runtime/basis/Net/Socket/UnixSock.c

   1 #include "platform.h"
   2
   3 #define UNIXSOCK_PATH_MAX (sizeof(struct sockaddr_un) - offsetof(struct sockaddr_un, sun_path))
   4
   5 void Socket_UnixSock_toAddr (NullString8_t path, C_Size_t pathlen, Array(Word8_t) addr, Ref(C_Socklen_t) addrlen) {
   6   size_t i;
   7   struct sockaddr_un *sa = (struct sockaddr_un*)addr;
   8
   9   sa->sun_family = AF_UNIX;
  10   if (pathlen <= UNIXSOCK_PATH_MAX) {
  11     for (i = 0; i < pathlen; i++) {
  12       sa->sun_path[i] = ((const char*)path)[i];
  13     }
  14   } else {
  15     for (i = 0; i < UNIXSOCK_PATH_MAX-1; i++) {
  16       sa->sun_path[i] = ((const char*)path)[i];
  17     }
  18     sa->sun_path[UNIXSOCK_PATH_MAX-1] = '\000';
  19   }
  20   *((socklen_t*)addrlen) = sizeof(struct sockaddr_un);
  21 }
  22
  23 C_Size_t Socket_UnixSock_pathLen (Vector(Word8_t) addr) {
  24   size_t i;
  25   const struct sockaddr_un *sa = (const struct sockaddr_un*)addr;
  26
  27   i = 0;
  28   if (sa->sun_path[i] == '\000') {
  29     return UNIXSOCK_PATH_MAX;
  30   } else {
  31     while (i < UNIXSOCK_PATH_MAX && sa->sun_path[i] != '\000') i++;
  32     return i;
  33   }
  34 }
  35
  36 void Socket_UnixSock_fromAddr (Vector(Word8_t) addr, Array(Char8_t) path, C_Size_t pathlen) {
  37   size_t i;
  38   const struct sockaddr_un *sa = (const struct sockaddr_un*)addr;
  39
  40   assert (sa->sun_family == AF_UNIX);
  41   for (i = 0; i < pathlen; i++) {
  42     ((char*)path)[i] = sa->sun_path[i];
  43   }
  44 }
  45
  46 #undef UNIXSOCK_PATH_MAX