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Diffstat (limited to 'ruby_1_8_5/pack.c')
-rw-r--r--ruby_1_8_5/pack.c2119
1 files changed, 0 insertions, 2119 deletions
diff --git a/ruby_1_8_5/pack.c b/ruby_1_8_5/pack.c
deleted file mode 100644
index 861fb6a089..0000000000
--- a/ruby_1_8_5/pack.c
+++ /dev/null
@@ -1,2119 +0,0 @@
-/**********************************************************************
-
- pack.c -
-
- $Author: nobu $
- $Date: 2006/08/04 04:58:25 $
- created at: Thu Feb 10 15:17:05 JST 1994
-
- Copyright (C) 1993-2003 Yukihiro Matsumoto
-
-**********************************************************************/
-
-#include "ruby.h"
-#include <sys/types.h>
-#include <ctype.h>
-
-#define SIZE16 2
-#define SIZE32 4
-
-#if SIZEOF_SHORT != 2 || SIZEOF_LONG != 4
-# define NATINT_PACK
-#endif
-
-#ifdef NATINT_PACK
-# define OFF16B(p) ((char*)(p) + (natint?0:(sizeof(short) - SIZE16)))
-# define OFF32B(p) ((char*)(p) + (natint?0:(sizeof(long) - SIZE32)))
-# define NATINT_LEN(type,len) (natint?sizeof(type):(len))
-# ifdef WORDS_BIGENDIAN
-# define OFF16(p) OFF16B(p)
-# define OFF32(p) OFF32B(p)
-# endif
-# define NATINT_HTOVS(x) (natint?htovs(x):htov16(x))
-# define NATINT_HTOVL(x) (natint?htovl(x):htov32(x))
-# define NATINT_HTONS(x) (natint?htons(x):hton16(x))
-# define NATINT_HTONL(x) (natint?htonl(x):hton32(x))
-#else
-# define NATINT_LEN(type,len) sizeof(type)
-# define NATINT_HTOVS(x) htovs(x)
-# define NATINT_HTOVL(x) htovl(x)
-# define NATINT_HTONS(x) htons(x)
-# define NATINT_HTONL(x) htonl(x)
-#endif
-
-#ifndef OFF16
-# define OFF16(p) (char*)(p)
-# define OFF32(p) (char*)(p)
-#endif
-#ifndef OFF16B
-# define OFF16B(p) (char*)(p)
-# define OFF32B(p) (char*)(p)
-#endif
-
-#define define_swapx(x, xtype) \
-static xtype \
-TOKEN_PASTE(swap,x)(z) \
- xtype z; \
-{ \
- xtype r; \
- xtype *zp; \
- unsigned char *s, *t; \
- int i; \
- \
- zp = xmalloc(sizeof(xtype)); \
- *zp = z; \
- s = (unsigned char*)zp; \
- t = xmalloc(sizeof(xtype)); \
- for (i=0; i<sizeof(xtype); i++) { \
- t[sizeof(xtype)-i-1] = s[i]; \
- } \
- r = *(xtype *)t; \
- free(t); \
- free(zp); \
- return r; \
-}
-
-#ifndef swap16
-#define swap16(x) ((((x)&0xFF)<<8) | (((x)>>8)&0xFF))
-#endif
-#if SIZEOF_SHORT == 2
-#define swaps(x) swap16(x)
-#else
-#if SIZEOF_SHORT == 4
-#define swaps(x) ((((x)&0xFF)<<24) \
- |(((x)>>24)&0xFF) \
- |(((x)&0x0000FF00)<<8) \
- |(((x)&0x00FF0000)>>8) )
-#else
-define_swapx(s,short)
-#endif
-#endif
-
-#ifndef swap32
-#define swap32(x) ((((x)&0xFF)<<24) \
- |(((x)>>24)&0xFF) \
- |(((x)&0x0000FF00)<<8) \
- |(((x)&0x00FF0000)>>8) )
-#endif
-#if SIZEOF_LONG == 4
-#define swapl(x) swap32(x)
-#else
-#if SIZEOF_LONG == 8
-#define swapl(x) ((((x)&0x00000000000000FF)<<56) \
- |(((x)&0xFF00000000000000)>>56) \
- |(((x)&0x000000000000FF00)<<40) \
- |(((x)&0x00FF000000000000)>>40) \
- |(((x)&0x0000000000FF0000)<<24) \
- |(((x)&0x0000FF0000000000)>>24) \
- |(((x)&0x00000000FF000000)<<8) \
- |(((x)&0x000000FF00000000)>>8))
-#else
-define_swapx(l,long)
-#endif
-#endif
-
-#if SIZEOF_FLOAT == 4
-#if SIZEOF_LONG == 4 /* SIZEOF_FLOAT == 4 == SIZEOF_LONG */
-#define swapf(x) swapl(x)
-#define FLOAT_SWAPPER unsigned long
-#else
-#if SIZEOF_SHORT == 4 /* SIZEOF_FLOAT == 4 == SIZEOF_SHORT */
-#define swapf(x) swaps(x)
-#define FLOAT_SWAPPER unsigned short
-#else /* SIZEOF_FLOAT == 4 but undivide by known size of int */
-define_swapx(f,float)
-#endif /* #if SIZEOF_SHORT == 4 */
-#endif /* #if SIZEOF_LONG == 4 */
-#else /* SIZEOF_FLOAT != 4 */
-define_swapx(f,float)
-#endif /* #if SIZEOF_FLOAT == 4 */
-
-#if SIZEOF_DOUBLE == 8
-#if SIZEOF_LONG == 8 /* SIZEOF_DOUBLE == 8 == SIZEOF_LONG */
-#define swapd(x) swapl(x)
-#define DOUBLE_SWAPPER unsigned long
-#else
-#if SIZEOF_LONG == 4 /* SIZEOF_DOUBLE == 8 && 4 == SIZEOF_LONG */
-static double
-swapd(d)
- const double d;
-{
- double dtmp = d;
- unsigned long utmp[2];
- unsigned long utmp0;
-
- utmp[0] = 0; utmp[1] = 0;
- memcpy(utmp,&dtmp,sizeof(double));
- utmp0 = utmp[0];
- utmp[0] = swapl(utmp[1]);
- utmp[1] = swapl(utmp0);
- memcpy(&dtmp,utmp,sizeof(double));
- return dtmp;
-}
-#else
-#if SIZEOF_SHORT == 4 /* SIZEOF_DOUBLE == 8 && 4 == SIZEOF_SHORT */
-static double
-swapd(d)
- const double d;
-{
- double dtmp = d;
- unsigned short utmp[2];
- unsigned short utmp0;
-
- utmp[0] = 0; utmp[1] = 0;
- memcpy(utmp,&dtmp,sizeof(double));
- utmp0 = utmp[0];
- utmp[0] = swaps(utmp[1]);
- utmp[1] = swaps(utmp0);
- memcpy(&dtmp,utmp,sizeof(double));
- return dtmp;
-}
-#else /* SIZEOF_DOUBLE == 8 but undivied by known size of int */
-define_swapx(d, double)
-#endif /* #if SIZEOF_SHORT == 4 */
-#endif /* #if SIZEOF_LONG == 4 */
-#endif /* #if SIZEOF_LONG == 8 */
-#else /* SIZEOF_DOUBLE != 8 */
-define_swapx(d, double)
-#endif /* #if SIZEOF_DOUBLE == 8 */
-
-#undef define_swapx
-
-#ifdef DYNAMIC_ENDIAN
-#ifdef ntohs
-#undef ntohs
-#undef ntohl
-#undef htons
-#undef htonl
-#endif
-static int
-endian()
-{
- static int init = 0;
- static int endian_value;
- char *p;
-
- if (init) return endian_value;
- init = 1;
- p = (char*)&init;
- return endian_value = p[0]?0:1;
-}
-
-#define ntohs(x) (endian()?(x):swaps(x))
-#define ntohl(x) (endian()?(x):swapl(x))
-#define ntohf(x) (endian()?(x):swapf(x))
-#define ntohd(x) (endian()?(x):swapd(x))
-#define htons(x) (endian()?(x):swaps(x))
