#include "perl.h"
#include "XSUB.h"
+#include <stddef.h>
+
#ifndef VMS
# ifdef I_SYS_TYPES
# include <sys/types.h>
# endif
-# include <sys/socket.h>
+# if !defined(ultrix) /* Avoid double definition. */
+# include <sys/socket.h>
+# endif
# if defined(USE_SOCKS) && defined(I_SOCKS)
# include <socks.h>
# endif
# if defined(NeXT) || defined(__NeXT__)
# include <netinet/in_systm.h>
# endif
-# ifdef I_NETINET_IN
+# if defined(__sgi) && !defined(AF_LINK) && defined(PF_LINK) && PF_LINK == AF_LNK
+# undef PF_LINK
+# endif
+# if defined(I_NETINET_IN) || defined(__ultrix__)
# include <netinet/in.h>
# endif
# ifdef I_NETDB
-# include <netdb.h>
+# if !defined(ultrix) /* Avoid double definition. */
+# include <netdb.h>
+# endif
# endif
# ifdef I_ARPA_INET
# include <arpa/inet.h>
unsigned int parts[4];
register unsigned int *pp = parts;
- if (!cp)
+ if (!cp || !*cp)
return 0;
for (;;) {
/*
static int
-not_here(char *s)
+not_here(const char *s)
{
croak("Socket::%s not implemented on this architecture", s);
return -1;
}
-#include "constants.c"
+#define PERL_IN_ADDR_S_ADDR_SIZE 4
+
+/*
+* Bad assumptions possible here.
+*
+* Bad Assumption 1: struct in_addr has no other fields
+* than the s_addr (which is the field we care about
+* in here, really). However, we can be fed either 4-byte
+* addresses (from pack("N", ...), or va.b.c.d, or ...),
+* or full struct in_addrs (from e.g. pack_sockaddr_in()),
+* which may or may not be 4 bytes in size.
+*
+* Bad Assumption 2: the s_addr field is a simple type
+* (such as an int, u_int32_t). It can be a bit field,
+* in which case using & (address-of) on it or taking sizeof()
+* wouldn't go over too well. (Those are not attempted
+* now but in case someone thinks to change the below code
+* to use addr.s_addr instead of addr, you have been warned.)
+*
+* Bad Assumption 3: the s_addr is the first field in
+* an in_addr, or that its bytes are the first bytes in
+* an in_addr.
+*
+* These bad assumptions are wrong in UNICOS which has
+* struct in_addr { struct { u_long st_addr:32; } s_da };
+* #define s_addr s_da.st_addr
+* and u_long is 64 bits.
+*
+* --jhi */
+
+#include "const-c.inc"
MODULE = Socket PACKAGE = Socket
-INCLUDE: constants.xs
+INCLUDE: const-xs.inc
void
inet_aton(host)
{
struct in_addr ip_address;
struct hostent * phe;
- int ok = inet_aton(host, &ip_address);
+ int ok = (*host != '\0') && inet_aton(host, &ip_address);
- if (!ok && (phe = gethostbyname(host))) {
+ if (!ok && (phe = gethostbyname(host)) &&
+ phe->h_addrtype == AF_INET && phe->h_length == 4) {
Copy( phe->h_addr, &ip_address, phe->h_length, char );
ok = 1;
}
ST(0) = sv_newmortal();
- if (ok) {
+ if (ok)
sv_setpvn( ST(0), (char *)&ip_address, sizeof ip_address );
}
- }
void
inet_ntoa(ip_address_sv)
{
STRLEN addrlen;
struct in_addr addr;
- char * addr_str;
char * ip_address;
if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
- croak("Wide character in Socket::inet_ntoa");
- ip_address = SvPV(ip_address_sv, addrlen);
- /*
- * Bad assumptions possible here.
- *
- * Bad Assumption 1: struct in_addr has no other fields
- * than the s_addr (which is the field we care about
- * in here, really). However, we can be fed either 4-byte
- * addresses (from pack("N", ...), or va.b.c.d, or ...),
- * or full struct in_addrs (from e.g. pack_sockaddr_in()),
- * which may or may not be 4 bytes in size.
