added partital socket address conversion routines to sck-addr.c

This commit is contained in:
hyunghwan.chung 2018-01-10 14:32:21 +00:00
parent 77942761f5
commit 4666b5efff
3 changed files with 460 additions and 17 deletions

View File

@ -378,9 +378,7 @@ class MyObject(Object)
method(#class) main
{
| s conact inact outact |
SocketAddress new dump.
(SocketAddress fromString: '192.168.123.232:99') dump.
'****************************' dump.
(*

View File

@ -736,7 +736,7 @@ int moo_convbtouchars (moo_t* moo, const moo_bch_t* bcs, moo_oow_t* bcslen, moo_
if (n <= -1)
{
/* -1: illegal character, -2: buffer too small, -3: incomplete sequence */
moo->errnum = (n == -2)? MOO_EBUFFULL: MOO_EECERR;
moo_seterrnum (moo, (n == -2)? MOO_EBUFFULL: MOO_EECERR);
}
return n;
@ -751,7 +751,7 @@ int moo_convutobchars (moo_t* moo, const moo_uch_t* ucs, moo_oow_t* ucslen, moo_
if (n <= -1)
{
moo->errnum = (n == -2)? MOO_EBUFFULL: MOO_EECERR;
moo_seterrnum (moo, (n == -2)? MOO_EBUFFULL: MOO_EECERR);
}
return n;
@ -766,7 +766,7 @@ int moo_convbtoucstr (moo_t* moo, const moo_bch_t* bcs, moo_oow_t* bcslen, moo_u
if (n <= -1)
{
moo->errnum = (n == -2)? MOO_EBUFFULL: MOO_EECERR;
moo_seterrnum (moo, (n == -2)? MOO_EBUFFULL: MOO_EECERR);
}
return n;
@ -781,7 +781,7 @@ int moo_convutobcstr (moo_t* moo, const moo_uch_t* ucs, moo_oow_t* ucslen, moo_b
if (n <= -1)
{
moo->errnum = (n == -2)? MOO_EBUFFULL: MOO_EECERR;
moo_seterrnum (moo, (n == -2)? MOO_EBUFFULL: MOO_EECERR);
}
return n;
@ -931,3 +931,74 @@ moo_bch_t* moo_dupbchars (moo_t* moo, const moo_bch_t* bcs, moo_oow_t bcslen)
return ptr;
}
/* ----------------------------------------------------------------------- */
#if defined(MOO_HAVE_UINT16_T)
moo_uint16_t moo_ntoh16 (moo_uint16_t x)
{
#if defined(MOO_ENDIAN_BIG)
return x;
#elif defined(MOO_ENDIAN_LITTLE)
moo_uint8_t* c = (moo_uint8_t*)&x;
return (moo_uint16_t)(
((moo_uint16_t)c[0] << 8) |
((moo_uint16_t)c[1] << 0));
#else
# error Unknown endian
#endif
}
moo_uint16_t moo_hton16 (moo_uint16_t x)
{
#if defined(MOO_ENDIAN_BIG)
return x;
#elif defined(MOO_ENDIAN_LITTLE)
moo_uint8_t* c = (moo_uint8_t*)&x;
return (moo_uint16_t)(
((moo_uint16_t)c[0] << 8) |
((moo_uint16_t)c[1] << 0));
#else
# error Unknown endian
#endif
}
#endif
/* --------------------------------------------------------------- */
#if defined(MOO_HAVE_UINT32_T)
moo_uint32_t moo_ntoh32 (moo_uint32_t x)
{
#if defined(MOO_ENDIAN_BIG)
return x;
#elif defined(MOO_ENDIAN_LITTLE)
moo_uint8_t* c = (moo_uint8_t*)&x;
return (moo_uint32_t)(
((moo_uint32_t)c[0] << 24) |
((moo_uint32_t)c[1] << 16) |
((moo_uint32_t)c[2] << 8) |
((moo_uint32_t)c[3] << 0));
#else
# error Unknown endian
#endif
}
moo_uint32_t moo_hton32 (moo_uint32_t x)
{
#if defined(MOO_ENDIAN_BIG)
return x;
#elif defined(MOO_ENDIAN_LITTLE)
moo_uint8_t* c = (moo_uint8_t*)&x;
return (moo_uint32_t)(
((moo_uint32_t)c[0] << 24) |
((moo_uint32_t)c[1] << 16) |
((moo_uint32_t)c[2] << 8) |
((moo_uint32_t)c[3] << 0));
#else
# error Unknown endian
#endif
}
#endif