-#define htonl(x) (endian()?(x):swapl(x))
-#define htonf(x) (endian()?(x):swapf(x))
-#define htond(x) (endian()?(x):swapd(x))
-#define htovs(x) (endian()?swaps(x):(x))
-#define htovl(x) (endian()?swapl(x):(x))
-#define htovf(x) (endian()?swapf(x):(x))
-#define htovd(x) (endian()?swapd(x):(x))
-#define vtohs(x) (endian()?swaps(x):(x))
-#define vtohl(x) (endian()?swapl(x):(x))
-#define vtohf(x) (endian()?swapf(x):(x))
-#define vtohd(x) (endian()?swapd(x):(x))
-# ifdef NATINT_PACK
-#define htov16(x) (endian()?swap16(x):(x))
-#define htov32(x) (endian()?swap32(x):(x))
-#define hton16(x) (endian()?(x):swap16(x))
-#define hton32(x) (endian()?(x):swap32(x))
-# endif
-#else
-#ifdef WORDS_BIGENDIAN
-#ifndef ntohs
-#define ntohs(x) (x)
-#define ntohl(x) (x)
-#define htons(x) (x)
-#define htonl(x) (x)
-#endif
-#define ntohf(x) (x)
-#define ntohd(x) (x)
-#define htonf(x) (x)
-#define htond(x) (x)
-#define htovs(x) swaps(x)
-#define htovl(x) swapl(x)
-#define htovf(x) swapf(x)
-#define htovd(x) swapd(x)
-#define vtohs(x) swaps(x)
-#define vtohl(x) swapl(x)
-#define vtohf(x) swapf(x)
-#define vtohd(x) swapd(x)
-# ifdef NATINT_PACK
-#define htov16(x) swap16(x)
-#define htov32(x) swap32(x)
-#define hton16(x) (x)
-#define hton32(x) (x)
-# endif
-#else /* LITTLE ENDIAN */
-#ifdef ntohs
-#undef ntohs
-#undef ntohl
-#undef htons
-#undef htonl
-#endif
-#define ntohs(x) swaps(x)
-#define ntohl(x) swapl(x)
-#define htons(x) swaps(x)
-#define htonl(x) swapl(x)
-#define ntohf(x) swapf(x)
-#define ntohd(x) swapd(x)
-#define htonf(x) swapf(x)
-#define htond(x) swapd(x)
-#define htovs(x) (x)
-#define htovl(x) (x)
-#define htovf(x) (x)
-#define htovd(x) (x)
-#define vtohs(x) (x)
-#define vtohl(x) (x)
-#define vtohf(x) (x)
-#define vtohd(x) (x)
-# ifdef NATINT_PACK
-#define htov16(x) (x)
-#define htov32(x) (x)
-#define hton16(x) swap16(x)
-#define hton32(x) swap32(x)
-# endif
-#endif
-#endif
-
-#ifdef FLOAT_SWAPPER
-#define FLOAT_CONVWITH(y) FLOAT_SWAPPER y;
-#define HTONF(x,y) (memcpy(&y,&x,sizeof(float)), \
- y = htonf((FLOAT_SWAPPER)y), \
- memcpy(&x,&y,sizeof(float)), \
- x)
-#define HTOVF(x,y) (memcpy(&y,&x,sizeof(float)), \
- y = htovf((FLOAT_SWAPPER)y), \
- memcpy(&x,&y,sizeof(float)), \
- x)
-#define NTOHF(x,y) (memcpy(&y,&x,sizeof(float)), \
- y = ntohf((FLOAT_SWAPPER)y), \
- memcpy(&x,&y,sizeof(float)), \
- x)
-#define VTOHF(x,y) (memcpy(&y,&x,sizeof(float)), \
- y = vtohf((FLOAT_SWAPPER)y), \
- memcpy(&x,&y,sizeof(float)), \
- x)
-#else
-#define FLOAT_CONVWITH(y)
-#define HTONF(x,y) htonf(x)
-#define HTOVF(x,y) htovf(x)
-#define NTOHF(x,y) ntohf(x)
-#define VTOHF(x,y) vtohf(x)
-#endif
-
-#ifdef DOUBLE_SWAPPER
-#define DOUBLE_CONVWITH(y) DOUBLE_SWAPPER y;
-#define HTOND(x,y) (memcpy(&y,&x,sizeof(double)), \
- y = htond((DOUBLE_SWAPPER)y), \
- memcpy(&x,&y,sizeof(double)), \
- x)
-#define HTOVD(x,y) (memcpy(&y,&x,sizeof(double)), \
- y = htovd((DOUBLE_SWAPPER)y), \
- memcpy(&x,&y,sizeof(double)), \
- x)
-#define NTOHD(x,y) (memcpy(&y,&x,sizeof(double)), \
- y = ntohd((DOUBLE_SWAPPER)y), \
- memcpy(&x,&y,sizeof(double)), \
- x)
-#define VTOHD(x,y) (memcpy(&y,&x,sizeof(double)), \
- y = vtohd((DOUBLE_SWAPPER)y), \
- memcpy(&x,&y,sizeof(double)), \
- x)
-#else
-#define DOUBLE_CONVWITH(y)
-#define HTOND(x,y) htond(x)
-#define HTOVD(x,y) htovd(x)
-#define NTOHD(x,y) ntohd(x)
-#define VTOHD(x,y) vtohd(x)
-#endif
-
-unsigned long rb_big2ulong_pack _((VALUE x));
-
-static unsigned long
-num2i32(x)
- VALUE x;
-{
- x = rb_to_int(x); /* is nil OK? (should not) */
-
- if (FIXNUM_P(x)) return FIX2LONG(x);
- if (TYPE(x) == T_BIGNUM) {
- return rb_big2ulong_pack(x);
- }
- rb_raise(rb_eTypeError, "can't convert %s to `integer'", rb_obj_classname(x));
- return 0; /* not reached */
-}
-
-#if SIZEOF_LONG == SIZE32
-# define EXTEND32(x)
-#else
-/* invariant in modulo 1<<31 */
-# define EXTEND32(x) do { if (!natint) {(x) = (((1L<<31)-1-(x))^~(~0L<<31));}} while(0)
-#endif
-#if SIZEOF_SHORT == SIZE16
-# define EXTEND16(x)
-#else
-# define EXTEND16(x) do { if (!natint) {(x) = (short)(((1<<15)-1-(x))^~(~0<<15));}} while(0)
-#endif
-
-#ifdef HAVE_LONG_LONG
-# define QUAD_SIZE sizeof(LONG_LONG)
-#else
-# define QUAD_SIZE 8
-#endif
-static const char toofew[] = "too few arguments";
-
-static void encodes _((VALUE,char*,long,int));
-static void qpencode _((VALUE,VALUE,long));
-
-static int uv_to_utf8 _((char*,unsigned long));
-static unsigned long utf8_to_uv _((char*,long*));
-
-/*
- * call-seq:
- * arr.pack ( aTemplateString ) -> aBinaryString
- *
- * Packs the contents of <i>arr</i> into a binary sequence according to
- * the directives in <i>aTemplateString</i> (see the table below)
- * Directives ``A,'' ``a,'' and ``Z'' may be followed by a count,
- * which gives the width of the resulting field. The remaining
- * directives also may take a count, indicating the number of array
- * elements to convert. If the count is an asterisk
- * (``<code>*</code>''), all remaining array elements will be
- * converted. Any of the directives ``<code>sSiIlL</code>'' may be
- * followed by an underscore (``<code>_</code>'') to use the underlying
- * platform's native size for the specified type; otherwise, they use a
- * platform-independent size. Spaces are ignored in the template
- * string. See also <code>String#unpack</code>.
