1 """ |
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2 Libc stuff |
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3 """ |
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4 |
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5 cdef extern from "stdint.h" : |
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6 # yes, these are "wrong" |
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7 ctypedef unsigned char uint8_t |
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8 ctypedef unsigned short uint16_t |
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9 ctypedef unsigned int uint32_t |
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10 |
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11 ctypedef signed char int8_t |
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12 ctypedef signed short int16_t |
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13 ctypedef signed int int32_t |
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14 |
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15 cdef extern from "sys/types.h" : |
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16 # potentially wrong... |
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17 ctypedef signed long ssize_t |
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18 |
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19 # <linux/types.h> |
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20 cdef extern from "linux/types.h" : |
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21 ctypedef uint8_t __u8 |
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22 ctypedef uint16_t __u16 |
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23 ctypedef uint32_t __u32 |
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24 |
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25 ctypedef int8_t __s8 |
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26 ctypedef int16_t __s16 |
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27 ctypedef int32_t __s32 |
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28 |
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29 cdef extern from "errno.h" : |
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30 int errno |
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31 |
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32 cdef extern from "string.h" : |
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33 void* memcpy (void *dest, void *src, size_t n) |
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34 void* memset (void *s, int c, size_t n) |
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35 |
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36 char* strerror (int errno) |
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37 |
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38 cdef extern from "alloca.h" : |
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39 void* alloca (size_t size) |
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40 |
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41 cdef extern from "sys/uio.h" : |
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42 struct iovec : |
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43 void *iov_base |
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44 size_t iov_len |
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45 |
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46 cdef extern from "arpa/inet.h" : |
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47 # XXX: correct?! |
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48 ctypedef uint32_t socklen_t |
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49 |
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50 char* c_inet_ntop "inet_ntop" (int af, void *sockaddr, char *buf, socklen_t len) |
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51 int c_inet_pton "inet_pton" (int af, char *src, void *dst) |
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52 |
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53 # <sys/socket.h> |
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54 cdef extern from "sys/socket.h" : |
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55 # socket types |
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56 enum : |
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57 SOCK_STREAM |
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58 SOCK_DGRAM |
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59 SOCK_RAW |
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60 SOCK_RDM |
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61 SOCK_SEQPACKET |
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62 SOCK_PACKET |
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63 |
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64 # packet/address families |
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65 enum : |
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66 PF_UNSPEC |
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67 PF_LOCAL |
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68 PF_UNIX # same as PF_LOCAL |
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69 PF_FILE # same as PF_LOCAL |
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70 PF_INET |
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71 PF_INET6 |
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72 PF_NETLINK |
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73 PF_ROUTE # same as PF_NETLINK |
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74 |
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75 |
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76 # aliases for PF_* |
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77 enum : |
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78 AF_UNSPEC |
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79 AF_LOCAL |
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80 AF_UNIX |
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81 AF_FILE |
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82 AF_INET |
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83 AF_INET6 |
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84 AF_NETLINK |
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85 AF_ROUTE |
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86 |
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87 # base sockaddr stuff |
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88 ctypedef uint16_t sa_family_t |
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89 |
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90 struct sockaddr : |
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91 sa_family_t sa_family |
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92 |
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93 struct sockaddr_storage : |
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94 sa_family_t ss_family |
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95 |
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96 # flag values |
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97 enum : |
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98 MSG_OOB |
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99 MSG_PEEK |
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100 MSG_DONTROUTE |
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101 MSG_CTRUNC |
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102 MSG_PROXY |
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103 MSG_TRUNC |
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104 MSG_DONTWAIT |
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105 MSG_EOR |
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106 MSG_WAITALL |
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107 MSG_FIN |
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108 MSG_SYN |
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109 MSG_CONFIRM |
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110 MSG_RST |
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111 MSG_ERRQUEUE |
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112 MSG_NOSIGNAL |
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113 MSG_MORE |
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114 MSG_CMSG_CLOEXEC |
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115 |
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116 ## send/recv-msg |
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117 struct msghdr : |
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118 void *msg_name # sockaddr |
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119 socklen_t msg_namelen |
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120 |
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121 iovec *msg_iov # message data |
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122 size_t msg_iovlen |
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123 |
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124 void *msg_control # aux data |
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125 size_t msg_controllen |
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126 |
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127 int msg_flags # flags |
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128 |
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129 struct cmsghdr : |
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130 size_t cmsg_len # length including this cmsghdr struct |
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131 |
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132 int cmsg_level # originating protocol (IPPROTO_* ???) |
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133 int cmsg_type # protocol-specific type |
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134 |
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135 ## socket-level cmsghdr types |
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136 enum : |
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137 SCM_RIGHTS |
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138 SCM_CREDENTIALS |
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139 |
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140 #- ucred |
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141 |
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142 # SO_LINGER parameters |
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143 struct linger : |
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144 int l_onoff |
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145 int l_linger |
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146 |
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147 |
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148 ## API |
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149 int socket (int domain, int socktype, int protocol) |
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150 int bind (int fd, sockaddr *addr, socklen_t len) |
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151 int connect (int fd, sockaddr *addr, socklen_t len) |
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152 int listen (int fd, int n) |
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153 int accept (int fd, sockaddr *addr, socklen_t *len) |
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154 int shutdown (int fd, int how) |
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155 |
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156 int getsockname (int fd, sockaddr *addr, socklen_t *len) |
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157 int getpeername (int fd, sockaddr *addr, socklen_t *len) |
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158 |
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159 ssize_t send (int fd, void *buf, size_t n, int flags) |
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160 ssize_t recv (int fd, void *buf, size_t n, int flags) |