- *
- * Bad Assumption 2: the s_addr field is a simple type
- * (such as an int, u_int32_t). It can be a bit field,
- * in which case using & (address-of) on it or taking sizeof()
- * wouldn't go over too well. (Those are not attempted
- * now but in case someone thinks to change the below code
- * to use addr.s_addr instead of addr, you have been warned.)
- *
- * Bad Assumption 3: the s_addr is the first field in
- * an in_addr, or that its bytes are the first bytes in
- * an in_addr.
- *
- * These bad assumptions are wrong in UNICOS which has
- * struct in_addr { struct { u_long st_addr:32; } s_da };
- * #define s_addr s_da.st_addr
- * and u_long is 64 bits.
- *
- * --jhi */
-#define PERL_IN_ADDR_S_ADDR_SIZE 4
- if (addrlen == PERL_IN_ADDR_S_ADDR_SIZE) {
- /* It must be (better be) a network-order 32-bit integer.
- * We can't use any fancy casting of ip_address to pointer ofn
- * some type (int or long) and the dereferencing that sincen
- * neither int not long is guaranteed to be 32 bits. */
- addr.s_addr = (ip_address[0] & 0xFF) << 24;
- addr.s_addr |= (ip_address[1] & 0xFF) << 16;
- addr.s_addr |= (ip_address[2] & 0xFF) << 8;
- addr.s_addr |= (ip_address[3] & 0xFF);
- }
- else {
- /* It could be a struct in_addr that is not 32 bits. */
-
- if (addrlen == sizeof(addr))
- /* This branch could be optimized away if we knew
- * during compile time what size is struct in_addr.
- * If it's four, the above code should have worked. */
- Copy( ip_address, &addr, sizeof addr, char );
- else {
- if (PERL_IN_ADDR_S_ADDR_SIZE == sizeof(addr))
- croak("Bad arg length for %s, length is %d, should be %d",
- "Socket::inet_ntoa",
- addrlen, PERL_IN_ADDR_S_ADDR_SIZE);
- else
- croak("Bad arg length for %s, length is %d, should be %d or %d",
- "Socket::inet_ntoa",
- addrlen, PERL_IN_ADDR_S_ADDR_SIZE, sizeof(addr));
- }
- }
+ croak("Wide character in %s", "Socket::inet_ntoa");
+ ip_address = SvPVbyte(ip_address_sv, addrlen);
+ if (addrlen == sizeof(addr) || addrlen == 4)
+ addr.s_addr =
+ (ip_address[0] & 0xFF) << 24 |
+ (ip_address[1] & 0xFF) << 16 |
+ (ip_address[2] & 0xFF) << 8 |
+ (ip_address[3] & 0xFF);
+ else
+ croak("Bad arg length for %s, length is %d, should be %d",
+ "Socket::inet_ntoa",
+ addrlen, sizeof(addr));
/* We could use inet_ntoa() but that is broken
* in HP-UX + GCC + 64bitint (returns "0.0.0.0"),
- * so let's use this sprintf() workaround everywhere. */
- New(1138, addr_str, 4 * 3 + 3 + 1, char);
- sprintf(addr_str, "%d.%d.%d.%d",
- ((addr.s_addr >> 24) & 0xFF),
- ((addr.s_addr >> 16) & 0xFF),
- ((addr.s_addr >> 8) & 0xFF),
- ( addr.s_addr & 0xFF));
- ST(0) = sv_2mortal(newSVpvn(addr_str, strlen(addr_str)));
- Safefree(addr_str);
+ * so let's use this sprintf() workaround everywhere.