- *
- * a = [ "a", "b", "c" ]
- * n = [ 65, 66, 67 ]
- * a.pack("A3A3A3") #=> "a b c "
- * a.pack("a3a3a3") #=> "a\000\000b\000\000c\000\000"
- * n.pack("ccc") #=> "ABC"
- *
- * Directives for +pack+.
- *
- * Directive Meaning
- * ---------------------------------------------------------------
- * @ | Moves to absolute position
- * A | ASCII string (space padded, count is width)
- * a | ASCII string (null padded, count is width)
- * B | Bit string (descending bit order)
- * b | Bit string (ascending bit order)
- * C | Unsigned char
- * c | Char
- * D, d | Double-precision float, native format
- * E | Double-precision float, little-endian byte order
- * e | Single-precision float, little-endian byte order
- * F, f | Single-precision float, native format
- * G | Double-precision float, network (big-endian) byte order
- * g | Single-precision float, network (big-endian) byte order
- * H | Hex string (high nibble first)
- * h | Hex string (low nibble first)
- * I | Unsigned integer
- * i | Integer
- * L | Unsigned long
- * l | Long
- * M | Quoted printable, MIME encoding (see RFC2045)
- * m | Base64 encoded string
- * N | Long, network (big-endian) byte order
- * n | Short, network (big-endian) byte-order
- * P | Pointer to a structure (fixed-length string)
- * p | Pointer to a null-terminated string
- * Q, q | 64-bit number
- * S | Unsigned short
- * s | Short
- * U | UTF-8
- * u | UU-encoded string
- * V | Long, little-endian byte order
- * v | Short, little-endian byte order
- * w | BER-compressed integer\fnm
- * X | Back up a byte
- * x | Null byte
- * Z | Same as ``a'', except that null is added with *
- */
-
-static VALUE
-pack_pack(ary, fmt)
- VALUE ary, fmt;
-{
- static char *nul10 = "\0\0\0\0\0\0\0\0\0\0";
- static char *spc10 = " ";
- char *p, *pend;
- VALUE res, from, associates = 0;
- char type;
- long items, len, idx, plen;
- char *ptr;
-#ifdef NATINT_PACK
- int natint; /* native integer */
-#endif
-
- StringValue(fmt);
- p = RSTRING(fmt)->ptr;
- pend = p + RSTRING(fmt)->len;
- res = rb_str_buf_new(0);
-
- items = RARRAY(ary)->len;
- idx = 0;
-
-#define TOO_FEW (rb_raise(rb_eArgError, toofew), 0)
-#define THISFROM (items > 0 ? RARRAY(ary)->ptr[idx] : TOO_FEW)
-#define NEXTFROM (items-- > 0 ? RARRAY(ary)->ptr[idx++] : TOO_FEW)
-
- while (p < pend) {
- if (RSTRING(fmt)->ptr + RSTRING(fmt)->len != pend) {
- rb_raise(rb_eRuntimeError, "format string modified");
- }
- type = *p++; /* get data type */
-#ifdef NATINT_PACK
- natint = 0;
-#endif
-
- if (ISSPACE(type)) continue;
- if (type == '#') {
- while ((p < pend) && (*p != '\n')) {
- p++;
- }
- continue;
- }
- if (*p == '_' || *p == '!') {
- const char *natstr = "sSiIlL";
-
- if (strchr(natstr, type)) {
-#ifdef NATINT_PACK
- natint = 1;
-#endif
- p++;
- }
- else {
- rb_raise(rb_eArgError, "'%c' allowed only after types %s", *p, natstr);
- }
- }
- if (*p == '*') { /* set data length */
- len = strchr("@Xxu", type) ? 0 : items;
- p++;
- }
- else if (ISDIGIT(*p)) {
- len = strtoul(p, (char**)&p, 10);
- }
- else {
- len = 1;
- }
-
- switch (type) {
- case 'A': case 'a': case 'Z':
- case 'B': case 'b':
- case 'H': case 'h':
- from = NEXTFROM;
- if (NIL_P(from)) {
- ptr = "";
- plen = 0;
- }
- else {
- StringValue(from);
- ptr = RSTRING(from)->ptr;
- plen = RSTRING(from)->len;
- OBJ_INFECT(res, from);
- }
-
- if (p[-1] == '*')
- len = plen;
-
- switch (type) {
- case 'a': /* arbitrary binary string (null padded) */
- case 'A': /* ASCII string (space padded) */
- case 'Z': /* null terminated ASCII string */
- if (plen >= len) {
- rb_str_buf_cat(res, ptr, len);
- if (p[-1] == '*' && type == 'Z')
- rb_str_buf_cat(res, nul10, 1);
- }
- else {
- rb_str_buf_cat(res, ptr, plen);
- len -= plen;
- while (len >= 10) {
- rb_str_buf_cat(res, (type == 'A')?spc10:nul10, 10);
- len -= 10;
- }
- rb_str_buf_cat(res, (type == 'A')?spc10:nul10, len);
- }
- break;
-
- case 'b': /* bit string (ascending) */
- {
- int byte = 0;
- long i, j = 0;
-
- if (len > plen) {
- j = (len - plen + 1)/2;
- len = plen;
- }
- for (i=0; i++ < len; ptr++) {
- if (*ptr & 1)
- byte |= 128;
- if (i & 7)
- byte >>= 1;
- else {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- byte = 0;
- }
- }
- if (len & 7) {
- char c;
- byte >>= 7 - (len & 7);
- c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- }
- len = j;
- goto grow;
- }
- break;
-
- case 'B': /* bit string (descending) */
- {
- int byte = 0;
- long i, j = 0;
-
- if (len > plen) {
- j = (len - plen + 1)/2;
- len = plen;
- }
- for (i=0; i++ < len; ptr++) {
- byte |= *ptr & 1;
- if (i & 7)
- byte <<= 1;
- else {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- byte = 0;
- }
- }
- if (len & 7) {
- char c;
- byte <<= 7 - (len & 7);
- c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- }
- len = j;
- goto grow;
- }
- break;
-
- case 'h': /* hex string (low nibble first) */
- {
- int byte = 0;
- long i, j = 0;
-
- if (len > plen) {
- j = (len - plen + 1)/2;
- len = plen;
- }
- for (i=0; i++ < len; ptr++) {
- if (ISALPHA(*ptr))
- byte |= (((*ptr & 15) + 9) & 15) << 4;
- else
- byte |= (*ptr & 15) << 4;
- if (i & 1)
- byte >>= 4;
- else {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- byte = 0;
- }
- }
- if (len & 1) {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- }
- len = j;
- goto grow;
- }
- break;
-
- case 'H': /* hex string (high nibble first) */
- {
- int byte = 0;
