent (int);
  99 void endhostent (void);
 100 struct hostent *gethostent (void);
 101
 102 void setnetent (int);
 103 void endnetent (void);
 104 struct netent *getnetent (void);
 105 struct netent *getnetbyaddr (uint32_t, int);
 106 struct netent *getnetbyname (const char *);
 107
 108 void setservent (int);
 109 void endservent (void);
 110 struct servent *getservent (void);
 111 struct servent *getservbyname (const char *, const char *);
 112 struct servent *getservbyport (int, const char *);
 113
 114 void setprotoent (int);
 115 void endprotoent (void);
 116 struct protoent *getprotoent (void);
 117 struct protoent *getprotobyname (const char *);
 118 struct protoent *getprotobynumber (int);
 119
 120 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_POSIX_SOURCE) \
 121  || (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE+0 < 200809L) \
 122  || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
 123 struct hostent *gethostbyname (const char *);
 124 struct hostent *gethostbyaddr (const void *, socklen_t, int);
 125 int *__h_errno_location(void);
 126 #define h_errno (*__h_errno_location())
 127 #define HOST_NOT_FOUND 1
 128 #define TRY_AGAIN      2
 129 #define NO_RECOVERY    3
 130 #define NO_DATA        4
 131 #define NO_ADDRESS     NO_DATA
 132 #endif
 133
 134 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 135 void herror(const char *);
 136 const char *hstrerror(int);
 137 int gethostbyname_r(const char *, struct hostent *, char *, size_t, struct hostent **, int *);
 138 int gethostbyname2_r(const char *, int, struct hostent *, char *, size_t, struct hostent **, int *);
 139 struct hostent *gethostbyname2(const char *, int);
 140 int gethostbyaddr_r(const void *, socklen_t, int, struct hostent *, char *, size_t, struct hostent **, int *);
 141 int getservbyport_r(int, const char *, struct servent *, char *, size_t, struct servent **);
 142 int getservbyname_r(const char *, const char *, struct servent *, char *, size_t, struct servent **);
 143 #define EAI_NODATA     -5
 144 #define EAI_ADDRFAMILY -9
 145 #define EAI_INPROGRESS -100
 146 #define EAI_CANCELED   -101
 147 #define EAI_NOTCANCELED -102
 148 #define EAI_ALLDONE    -103
 149 #define EAI_INTR       -104
 150 #define EAI_IDN_ENCODE -105
 151 #define NI_MAXHOST 255
 152 #define NI_MAXSERV 32
 153 #endif
 154
 155
 156 #ifdef __cplusplus
 157 }
 158 #endif
 159
 160 #endif