View File

@ -100,20 +100,396 @@ union sockaddr_t
};
typedef union sockaddr_t sockaddr_t;
static int str_to_ipv4 (const moo_ooch_t* str, moo_oow_t len, struct in_addr* inaddr)
{
const moo_ooch_t* end;
int dots = 0, digits = 0;
moo_uint32_t acc = 0, addr = 0;
moo_ooch_t c;
end = str + len;
do
{
if (str >= end)
{
if (dots < 3 || digits == 0) return -1;
addr = (addr << 8) | acc;
break;
}
c = *str++;
if (c >= '0' && c <= '9')
{
if (digits > 0 && acc == 0) return -1;
acc = acc * 10 + (c - '0');
if (acc > 255) return -1;
digits++;
}
else if (c == '.')
{
if (dots >= 3 || digits == 0) return -1;
addr = (addr << 8) | acc;
dots++; acc = 0; digits = 0;
}
else return -1;
}
while (1);
inaddr->s_addr = moo_hton32(addr);
return 0;
}
static int str_to_ipv6 (const moo_ooch_t* src, moo_oow_t len, struct in6_addr* inaddr)
{
moo_uint8_t* tp, * endp, * colonp;
const moo_ooch_t* curtok;
moo_ooch_t ch;
int saw_xdigit;
unsigned int val;
const moo_ooch_t* src_end;
src_end = src + len;
MOO_MEMSET (inaddr, 0, MOO_SIZEOF(*inaddr));
tp = &inaddr->s6_addr[0];
endp = &inaddr->s6_addr[MOO_COUNTOF(inaddr->s6_addr)];
colonp = MOO_NULL;
/* Leading :: requires some special handling. */
if (src < src_end && *src == ':')
{
src++;
if (src >= src_end || *src != ':') return -1;
}
curtok = src;
saw_xdigit = 0;
val = 0;
while (src < src_end)
{
int v1;
ch = *src++;
if (ch >= '0' && ch <= '9')
v1 = ch - '0';
else if (ch >= 'A' && ch <= 'F')
v1 = ch - 'A' + 10;
else if (ch >= 'a' && ch <= 'f')
v1 = ch - 'a' + 10;
else v1 = -1;
if (v1 >= 0)
{
val <<= 4;
val |= v1;
if (val > 0xffff) return -1;
saw_xdigit = 1;
continue;
}
if (ch == ':')
{
curtok = src;
if (!saw_xdigit)
{
if (colonp) return -1;
colonp = tp;
continue;
}
else if (src >= src_end)
{
/* a colon can't be the last character */
return -1;
}
*tp++ = (moo_uint8_t)(val >> 8) & 0xff;
*tp++ = (moo_uint8_t)val & 0xff;
saw_xdigit = 0;
val = 0;
continue;
}
if (ch == '.' && ((tp + MOO_SIZEOF(struct in_addr)) <= endp) &&
str_to_ipv4(curtok, src_end - curtok, (struct in_addr*)tp) == 0)
{
tp += MOO_SIZEOF(struct in_addr*);
saw_xdigit = 0;
break;
}
return -1;
}
if (saw_xdigit)
{
if (tp + MOO_SIZEOF(moo_uint16_t) > endp) return -1;
*tp++ = (moo_uint8_t)(val >> 8) & 0xff;
*tp++ = (moo_uint8_t)val & 0xff;
}
if (colonp != MOO_NULL)
{
/*
* Since some memmove()'s erroneously fail to handle
* overlapping regions, we'll do the shift by hand.
*/
moo_oow_t n = tp - colonp;
moo_oow_t i;
for (i = 1; i <= n; i++)
{
endp[-i] = colonp[n - i];
colonp[n - i] = 0;
}
tp = endp;
}
if (tp != endp) return -1;
return 0;
}
static int str_to_sockaddr (moo_t* moo, const moo_ooch_t* str, moo_oow_t len, sockaddr_t* nwad)
{
const moo_ooch_t* p;
const moo_ooch_t* end;
moo_oocs_t tmp;