- long i, j = 0;
-
- if (len > plen) {
- j = (len - plen + 1)/2;
- len = plen;
- }
- for (i=0; i++ < len; ptr++) {
- if (ISALPHA(*ptr))
- byte |= ((*ptr & 15) + 9) & 15;
- else
- byte |= *ptr & 15;
- if (i & 1)
- byte <<= 4;
- else {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- byte = 0;
- }
- }
- if (len & 1) {
- char c = byte & 0xff;
- rb_str_buf_cat(res, &c, 1);
- }
- len = j;
- goto grow;
- }
- break;
- }
- break;
-
- case 'c': /* signed char */
- case 'C': /* unsigned char */
- while (len-- > 0) {
- char c;
-
- from = NEXTFROM;
- c = num2i32(from);
- rb_str_buf_cat(res, &c, sizeof(char));
- }
- break;
-
- case 's': /* signed short */
- case 'S': /* unsigned short */
- while (len-- > 0) {
- short s;
-
- from = NEXTFROM;
- s = num2i32(from);
- rb_str_buf_cat(res, OFF16(&s), NATINT_LEN(short,2));
- }
- break;
-
- case 'i': /* signed int */
- case 'I': /* unsigned int */
- while (len-- > 0) {
- long i;
-
- from = NEXTFROM;
- i = num2i32(from);
- rb_str_buf_cat(res, OFF32(&i), NATINT_LEN(int,4));
- }
- break;
-
- case 'l': /* signed long */
- case 'L': /* unsigned long */
- while (len-- > 0) {
- long l;
-
- from = NEXTFROM;
- l = num2i32(from);
- rb_str_buf_cat(res, OFF32(&l), NATINT_LEN(long,4));
- }
- break;
-
- case 'q': /* signed quad (64bit) int */
- case 'Q': /* unsigned quad (64bit) int */
- while (len-- > 0) {
- char tmp[QUAD_SIZE];
-
- from = NEXTFROM;
- rb_quad_pack(tmp, from);
- rb_str_buf_cat(res, (char*)&tmp, QUAD_SIZE);
- }
- break;
-
- case 'n': /* unsigned short (network byte-order) */
- while (len-- > 0) {
- unsigned short s;
-
- from = NEXTFROM;
- s = num2i32(from);
- s = NATINT_HTONS(s);
- rb_str_buf_cat(res, OFF16(&s), NATINT_LEN(short,2));
- }
- break;
-
- case 'N': /* unsigned long (network byte-order) */
- while (len-- > 0) {
- unsigned long l;
-
- from = NEXTFROM;
- l = num2i32(from);
- l = NATINT_HTONL(l);
- rb_str_buf_cat(res, OFF32(&l), NATINT_LEN(long,4));
- }
- break;
-
- case 'v': /* unsigned short (VAX byte-order) */
- while (len-- > 0) {
- unsigned short s;
-
- from = NEXTFROM;
- s = num2i32(from);
- s = NATINT_HTOVS(s);
- rb_str_buf_cat(res, OFF16(&s), NATINT_LEN(short,2));
- }
- break;
-
- case 'V': /* unsigned long (VAX byte-order) */
- while (len-- > 0) {
- unsigned long l;
-
- from = NEXTFROM;
- l = num2i32(from);
- l = NATINT_HTOVL(l);
- rb_str_buf_cat(res, OFF32(&l), NATINT_LEN(long,4));
- }
- break;
-
- case 'f': /* single precision float in native format */
- case 'F': /* ditto */
- while (len-- > 0) {
- float f;
-
- from = NEXTFROM;
- f = RFLOAT(rb_Float(from))->value;
- rb_str_buf_cat(res, (char*)&f, sizeof(float));
- }
- break;
-
- case 'e': /* single precision float in VAX byte-order */
- while (len-- > 0) {
- float f;
- FLOAT_CONVWITH(ftmp);
-
- from = NEXTFROM;
- f = RFLOAT(rb_Float(from))->value;
- f = HTOVF(f,ftmp);
- rb_str_buf_cat(res, (char*)&f, sizeof(float));
- }
- break;
-
- case 'E': /* double precision float in VAX byte-order */
- while (len-- > 0) {
- double d;
- DOUBLE_CONVWITH(dtmp);
-
- from = NEXTFROM;
- d = RFLOAT(rb_Float(from))->value;
- d = HTOVD(d,dtmp);
- rb_str_buf_cat(res, (char*)&d, sizeof(double));
- }
- break;
-
- case 'd': /* double precision float in native format */
- case 'D': /* ditto */
- while (len-- > 0) {
- double d;
-
- from = NEXTFROM;
- d = RFLOAT(rb_Float(from))->value;
- rb_str_buf_cat(res, (char*)&d, sizeof(double));
- }
- break;
-
- case 'g': /* single precision float in network byte-order */
- while (len-- > 0) {
- float f;
- FLOAT_CONVWITH(ftmp);
-
- from = NEXTFROM;
- f = RFLOAT(rb_Float(from))->value;
- f = HTONF(f,ftmp);
- rb_str_buf_cat(res, (char*)&f, sizeof(float));
- }
- break;
-
- case 'G': /* double precision float in network byte-order */
- while (len-- > 0) {
- double d;
- DOUBLE_CONVWITH(dtmp);
-
- from = NEXTFROM;
- d = RFLOAT(rb_Float(from))->value;
- d = HTOND(d,dtmp);
- rb_str_buf_cat(res, (char*)&d, sizeof(double));
- }
- break;
-
- case 'x': /* null byte */
- grow:
- while (len >= 10) {
- rb_str_buf_cat(res, nul10, 10);
- len -= 10;
- }
- rb_str_buf_cat(res, nul10, len);
- break;
-
- case 'X': /* back up byte */
- shrink:
- plen = RSTRING(res)->len;
- if (plen < len)
- rb_raise(rb_eArgError, "X outside of string");
- RSTRING(res)->len = plen - len;
- RSTRING(res)->ptr[plen - len] = '\0';
- break;
-
- case '@': /* null fill to absolute position */
- len -= RSTRING(res)->len;
- if (len > 0) goto grow;
- len = -len;
- if (len > 0) goto shrink;
- break;
-
- case '%':
- rb_raise(rb_eArgError, "%% is not supported");
- break;
-
- case 'U': /* Unicode character */
- while (len-- > 0) {
- long l;
- char buf[8];
- int le;
-
- from = NEXTFROM;
- from = rb_to_int(from);
- l = NUM2INT(from);
- if (l < 0) {
- rb_raise(rb_eRangeError, "pack(U): value out of range");
- }
- le = uv_to_utf8(buf, l);
- rb_str_buf_cat(res, (char*)buf, le);
- }
- break;
-
- case 'u': /* uuencoded string */
- case 'm': /* base64 encoded string */
- from = NEXTFROM;
- StringValue(from);
- ptr = RSTRING(from)->ptr;
- plen = RSTRING(from)->len;
-
- if (len <= 2)
- len = 45;
- else
- len = len / 3 * 3;
- while (plen > 0) {
- long todo;
-
- if (plen > len)
- todo = len;
- else
- todo = plen;
- encodes(res, ptr, todo, type);
- plen -= todo;
- ptr += todo;
- }
- break;
-
- case 'M': /* quoted-printable encoded string */
- from = rb_obj_as_string(NEXTFROM);
- if (len <= 1)
- len = 72;
