136 lines
2.6 KiB
Scheme
136 lines
2.6 KiB
Scheme
(load-shared-object "libc.so.6")
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(define (domain->int flag)
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(case flag
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((AF_INET) 2)
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))
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(define (type->int flag)
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(case flag
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((SOCK_DGRAM) 2)
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((SOCK_DCCP) 6)
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))
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(define (protocol->int flag)
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(case flag
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((IPPROTO_IP) 0)
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((IPPROTO_DCCP) 33)
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))
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(define (perror str)
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((foreign-procedure
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"perror"
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(string)
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void) str))
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(define (socket domain type protocol)
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((foreign-procedure
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"socket"
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(int int int)
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int)
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(domain->int domain)
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(type->int type)
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(protocol->int protocol)))
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(define-ftype
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[socklen_t unsigned-32]
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[in_addr_t unsigned-32]
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[in_addr
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(struct
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[addr in_addr_t])]
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[sa_family_t unsigned-short]
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[in_port_t unsigned-16]
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[sockaddr_common
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(struct
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[family sa_family_t])]
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[sockaddr
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(struct
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[common sockaddr_common]
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[data (array 14 char)])]
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[sockaddr_in
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(struct
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[common sockaddr_common]
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[port in_port_t]
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[addr in_addr]
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[zero (array 8 char)])])
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(define (level->int flag)
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(case flag
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((SOL_SOCKET) #x1)
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))
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(define (optname->int flag)
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(case flag
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((SO_REUSEADDR) #x2)
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))
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(define (inet_pton af src dst)
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((foreign-procedure
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"inet_pton"
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(int string void*)
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int)
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(domain->int af)
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src dst))
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(define (inet_ntop af src dst size)
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((foreign-procedure
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"inet_ntop"
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(int void* (* char) unsigned-32)
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string)
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(domain->int af)
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src dst size))
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(define (htons host)
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((foreign-procedure "htons" (unsigned-16) unsigned-16) host))
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(define (ntohs net)
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((foreign-procedure "ntohs" (unsigned-16) unsigned-16) net))
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(define (setsockopt sockfd level optname optval optlen)
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((foreign-procedure
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"setsockopt"
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(int int int void* int)
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int)
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sockfd
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(level->int level)
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(optname->int optname)
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optval optlen))
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(define (bind sockfd address address_len)
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((foreign-procedure
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"bind"
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(int void* int)
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int) sockfd address address_len))
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(define (listen sockfd backlog)
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((foreign-procedure
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"listen"
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(int int)
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int) sockfd backlog))
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(define (msgflag->int flag)
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(case flag
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((MSG_DEFAULT) 0)
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))
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(define (recvfrom sockfd buf len msgflag src-addr addrlen)
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((foreign-procedure
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"recvfrom"
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(int void* size_t int (* sockaddr_in) (* socklen_t))
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int)
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sockfd
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buf
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len
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(msgflag->int msgflag)
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src-addr
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addrlen))
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(define (sendto sockfd buf len msgflag dest-addr addrlen)
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((foreign-procedure
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"sendto"
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(int void* size_t int (* sockaddr_in) socklen_t)
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ssize_t)
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sockfd buf len
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(msgflag->int msgflag)
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dest-addr addrlen))
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