p = str;
end = str + len;
if (p >= end)
{
moo_seterrbfmt (moo, MOO_EINVAL, "blank address");
return -1;
}
MOO_MEMSET (nwad, 0, MOO_SIZEOF(*nwad));
#if defined(AF_UNIX)
if (*p == '/' && len >= 2)
{
#if defined(MOO_OOCH_IS_BCH)
moo_copybcstr (nwad->un.sun_path, MOO_COUNTOF(nwad->un.sun_path), str);
#else
moo_oow_t dstlen;
dstlen = MOO_COUNTOF(nwad->un.sun_path) - 1;
if (moo_convutobchars (moo, p, &len, nwad->un.sun_path, &dstlen) <= -1)
{
moo_seterrbfmt (moo, MOO_EINVAL, "unable to convert encoding");
return -1;
}
nwad->un.sun_path[dstlen] = '\0';
#endif
nwad->un.sun_family = AF_UNIX;
return 0;
}
#endif
if (*p == '[')
{
/* IPv6 address */
tmp.ptr = (moo_ooch_t*)++p; /* skip [ and remember the position */
while (p < end && *p != '%' && *p != ']') p++;
if (p >= end) goto norbrack;
tmp.len = p - tmp.ptr;
if (*p == '%')
{
/* handle scope id */
moo_uint32_t x;
p++; /* skip % */
if (p >= end)
{
/* premature end */
moo_seterrbfmt (moo, MOO_EINVAL, "scope id blank");
return -1;
}
if (*p >= '0' && *p <= '9')
{
/* numeric scope id */
nwad->in6.sin6_scope_id = 0;
do
{
x = nwad->in6.sin6_scope_id * 10 + (*p - '0');
if (x < nwad->in6.sin6_scope_id)
{
moo_seterrbfmt (moo, MOO_EINVAL, "scope id too large");
return -1; /* overflow */
}
nwad->in6.sin6_scope_id = x;
p++;
}
while (p < end && *p >= '0' && *p <= '9');
}
else
{
#if 0
TODO:
/* interface name as a scope id? */
const moo_ooch_t* stmp = p;
unsigned int index;
do p++; while (p < end && *p != ']');
if (moo_nwifwcsntoindex (stmp, p - stmp, &index) <= -1) return -1;
tmpad.u.in6.scope = index;
#endif
}
if (p >= end || *p != ']') goto norbrack;
}
p++; /* skip ] */
if (str_to_ipv6(tmp.ptr, tmp.len, &nwad->in6.sin6_addr) <= -1) goto unrecog;
nwad->in6.sin6_family = AF_INET6;
}
else
{
/* IPv4 address */
tmp.ptr = (moo_ooch_t*)p;
while (p < end && *p != ':') p++;
tmp.len = p - tmp.ptr;
if (str_to_ipv4(tmp.ptr, tmp.len, &nwad->in4.sin_addr) <= -1)
{
/* check if it is an IPv6 address not enclosed in [].
* the port number can't be specified in this format. */
if (p >= end || *p != ':')
{
/* without :, it can't be an ipv6 address */
goto unrecog;
}
while (p < end && *p != '%') p++;
tmp.len = p - tmp.ptr;
if (str_to_ipv6(tmp.ptr, tmp.len, &nwad->in6.sin6_addr) <= -1) goto unrecog;
if (p < end && *p == '%')
{
/* handle scope id */
moo_uint32_t x;
p++; /* skip % */
if (p >= end)
{
/* premature end */
moo_seterrbfmt (moo, MOO_EINVAL, "scope id blank");
return -1;
}
if (*p >= '0' && *p <= '9')
{
/* numeric scope id */
nwad->in6.sin6_scope_id = 0;
do
{
x = nwad->in6.sin6_scope_id * 10 + (*p - '0');
if (x < nwad->in6.sin6_scope_id)
{
moo_seterrbfmt (moo, MOO_EINVAL, "scope id too large");
return -1; /* overflow */
}
nwad->in6.sin6_scope_id= x;