- qpencode(res, from, len);
- break;
-
- case 'P': /* pointer to packed byte string */
- from = THISFROM;
- if (!NIL_P(from)) {
- StringValue(from);
- if (RSTRING(from)->len < len) {
- rb_raise(rb_eArgError, "too short buffer for P(%ld for %ld)",
- RSTRING(from)->len, len);
- }
- }
- len = 1;
- /* FALL THROUGH */
- case 'p': /* pointer to string */
- while (len-- > 0) {
- char *t;
- from = NEXTFROM;
- if (NIL_P(from)) {
- t = 0;
- }
- else {
- t = StringValuePtr(from);
- }
- if (!associates) {
- associates = rb_ary_new();
- }
- rb_ary_push(associates, from);
- rb_obj_taint(from);
- rb_str_buf_cat(res, (char*)&t, sizeof(char*));
- }
- break;
-
- case 'w': /* BER compressed integer */
- while (len-- > 0) {
- unsigned long ul;
- VALUE buf = rb_str_new(0, 0);
- char c, *bufs, *bufe;
-
- from = NEXTFROM;
- if (TYPE(from) == T_BIGNUM) {
- VALUE big128 = rb_uint2big(128);
- while (TYPE(from) == T_BIGNUM) {
- from = rb_big_divmod(from, big128);
- c = NUM2INT(RARRAY(from)->ptr[1]) | 0x80; /* mod */
- rb_str_buf_cat(buf, &c, sizeof(char));
- from = RARRAY(from)->ptr[0]; /* div */
- }
- }
-
- {
- long l = NUM2LONG(from);
- if (l < 0) {
- rb_raise(rb_eArgError, "can't compress negative numbers");
- }
- ul = l;
- }
-
- while (ul) {
- c = ((ul & 0x7f) | 0x80);
- rb_str_buf_cat(buf, &c, sizeof(char));
- ul >>= 7;
- }
-
- if (RSTRING(buf)->len) {
- bufs = RSTRING(buf)->ptr;
- bufe = bufs + RSTRING(buf)->len - 1;
- *bufs &= 0x7f; /* clear continue bit */
- while (bufs < bufe) { /* reverse */
- c = *bufs;
- *bufs++ = *bufe;
- *bufe-- = c;
- }
- rb_str_buf_cat(res, RSTRING(buf)->ptr, RSTRING(buf)->len);
- }
- else {
- c = 0;
- rb_str_buf_cat(res, &c, sizeof(char));
- }
- }
- break;
-
- default:
- break;
- }
- }
-
- if (associates) {
- rb_str_associate(res, associates);
- }
- return res;
-}
-
-static char uu_table[] =
-"`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_";
-static char b64_table[] =
-"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-static void
-encodes(str, s, len, type)
- VALUE str;
- char *s;
- long len;
- int type;
-{
- char *buff = ALLOCA_N(char, len * 4 / 3 + 6);
- long i = 0;
- char *trans = type == 'u' ? uu_table : b64_table;
- int padding;
-
- if (type == 'u') {
- buff[i++] = len + ' ';
- padding = '`';
- }
- else {
- padding = '=';
- }
- while (len >= 3) {
- buff[i++] = trans[077 & (*s >> 2)];
- buff[i++] = trans[077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017))];
- buff[i++] = trans[077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03))];
- buff[i++] = trans[077 & s[2]];
- s += 3;
- len -= 3;
- }
- if (len == 2) {
- buff[i++] = trans[077 & (*s >> 2)];
- buff[i++] = trans[077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017))];
- buff[i++] = trans[077 & (((s[1] << 2) & 074) | (('\0' >> 6) & 03))];
- buff[i++] = padding;
- }
- else if (len == 1) {
- buff[i++] = trans[077 & (*s >> 2)];
- buff[i++] = trans[077 & (((*s << 4) & 060) | (('\0' >> 4) & 017))];
- buff[i++] = padding;
- buff[i++] = padding;
- }
- buff[i++] = '\n';
- rb_str_buf_cat(str, buff, i);
-}
-
-static char hex_table[] = "0123456789ABCDEF";
-
-static void
-qpencode(str, from, len)
- VALUE str, from;
- long len;
-{
- char buff[1024];
- long i = 0, n = 0, prev = EOF;
- unsigned char *s = (unsigned char*)RSTRING(from)->ptr;
- unsigned char *send = s + RSTRING(from)->len;
-
- while (s < send) {
- if ((*s > 126) ||
- (*s < 32 && *s != '\n' && *s != '\t') ||
- (*s == '=')) {
- buff[i++] = '=';
- buff[i++] = hex_table[*s >> 4];
- buff[i++] = hex_table[*s & 0x0f];
- n += 3;
- prev = EOF;
- }
- else if (*s == '\n') {
- if (prev == ' ' || prev == '\t') {
- buff[i++] = '=';
- buff[i++] = *s;
- }
- buff[i++] = *s;
- n = 0;
- prev = *s;
- }
- else {
- buff[i++] = *s;
- n++;
- prev = *s;
- }
- if (n > len) {
- buff[i++] = '=';
- buff[i++] = '\n';
- n = 0;
- prev = '\n';
- }
- if (i > 1024 - 5) {
- rb_str_buf_cat(str, buff, i);
- i = 0;
- }
- s++;
- }
- if (n > 0) {
- buff[i++] = '=';
- buff[i++] = '\n';
- }
- if (i > 0) {
- rb_str_buf_cat(str, buff, i);
- }
-}
-
-static inline int
-hex2num(c)
- char c;
-{
- switch (c) {
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- return c - '0';
- case 'a': case 'b': case 'c':
- case 'd': case 'e': case 'f':
- return c - 'a' + 10;
- case 'A': case 'B': case 'C':
- case 'D': case 'E': case 'F':
- return c - 'A' + 10;
- default:
- return -1;
- }
-}
-
-#define PACK_LENGTH_ADJUST_SIZE(sz) do { \
- tmp = 0; \
- if (len > (send-s)/sz) { \
- if (!star) { \
- tmp = len-(send-s)/sz; \
- } \
- len = (send-s)/sz; \
- } \
-} while (0)
-
-#ifdef NATINT_PACK
-#define PACK_LENGTH_ADJUST(type,sz) do { \
- int t__len = NATINT_LEN(type,(sz)); \
- PACK_LENGTH_ADJUST_SIZE(t__len); \
-} while (0)
-#else
-#define PACK_LENGTH_ADJUST(type,sz) \
- PACK_LENGTH_ADJUST_SIZE(sizeof(type))
-#endif
-
-#define PACK_ITEM_ADJUST() while (tmp--) rb_ary_push(ary, Qnil)
-
-static VALUE
-infected_str_new(ptr, len, str)
- const char *ptr;
- long len;
- VALUE str;
-{
- VALUE s = rb_str_new(ptr, len);
-
- OBJ_INFECT(s, str);
- return s;
-}
-
-/*
- * call-seq:
- * str.unpack(format) => anArray
- *
- * Decodes <i>str</i> (which may contain binary data) according to the
- * format string, returning an array of each value extracted. The
- * format string consists of a sequence of single-character directives,
- * summarized in the table at the end of this entry.