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161 ssize_t sendto (int fd, void *buf, size_t n, int flags, sockaddr *addr, socklen_t addr_len) |
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162 ssize_t recvfrom (int fd, void *buf, size_t n, int flags, sockaddr *addr, socklen_t addr_len) |
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163 ssize_t sendmsg (int fd, msghdr *msg, int flags) |
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164 ssize_t recvmsg (int fd, msghdr *msg, int flags) |
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165 |
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166 int getsockopt (int fd, int level, int optname, void *optval, socklen_t optlen) |
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167 int setsockopt (int fd, int level, int optname, void *optval, socklen_t optlen) |
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168 |
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169 enum : |
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170 SHUT_RD |
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171 SHUT_WR |
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172 SHUT_RDWR |
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173 |
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174 cdef extern from "netinet/in.h" : |
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175 ## socket protocol types |
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176 enum : |
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177 IPPROTO_IP |
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178 IPPROTO_ICMP |
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179 IPPROTO_IGMP |
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180 IPPROTO_TCP |
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181 IPPROTO_UDP |
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182 IPPROTO_IPV6 |
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183 IPPROTO_ICMPV6 |
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184 IPPROTO_SCTP |
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185 IPPROTO_RAW |
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186 |
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187 |
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188 ## ports |
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189 ctypedef uint16_t in_port_t |
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190 |
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191 ## AF_INET |
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192 ctypedef uint32_t in_addr_t |
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193 struct in_addr : |
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194 in_addr_t s_addr |
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195 |
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196 # XXX: should these be in another cdef? |
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197 in_addr_t INADDR_ANY |
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198 |
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199 ## AF_INET6 |
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200 struct in6_addr : |
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201 # XXX: check POSIX... |
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202 uint8_t s6_addr[16] |
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203 uint16_t s6_addr16[8] |
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204 uint32_t s6_addr32[4] |
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205 |
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206 # common in6_addr's |
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207 in6_addr in6addr_any |
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208 in6_addr in6addr_loopback |
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209 |
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210 ## constants |
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211 enum : |
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212 INET_ADDRSTRLEN |
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213 INET6_ADDRSTRLEN |
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214 |
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215 ## sockaddrs |
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216 struct sockaddr_in : |
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217 sa_family_t sin_family |
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218 in_port_t sin_port |
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219 in_addr sin_addr |
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220 |
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221 struct sockaddr_in6 : |
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222 sa_family_t sin6_family |
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223 in_port_t sin6_port |
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224 uint32_t sin6_flowinfo |
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225 in6_addr sin6_addr |
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226 uint32_t sin6_scope_id |
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227 |
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228 uint16_t htons(uint16_t) |
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229 uint32_t htonl(uint32_t) |
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230 uint16_t ntohs(uint16_t) |
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231 uint32_t ntohl(uint32_t) |
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232 |
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233 cdef extern from "netdb.h" : |
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234 ## getaddrinfo |
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235 struct addrinfo : |
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236 int ai_flags |
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237 int ai_family |
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238 int ai_socktype |
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239 int ai_protocol |
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240 int ai_addrlen |
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241 sockaddr *ai_addr |
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242 char *ai_canonname |
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243 addrinfo *ai_next |
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244 |
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245 enum : |
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246 AI_PASSIVE |
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247 AI_CANONNAME |
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248 AI_NUMERICHOST |
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249 AI_V4MAPPED |
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250 AI_ALL |
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251 AI_ADDRCONFIG |
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252 # AI_*IDN* |
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253 AI_NUMERICSERV |
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254 |
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255 int c_getaddrinfo "getaddrinfo" ( |
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256 char *node, char *service, |
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257 addrinfo *hints, addrinfo **res |
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258 ) |
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259 |
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260 void c_freeaddrinfo "freeaddrinfo" (addrinfo *res) |
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261 |
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262 ## getnameinfo |
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263 int c_getnameinfo "getnameinfo" ( |
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264 sockaddr *sa, socklen_t salen, |
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265 char *host, size_t hostlen, |
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266 char *serv, size_t servlen, |
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267 int flags |
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268 ) |
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269 |
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270 enum : |
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271 NI_NOFQDN |
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272 NI_NUMERICHOST |
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273 NI_NAMEREQD |
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274 NI_NUMERICSERV |
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275 NI_DGRAM |
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276 |
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277 NI_MAXHOST |
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278 NI_MAXSERV |
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279 |
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280 char* gai_strerror (int err) |
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281 |
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282 # python-friendly wrapper around inet_ntop |
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283 cdef object inet_ntop (int af, void *sockaddr) |
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284 cdef object inet_pton (int af, char *addr, void *sockaddr_out) |
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285 |
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286 # sockaddr, flags -> (host, service) |
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287 cdef object getnameinfo (sockaddr *sa, socklen_t salen, int flags) |
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288 |
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289 ## general errno-based errors |
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290 #cdef class Errno (py.OSError) : |
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291 # """ |
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292 # Some libc function returned an error code: |
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293 # |
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294 # func - the name of the function called |
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295 # err - the system error code |
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296 # strerror - human-readable error code -> message |
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297 # """ |
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298 # |
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299 # cdef readonly char *func |
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300 # cdef readonly int err |
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301 # cdef readonly object strerror |
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302 # |
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303 #cdef class GAIError (py.OSError) : |
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304 # """ |
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305 # Some libc GAI function returnd an error code: |
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306 # |
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307 # func - the name of the function called |
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308 # err - the GAI_* error code |
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309 # strerror - human-readable error code -> message |
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310 # """ |
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311 # |
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312 # cdef readonly char *func |
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313 # cdef readonly int err |
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314 # cdef readonly object strerror |
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315 # |
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