+ * This is also more threadsafe than using inet_ntoa(). */
+ ST(0) = sv_2mortal(Perl_newSVpvf(aTHX_ "%d.%d.%d.%d", /* IPv6? */
+ ((addr.s_addr >> 24) & 0xFF),
+ ((addr.s_addr >> 16) & 0xFF),
+ ((addr.s_addr >> 8) & 0xFF),
+ ( addr.s_addr & 0xFF)));
}
void
+sockaddr_family(sockaddr)
+ SV * sockaddr
+ PREINIT:
+ STRLEN sockaddr_len;
+ char *sockaddr_pv = SvPVbyte(sockaddr, sockaddr_len);
+ CODE:
+ if (sockaddr_len < offsetof(struct sockaddr, sa_data)) {
+ croak("Bad arg length for %s, length is %d, should be at least %d",
+ "Socket::sockaddr_family", sockaddr_len,
+ offsetof(struct sockaddr, sa_data));
+ }
+ ST(0) = sv_2mortal(newSViv(((struct sockaddr*)sockaddr_pv)->sa_family));
+
+void
pack_sockaddr_un(pathname)
- char * pathname
+ SV * pathname
CODE:
{
#ifdef I_SYS_UN
struct sockaddr_un sun_ad; /* fear using sun */
STRLEN len;
+ char * pathname_pv;
+ int addr_len;
Zero( &sun_ad, sizeof sun_ad, char );
sun_ad.sun_family = AF_UNIX;
- len = strlen(pathname);
+ pathname_pv = SvPV(pathname,len);
if (len > sizeof(sun_ad.sun_path))
len = sizeof(sun_ad.sun_path);
# ifdef OS2 /* Name should start with \socket\ and contain backslashes! */
int off;
char *s, *e;
- if (pathname[0] != '/' && pathname[0] != '\\')
- croak("Relative UNIX domain socket name '%s' unsupported", pathname);
+ if (pathname_pv[0] != '/' && pathname_pv[0] != '\\')
+ croak("Relative UNIX domain socket name '%s' unsupported",
+ pathname_pv);
else if (len < 8
- || pathname[7] != '/' && pathname[7] != '\\'
- || !strnicmp(pathname + 1, "socket", 6))
+ || pathname_pv[7] != '/' && pathname_pv[7] != '\\'
+ || !strnicmp(pathname_pv + 1, "socket", 6))
off = 7;
else
off = 0; /* Preserve names starting with \socket\ */
Copy( "\\socket", sun_ad.sun_path, off, char);
- Copy( pathname, sun_ad.sun_path + off, len, char );
+ Copy( pathname_pv, sun_ad.sun_path + off, len, char );
s = sun_ad.sun_path + off - 1;
e = s + len + 1;
*s = '\\';
}
# else /* !( defined OS2 ) */
- Copy( pathname, sun_ad.sun_path, len, char );
+ Copy( pathname_pv, sun_ad.sun_path, len, char );
# endif
if (0) not_here("dummy");
- ST(0) = sv_2mortal(newSVpvn((char *)&sun_ad, sizeof sun_ad));
+ if (len > 1 && sun_ad.sun_path[0] == '\0') {
+ /* Linux-style abstract-namespace socket.