- * Each directive may be followed
- * by a number, indicating the number of times to repeat with this
- * directive. An asterisk (``<code>*</code>'') will use up all
- * remaining elements. The directives <code>sSiIlL</code> may each be
- * followed by an underscore (``<code>_</code>'') to use the underlying
- * platform's native size for the specified type; otherwise, it uses a
- * platform-independent consistent size. Spaces are ignored in the
- * format string. See also <code>Array#pack</code>.
- *
- * "abc \0\0abc \0\0".unpack('A6Z6') #=> ["abc", "abc "]
- * "abc \0\0".unpack('a3a3') #=> ["abc", " \000\000"]
- * "abc \0abc \0".unpack('Z*Z*') #=> ["abc ", "abc "]
- * "aa".unpack('b8B8') #=> ["10000110", "01100001"]
- * "aaa".unpack('h2H2c') #=> ["16", "61", 97]
- * "\xfe\xff\xfe\xff".unpack('sS') #=> [-2, 65534]
- * "now=20is".unpack('M*') #=> ["now is"]
- * "whole".unpack('xax2aX2aX1aX2a') #=> ["h", "e", "l", "l", "o"]
- *
- * This table summarizes the various formats and the Ruby classes
- * returned by each.
- *
- * Format | Returns | Function
- * -------+---------+-----------------------------------------
- * A | String | with trailing nulls and spaces removed
- * -------+---------+-----------------------------------------
- * a | String | string
- * -------+---------+-----------------------------------------
- * B | String | extract bits from each character (msb first)
- * -------+---------+-----------------------------------------
- * b | String | extract bits from each character (lsb first)
- * -------+---------+-----------------------------------------
- * C | Fixnum | extract a character as an unsigned integer
- * -------+---------+-----------------------------------------
- * c | Fixnum | extract a character as an integer
- * -------+---------+-----------------------------------------
- * d,D | Float | treat sizeof(double) characters as
- * | | a native double
- * -------+---------+-----------------------------------------
- * E | Float | treat sizeof(double) characters as
- * | | a double in little-endian byte order
- * -------+---------+-----------------------------------------
- * e | Float | treat sizeof(float) characters as
- * | | a float in little-endian byte order
- * -------+---------+-----------------------------------------
- * f,F | Float | treat sizeof(float) characters as
- * | | a native float
- * -------+---------+-----------------------------------------
- * G | Float | treat sizeof(double) characters as
- * | | a double in network byte order
- * -------+---------+-----------------------------------------
- * g | Float | treat sizeof(float) characters as a
- * | | float in network byte order
- * -------+---------+-----------------------------------------
- * H | String | extract hex nibbles from each character
- * | | (most significant first)
- * -------+---------+-----------------------------------------
- * h | String | extract hex nibbles from each character
- * | | (least significant first)
- * -------+---------+-----------------------------------------
- * I | Integer | treat sizeof(int) (modified by _)
- * | | successive characters as an unsigned
- * | | native integer
- * -------+---------+-----------------------------------------
- * i | Integer | treat sizeof(int) (modified by _)
- * | | successive characters as a signed
- * | | native integer
- * -------+---------+-----------------------------------------
- * L | Integer | treat four (modified by _) successive
- * | | characters as an unsigned native
- * | | long integer
- * -------+---------+-----------------------------------------
- * l | Integer | treat four (modified by _) successive
- * | | characters as a signed native
- * | | long integer
- * -------+---------+-----------------------------------------
- * M | String | quoted-printable
- * -------+---------+-----------------------------------------
- * m | String | base64-encoded
- * -------+---------+-----------------------------------------
- * N | Integer | treat four characters as an unsigned
- * | | long in network byte order
- * -------+---------+-----------------------------------------
- * n | Fixnum | treat two characters as an unsigned
- * | | short in network byte order
- * -------+---------+-----------------------------------------
- * P | String | treat sizeof(char *) characters as a
- * | | pointer, and return \emph{len} characters
- * | | from the referenced location
- * -------+---------+-----------------------------------------
- * p | String | treat sizeof(char *) characters as a
- * | | pointer to a null-terminated string
- * -------+---------+-----------------------------------------
- * Q | Integer | treat 8 characters as an unsigned
- * | | quad word (64 bits)
- * -------+---------+-----------------------------------------
- * q | Integer | treat 8 characters as a signed
- * | | quad word (64 bits)
- * -------+---------+-----------------------------------------
- * S | Fixnum | treat two (different if _ used)
- * | | successive characters as an unsigned
- * | | short in native byte order
- * -------+---------+-----------------------------------------
- * s | Fixnum | Treat two (different if _ used)
- * | | successive characters as a signed short
- * | | in native byte order
- * -------+---------+-----------------------------------------
- * U | Integer | UTF-8 characters as unsigned integers
- * -------+---------+-----------------------------------------
- * u | String | UU-encoded
- * -------+---------+-----------------------------------------
- * V | Fixnum | treat four characters as an unsigned
- * | | long in little-endian byte order
- * -------+---------+-----------------------------------------
- * v | Fixnum | treat two characters as an unsigned
- * | | short in little-endian byte order
- * -------+---------+-----------------------------------------
