sys/src/ape/lib/bsd/gai_strerror.c

   1 /* posix */
   2 #include <sys/types.h>
   3 #include <unistd.h>
   4
   5 /* bsd extensions */
   6 #include <sys/uio.h>
   7 #include <sys/socket.h>
   8 #include <netinet/in.h>
   9 #include <netdb.h>
  10
  11 char*
  12 gai_strerror(int err)
  13 {
  14         static char *tab[] = {
  15                 /* 0 */                 "No error",
  16                 /* EAI_BADFLAGS */      "Invalid value for `ai_flags' field",
  17                 /* EAI_NONAME */        "NAME or SERVICE is unknown",
  18                 /* EAI_AGAIN */         "Temporary failure in name resolution",
  19                 /* EAI_FAIL */          "Non-recoverable failure in name resolution",
  20                 /* EAI_NODATA */        "No address associated with NAME",
  21                 /* EAI_FAMILY */        "`ai_family' not supported",
  22                 /* EAI_SOCKTYPE */      "`ai_socktype' not supported",
  23                 /* EAI_SERVICE */       "SERVICE not supported for `ai_socktype'",
  24                 /* EAI_ADDRFAMILY */    "Address family for NAME not supported",
  25                 /* EAI_MEMORY */        "Memory allocation failure",
  26                 /* EAI_SYSTEM */        "System error returned in `errno'",
  27                 /* EAI_OVERFLOW */      "Argument buffer overflow",
  28         };
  29
  30         err = -err;
  31         if(err < 0 || err >= (sizeof(tab)/sizeof(tab[0])))
  32                 return "Unknown error";
  33         return tab[err];
  34 }