+ * The name is not a file name, but an array of arbitrary
+ * character, starting with \0 and possibly including \0s,
+ * therefore the length of the structure must denote the
+ * end of that character array */
+ addr_len = (char *)&(sun_ad.sun_path) - (char *)&sun_ad + len;
+ } else {
+ addr_len = sizeof sun_ad;
+ }
+ ST(0) = newSVpvn_flags((char *)&sun_ad, addr_len, SVs_TEMP);
#else
ST(0) = (SV *) not_here("pack_sockaddr_un");
#endif
#ifdef I_SYS_UN
struct sockaddr_un addr;
STRLEN sockaddrlen;
- char * sun_ad = SvPV(sun_sv,sockaddrlen);
- char * e;
+ char * sun_ad = SvPVbyte(sun_sv,sockaddrlen);
+ int addr_len;
# ifndef __linux__
/* On Linux sockaddrlen on sockets returned by accept, recvfrom,
getpeername and getsockname is not equal to sizeof(addr). */
addr.sun_family,
AF_UNIX);
}
- e = addr.sun_path;
- while (*e && e < addr.sun_path + sizeof addr.sun_path)
- ++e;
- ST(0) = sv_2mortal(newSVpvn(addr.sun_path, e - addr.sun_path));
+
+ if (addr.sun_path[0] == '\0') {
+ /* Linux-style abstract socket address begins with a nul
+ * and can contain nuls. */
+ addr_len = (char *)&addr - (char *)&(addr.sun_path) + sockaddrlen;
+ } else {
+ for (addr_len = 0; addr.sun_path[addr_len]
+ && addr_len < (int)sizeof(addr.sun_path); addr_len++);
+ }
+
+ ST(0) = newSVpvn_flags(addr.sun_path, addr_len, SVs_TEMP);
#else
ST(0) = (SV *) not_here("unpack_sockaddr_un");
#endif
}
void
-pack_sockaddr_in(port,ip_address)
+pack_sockaddr_in(port, ip_address_sv)
unsigned short port
- char * ip_address
+ SV * ip_address_sv
CODE:
{
struct sockaddr_in sin;
-
+ struct in_addr addr;
+ STRLEN addrlen;
+ char * ip_address;
+ if (DO_UTF8(ip_address_sv) && !sv_utf8_downgrade(ip_address_sv, 1))
+ croak("Wide character in %s", "Socket::pack_sockaddr_in");
+ ip_address = SvPVbyte(ip_address_sv, addrlen);
+ if (addrlen == sizeof(addr) || addrlen == 4)
+ addr.s_addr =
+ (ip_address[0] & 0xFF) << 24 |
+ (ip_address[1] & 0xFF) << 16 |
+ (ip_address[2] & 0xFF) << 8 |
+ (ip_address[3] & 0xFF);
+ else
+ croak("Bad arg length for %s, length is %d, should be %d",
+ "Socket::pack_sockaddr_in",
+ addrlen, sizeof(addr));
Zero( &sin, sizeof sin, char );
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
- Copy( ip_address, &sin.sin_addr, sizeof sin.sin_addr, char );
-
- ST(0) = sv_2mortal(newSVpvn((char *)&sin, sizeof sin));
+ sin.sin_addr.s_addr = htonl(addr.s_addr);
+ ST(0) = newSVpvn_flags((char *)&sin, sizeof (sin), SVs_TEMP);
}
void
STRLEN sockaddrlen;
struct sockaddr_in addr;
unsigned short port;
- struct in_addr ip_address;
- char * sin = SvPV(sin_sv,sockaddrlen);
+ struct in_addr ip_address;
+ char * sin = SvPVbyte(sin_sv,sockaddrlen);
if (sockaddrlen != sizeof(addr)) {
croak("Bad arg length for %s, length is %d, should be %d",
"Socket::unpack_sockaddr_in",
EXTEND(SP, 2);
PUSHs(sv_2mortal(newSViv((IV) port)));
- PUSHs(sv_2mortal(newSVpvn((char *)&ip_address,sizeof ip_address)));
+ PUSHs(newSVpvn_flags((char *)&ip_address, sizeof(ip_address), SVs_TEMP));
+ }
+
+void
+pack_sockaddr_in6(port, sin6_addr, scope_id=0, flowinfo=0)
+ unsigned short port
+ SV * sin6_addr
+ unsigned long scope_id