- * w | Integer | BER-compressed integer (see Array.pack)
- * -------+---------+-----------------------------------------
- * X | --- | skip backward one character
- * -------+---------+-----------------------------------------
- * x | --- | skip forward one character
- * -------+---------+-----------------------------------------
- * Z | String | with trailing nulls removed
- * | | upto first null with *
- * -------+---------+-----------------------------------------
- * @ | --- | skip to the offset given by the
- * | | length argument
- * -------+---------+-----------------------------------------
- */
-
-static VALUE
-pack_unpack(str, fmt)
- VALUE str, fmt;
-{
- static char *hexdigits = "0123456789abcdef0123456789ABCDEFx";
- char *s, *send;
- char *p, *pend;
- VALUE ary;
- char type;
- long len;
- int tmp, star;
-#ifdef NATINT_PACK
- int natint; /* native integer */
-#endif
-
- StringValue(str);
- StringValue(fmt);
- s = RSTRING(str)->ptr;
- send = s + RSTRING(str)->len;
- p = RSTRING(fmt)->ptr;
- pend = p + RSTRING(fmt)->len;
-
- ary = rb_ary_new();
- while (p < pend) {
- type = *p++;
-#ifdef NATINT_PACK
- natint = 0;
-#endif
-
- if (ISSPACE(type)) continue;
- if (type == '#') {
- while ((p < pend) && (*p != '\n')) {
- p++;
- }
- continue;
- }
- star = 0;
- if (*p == '_' || *p == '!') {
- char *natstr = "sSiIlL";
-
- if (strchr(natstr, type)) {
-#ifdef NATINT_PACK
- natint = 1;
-#endif
- p++;
- }
- else {
- rb_raise(rb_eArgError, "'%c' allowed only after types %s", *p, natstr);
- }
- }
- if (p >= pend)
- len = 1;
- else if (*p == '*') {
- star = 1;
- len = send - s;
- p++;
- }
- else if (ISDIGIT(*p)) {
- len = strtoul(p, (char**)&p, 10);
- }
- else {
- len = (type != '@');
- }
-
- switch (type) {
- case '%':
- rb_raise(rb_eArgError, "%% is not supported");
- break;
-
- case 'A':
- if (len > send - s) len = send - s;
- {
- long end = len;
- char *t = s + len - 1;
-
- while (t >= s) {
- if (*t != ' ' && *t != '\0') break;
- t--; len--;
- }
- rb_ary_push(ary, infected_str_new(s, len, str));
- s += end;
- }
- break;
-
- case 'Z':
- {
- char *t = s;
-
- if (len > send-s) len = send-s;
- while (t < s+len && *t) t++;
- rb_ary_push(ary, infected_str_new(s, t-s, str));
- if (t < send) t++;
- s = star ? t : s+len;
- }
- break;
-
- case 'a':
- if (len > send - s) len = send - s;
- rb_ary_push(ary, infected_str_new(s, len, str));
- s += len;
- break;
-
-
- case 'b':
- {
- VALUE bitstr;
- char *t;
- int bits;
- long i;
-
- if (p[-1] == '*' || len > (send - s) * 8)
- len = (send - s) * 8;
- bits = 0;
- rb_ary_push(ary, bitstr = rb_str_new(0, len));
- t = RSTRING(bitstr)->ptr;
- for (i=0; i<len; i++) {
- if (i & 7) bits >>= 1;
- else bits = *s++;
- *t++ = (bits & 1) ? '1' : '0';
- }
- }
- break;
-
- case 'B':
- {
- VALUE bitstr;
- char *t;
- int bits;
- long i;
-
- if (p[-1] == '*' || len > (send - s) * 8)
- len = (send - s) * 8;
- bits = 0;
- rb_ary_push(ary, bitstr = rb_str_new(0, len));
- t = RSTRING(bitstr)->ptr;
- for (i=0; i<len; i++) {
- if (i & 7) bits <<= 1;
- else bits = *s++;
- *t++ = (bits & 128) ? '1' : '0';
- }
- }
- break;
-
- case 'h':
- {
- VALUE bitstr;
- char *t;
- int bits;
- long i;
-
- if (p[-1] == '*' || len > (send - s) * 2)
- len = (send - s) * 2;
- bits = 0;
- rb_ary_push(ary, bitstr = rb_str_new(0, len));
- t = RSTRING(bitstr)->ptr;
- for (i=0; i<len; i++) {
- if (i & 1)
- bits >>= 4;
- else
- bits = *s++;
- *t++ = hexdigits[bits & 15];
- }
- }
- break;
-
- case 'H':
- {
- VALUE bitstr;
- char *t;
- int bits;
- long i;
-
- if (p[-1] == '*' || len > (send - s) * 2)
- len = (send - s) * 2;
- bits = 0;
- rb_ary_push(ary, bitstr = rb_str_new(0, len));
- t = RSTRING(bitstr)->ptr;
- for (i=0; i<len; i++) {
- if (i & 1)
- bits <<= 4;
- else
- bits = *s++;
- *t++ = hexdigits[(bits >> 4) & 15];
- }
- }
- break;
-
- case 'c':
- PACK_LENGTH_ADJUST(char,sizeof(char));
- while (len-- > 0) {
- int c = *s++;
- if (c > (char)127) c-=256;
- rb_ary_push(ary, INT2FIX(c));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'C':
- PACK_LENGTH_ADJUST(unsigned char,sizeof(unsigned char));
- while (len-- > 0) {
- unsigned char c = *s++;
- rb_ary_push(ary, INT2FIX(c));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 's':
- PACK_LENGTH_ADJUST(short,2);
- while (len-- > 0) {
- short tmp = 0;
- memcpy(OFF16(&tmp), s, NATINT_LEN(short,2));
- EXTEND16(tmp);
- s += NATINT_LEN(short,2);
- rb_ary_push(ary, INT2FIX(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'S':
- PACK_LENGTH_ADJUST(unsigned short,2);
- while (len-- > 0) {
- unsigned short tmp = 0;
- memcpy(OFF16(&tmp), s, NATINT_LEN(unsigned short,2));
- s += NATINT_LEN(unsigned short,2);
- rb_ary_push(ary, INT2FIX(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'i':
- PACK_LENGTH_ADJUST(int,sizeof(int));
- while (len-- > 0) {
- int tmp;
- memcpy(&tmp, s, sizeof(int));
- s += sizeof(int);
- rb_ary_push(ary, INT2NUM(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'I':
- PACK_LENGTH_ADJUST(unsigned int,sizeof(unsigned int));
- while (len-- > 0) {
- unsigned int tmp;
- memcpy(&tmp, s, sizeof(unsigned int));
- s += sizeof(unsigned int);
- rb_ary_push(ary, UINT2NUM(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'l':
- PACK_LENGTH_ADJUST(long,4);
- while (len-- > 0) {
- long tmp = 0;
- memcpy(OFF32(&tmp), s, NATINT_LEN(long,4));
- EXTEND32(tmp);
- s += NATINT_LEN(long,4);
- rb_ary_push(ary, LONG2NUM(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
- case 'L':
- PACK_LENGTH_ADJUST(unsigned long,4);
- while (len-- > 0) {
- unsigned long tmp = 0;
- memcpy(OFF32(&tmp), s, NATINT_LEN(unsigned long,4));
- s += NATINT_LEN(unsigned long,4);
- rb_ary_push(ary, ULONG2NUM(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'q':
- PACK_LENGTH_ADJUST_SIZE(QUAD_SIZE);
- while (len-- > 0) {
- char *tmp = (char*)s;
- s += QUAD_SIZE;
- rb_ary_push(ary, rb_quad_unpack(tmp, 1));
- }
- PACK_ITEM_ADJUST();
- break;
- case 'Q':