p++;
}
while (p < end && *p >= '0' && *p <= '9');
}
else
{
#if 0
TODO
/* interface name as a scope id? */
const moo_ooch_t* stmp = p;
unsigned int index;
do p++; while (p < end);
if (moo_nwifwcsntoindex (stmp, p - stmp, &index) <= -1) return -1;
nwad->in6.sin6_scope_id = index;
#endif
}
}
if (p < end) goto unrecog; /* some gargage after the end? */
nwad->in6.sin6_family = AF_INET6;
return 0;
}
nwad->in4.sin_family = AF_INET;
}
if (p < end && *p == ':')
{
/* port number */
moo_uint32_t port = 0;
p++; /* skip : */
tmp.ptr = (moo_ooch_t*)p;
while (p < end && *p >= '0' && *p <= '9')
{
port = port * 10 + (*p - '0');
p++;
}
tmp.len = p - tmp.ptr;
if (tmp.len <= 0 || tmp.len >= 6 ||
port > MOO_TYPE_MAX(moo_uint16_t))
{
moo_seterrbfmt (moo, MOO_EINVAL, "port number blank or too large");
return -1;
}
if (nwad->in4.sin_family == AF_INET)
nwad->in4.sin_port = moo_hton16(port);
else
nwad->in6.sin6_port = moo_hton16(port);
}
return 0;
unrecog:
moo_seterrbfmt (moo, MOO_EINVAL, "unrecognized address");
return -1;
norbrack:
moo_seterrbfmt (moo, MOO_EINVAL, "missing right bracket");
return -1;
}
static moo_pfrc_t pf_from_string (moo_t* moo, moo_ooi_t nargs)
{
moo_oop_t rcv;
sck_addr_trailer_t* tr;
moo_oop_t str;
rcv = (moo_oop_t)MOO_STACK_GETRCV(moo, nargs);
str = (moo_oop_t)MOO_STACK_GETARG(moo, nargs, 0);
tr = moo_getobjtrailer (moo, MOO_STACK_GETRCV(moo,nargs), MOO_NULL);
//if (tr->event)
MOO_PF_CHECK_RCV (moo, MOO_OBJ_IS_BYTE_POINTER(rcv) && MOO_OBJ_GET_SIZE(rcv) >= MOO_SIZEOF(sockaddr_t));
MOO_PF_CHECK_ARGS (moo, nargs, MOO_OBJ_IS_CHAR_POINTER(str));
if (str_to_sockaddr (moo, MOO_OBJ_GET_CHAR_SLOT(str), MOO_OBJ_GET_SIZE(str), (sockaddr_t*)MOO_OBJ_GET_BYTE_SLOT(rcv)) <= -1)
{
return MOO_PF_FAILURE;
}
MOO_STACK_SETRETTORCV (moo, nargs);
return MOO_PF_SUCCESS;
}
static moo_pfinfo_t pfinfos[] =
{
{ I, { 'f','r','o','m','S','t','r','i','n','g',':','\0' }, 0, { pf_from_string, 1, 1 } },
@ -121,8 +497,6 @@ static moo_pfinfo_t pfinfos[] =
/* ------------------------------------------------------------------------ */
static int import (moo_t* moo, moo_mod_t* mod, moo_oop_class_t _class)
{
moo_ooi_t spec;
@ -135,9 +509,9 @@ static int import (moo_t* moo, moo_mod_t* mod, moo_oop_class_t _class)
return -1;
}
/* change the number of the fixed fields forcibly */
/* TODO: check if the super class has what kind of size ... */
/* change the number of the fixed fields forcibly.
/* the check against the superclass is done by the main compiler
* after this import. so i perform no check about the superclass. */
spec = MOO_CLASS_SPEC_MAKE (MOO_SIZEOF(sockaddr_t), MOO_CLASS_SPEC_FLAGS(spec), MOO_CLASS_SPEC_INDEXED_TYPE(spec));
_class->spec = MOO_SMOOI_TO_OOP(spec);
return 0;