+ unsigned long flowinfo
+ CODE:
+ {
+#ifdef AF_INET6
+ struct sockaddr_in6 sin6;
+ char * addrbytes;
+ STRLEN addrlen;
+ if (DO_UTF8(sin6_addr) && !sv_utf8_downgrade(sin6_addr, 1))
+ croak("Wide character in %s", "Socket::pack_sockaddr_in6");
+ addrbytes = SvPVbyte(sin6_addr, addrlen);
+ if(addrlen != sizeof(sin6.sin6_addr))
+ croak("Bad arg length %s, length is %d, should be %d",
+ "Socket::pack_sockaddr_in6", addrlen, sizeof(sin6.sin6_addr));
+ Zero(&sin6, sizeof(sin6), char);
+ sin6.sin6_family = AF_INET6;
+ sin6.sin6_port = htons(port);
+ sin6.sin6_flowinfo = htonl(flowinfo);
+ Copy(addrbytes, &sin6.sin6_addr, sizeof(sin6.sin6_addr), char);
+ sin6.sin6_scope_id = scope_id;
+ ST(0) = newSVpvn_flags((char *)&sin6, sizeof(sin6), SVs_TEMP);
+#else
+ ST(0) = (SV*)not_here("pack_sockaddr_in6");
+#endif
}
+
+void
+unpack_sockaddr_in6(sin6_sv)
+ SV * sin6_sv
+ PPCODE:
+ {
+#ifdef AF_INET6
+ STRLEN addrlen;
+ struct sockaddr_in6 sin6;
+ char * addrbytes = SvPVbyte(sin6_sv, addrlen);
+ if (addrlen != sizeof(sin6))
+ croak("Bad arg length for %s, length is %d, should be %d",
+ "Socket::unpack_sockaddr_in6",
+ addrlen, sizeof(sin6));
+ Copy(addrbytes, &sin6, sizeof(sin6), char);
+ if(sin6.sin6_family != AF_INET6)
+ croak("Bad address family for %s, got %d, should be %d",
+ "Socket::unpack_sockaddr_in6",
+ sin6.sin6_family, AF_INET6);
+ EXTEND(SP, 4);
+ mPUSHi(ntohs(sin6.sin6_port));
+ mPUSHp((char *)&sin6.sin6_addr, sizeof(sin6.sin6_addr));
+ mPUSHi(sin6.sin6_scope_id);
+ mPUSHi(ntohl(sin6.sin6_flowinfo));
+#else
+ ST(0) = (SV*)not_here("pack_sockaddr_in6");
+#endif
+ }
+
+void
+inet_ntop(af, ip_address_sv)
+ int af
+ SV * ip_address_sv
+ CODE:
+#ifdef HAS_INETNTOP
+ STRLEN addrlen, struct_size;
+#ifdef AF_INET6
+ struct in6_addr addr;
+ char str[INET6_ADDRSTRLEN];
+#else
+ struct in_addr addr;
+ char str[INET_ADDRSTRLEN];
+#endif
+ char *ip_address = SvPV(ip_address_sv, addrlen);
+
+ struct_size = sizeof(addr);
+
+ if(af != AF_INET
+#ifdef AF_INET6
+ && af != AF_INET6
+#endif
+ ) {
+ croak("Bad address family for %s, got %d, should be"
+#ifdef AF_INET6
+ " either AF_INET or AF_INET6",
+#else
+ " AF_INET",
+#endif
+ "Socket::inet_ntop",
+ af);
+ }
+
+ Copy( ip_address, &addr, sizeof addr, char );
+ inet_ntop(af, &addr, str, sizeof str);
+
+ ST(0) = newSVpvn_flags(str, strlen(str), SVs_TEMP);
+#else
+ ST(0) = (SV *)not_here("inet_ntop");
+#endif
+
+void
+inet_pton(af, host)
+ int af
+ const char * host
+ CODE:
+#ifdef HAS_INETPTON
+ int ok;
+#ifdef AF_INET6
+ struct in6_addr ip_address;
+#else
+ struct in_addr ip_address;
+#endif
+
+ if(af != AF_INET
+#ifdef AF_INET6
+ && af != AF_INET6
+#endif
+ ) {
+ croak("Bad address family for %s, got %d, should be"
+#ifdef AF_INET6
+ " either AF_INET or AF_INET6",
+#else
+ " AF_INET",
+#endif
+ "Socket::inet_pton",
+ af);
+ }
+ ok = (*host != '\0') && inet_pton(af, host, &ip_address);
+
+ ST(0) = sv_newmortal();
+ if (ok) {
+ sv_setpvn( ST(0), (char *)&ip_address, sizeof(ip_address) );
+ }
+#else
+ ST(0) = (SV *)not_here("inet_pton");
+#endif
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