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         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