- PACK_LENGTH_ADJUST_SIZE(QUAD_SIZE);
- while (len-- > 0) {
- char *tmp = (char*)s;
- s += QUAD_SIZE;
- rb_ary_push(ary, rb_quad_unpack(tmp, 0));
- }
- break;
-
- case 'n':
- PACK_LENGTH_ADJUST(unsigned short,2);
- while (len-- > 0) {
- unsigned short tmp = 0;
- memcpy(OFF16B(&tmp), s, NATINT_LEN(unsigned short,2));
- s += NATINT_LEN(unsigned short,2);
- rb_ary_push(ary, UINT2NUM(ntohs(tmp)));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'N':
- PACK_LENGTH_ADJUST(unsigned long,4);
- while (len-- > 0) {
- unsigned long tmp = 0;
- memcpy(OFF32B(&tmp), s, NATINT_LEN(unsigned long,4));
- s += NATINT_LEN(unsigned long,4);
- rb_ary_push(ary, ULONG2NUM(ntohl(tmp)));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'v':
- PACK_LENGTH_ADJUST(unsigned short,2);
- while (len-- > 0) {
- unsigned short tmp = 0;
- memcpy(OFF16(&tmp), s, NATINT_LEN(unsigned short,2));
- s += NATINT_LEN(unsigned short,2);
- rb_ary_push(ary, UINT2NUM(vtohs(tmp)));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'V':
- PACK_LENGTH_ADJUST(unsigned long,4);
- while (len-- > 0) {
- unsigned long tmp = 0;
- memcpy(OFF32(&tmp), s, NATINT_LEN(long,4));
- s += NATINT_LEN(long,4);
- rb_ary_push(ary, ULONG2NUM(vtohl(tmp)));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'f':
- case 'F':
- PACK_LENGTH_ADJUST(float,sizeof(float));
- while (len-- > 0) {
- float tmp;
- memcpy(&tmp, s, sizeof(float));
- s += sizeof(float);
- rb_ary_push(ary, rb_float_new((double)tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'e':
- PACK_LENGTH_ADJUST(float,sizeof(float));
- while (len-- > 0) {
- float tmp;
- FLOAT_CONVWITH(ftmp);
-
- memcpy(&tmp, s, sizeof(float));
- s += sizeof(float);
- tmp = VTOHF(tmp,ftmp);
- rb_ary_push(ary, rb_float_new((double)tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'E':
- PACK_LENGTH_ADJUST(double,sizeof(double));
- while (len-- > 0) {
- double tmp;
- DOUBLE_CONVWITH(dtmp);
-
- memcpy(&tmp, s, sizeof(double));
- s += sizeof(double);
- tmp = VTOHD(tmp,dtmp);
- rb_ary_push(ary, rb_float_new(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'D':
- case 'd':
- PACK_LENGTH_ADJUST(double,sizeof(double));
- while (len-- > 0) {
- double tmp;
- memcpy(&tmp, s, sizeof(double));
- s += sizeof(double);
- rb_ary_push(ary, rb_float_new(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'g':
- PACK_LENGTH_ADJUST(float,sizeof(float));
- while (len-- > 0) {
- float tmp;
- FLOAT_CONVWITH(ftmp;)
-
- memcpy(&tmp, s, sizeof(float));
- s += sizeof(float);
- tmp = NTOHF(tmp,ftmp);
- rb_ary_push(ary, rb_float_new((double)tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'G':
- PACK_LENGTH_ADJUST(double,sizeof(double));
- while (len-- > 0) {
- double tmp;
- DOUBLE_CONVWITH(dtmp);
-
- memcpy(&tmp, s, sizeof(double));
- s += sizeof(double);
- tmp = NTOHD(tmp,dtmp);
- rb_ary_push(ary, rb_float_new(tmp));
- }
- PACK_ITEM_ADJUST();
- break;
-
- case 'U':
- if (len > send - s) len = send - s;
- while (len > 0 && s < send) {
- long alen = send - s;
- unsigned long l;
-
- l = utf8_to_uv(s, &alen);
- s += alen; len--;
- rb_ary_push(ary, ULONG2NUM(l));
- }
- break;
-
- case 'u':
- {
- VALUE buf = infected_str_new(0, (send - s)*3/4, str);
- char *ptr = RSTRING(buf)->ptr;
- long total = 0;
-
- while (s < send && *s > ' ' && *s < 'a') {
- long a,b,c,d;
- char hunk[4];
-
- hunk[3] = '\0';
- len = (*s++ - ' ') & 077;
- total += len;
- if (total > RSTRING(buf)->len) {
- len -= total - RSTRING(buf)->len;
- total = RSTRING(buf)->len;
- }
-
- while (len > 0) {
- long mlen = len > 3 ? 3 : len;
-
- if (s < send && *s >= ' ')
- a = (*s++ - ' ') & 077;
- else
- a = 0;
- if (s < send && *s >= ' ')
- b = (*s++ - ' ') & 077;
- else
- b = 0;
- if (s < send && *s >= ' ')
- c = (*s++ - ' ') & 077;
- else
- c = 0;
- if (s < send && *s >= ' ')
- d = (*s++ - ' ') & 077;
- else
- d = 0;
- hunk[0] = a << 2 | b >> 4;
- hunk[1] = b << 4 | c >> 2;
- hunk[2] = c << 6 | d;
- memcpy(ptr, hunk, mlen);
- ptr += mlen;
- len -= mlen;
- }
- if (*s == '\r') s++;
- if (*s == '\n') s++;
- else if (s < send && (s+1 == send || s[1] == '\n'))
- s += 2; /* possible checksum byte */
- }
-
- RSTRING(buf)->ptr[total] = '\0';
- RSTRING(buf)->len = total;
- rb_ary_push(ary, buf);
- }
- break;
-
- case 'm':
- {
- VALUE buf = infected_str_new(0, (send - s)*3/4, str);
- char *ptr = RSTRING(buf)->ptr;
- int a = -1,b = -1,c = 0,d;
- static int first = 1;
- static int b64_xtable[256];
-
- if (first) {
- int i;
- first = 0;
-
- for (i = 0; i < 256; i++) {
- b64_xtable[i] = -1;
- }
- for (i = 0; i < 64; i++) {
- b64_xtable[(int)b64_table[i]] = i;
- }
- }
- while (s < send) {
- a = b = c = d = -1;
- while((a = b64_xtable[(int)(*(unsigned char*)s)]) == -1 && s < send) { s++; }
- if( s >= send ) break;
- s++;
- while((b = b64_xtable[(int)(*(unsigned char*)s)]) == -1 && s < send) { s++; }
- if( s >= send ) break;
- s++;
- while((c = b64_xtable[(int)(*(unsigned char*)s)]) == -1 && s < send) { if( *s == '=' ) break; s++; }
- if( *s == '=' || s >= send ) break;
- s++;
- while((d = b64_xtable[(int)(*(unsigned char*)s)]) == -1 && s < send) { if( *s == '=' ) break; s++; }
- if( *s == '=' || s >= send ) break;
- s++;
- *ptr++ = a << 2 | b >> 4;
- *ptr++ = b << 4 | c >> 2;
- *ptr++ = c << 6 | d;
- }
- if (a != -1 && b != -1) {
- if (c == -1 && *s == '=')
- *ptr++ = a << 2 | b >> 4;
- else if (c != -1 && *s == '=') {
- *ptr++ = a << 2 | b >> 4;
- *ptr++ = b << 4 | c >> 2;
- }
- }
- *ptr = '\0';
- RSTRING(buf)->len = ptr - RSTRING(buf)->ptr;
- rb_ary_push(ary, buf);
- }
- break;
-
- case 'M':
- {
- VALUE buf = infected_str_new(0, send - s, str);
- char *ptr = RSTRING(buf)->ptr;
- int c1, c2;
-
- while (s < send) {
- if (*s == '=') {
- if (++s == send) break;
- if (s+1 < send && *s == '\r' && *(s+1) == '\n')
- s++;
- if (*s != '\n') {
- if ((c1 = hex2num(*s)) == -1) break;
- if (++s == send) break;
- if ((c2 = hex2num(*s)) == -1) break;
- *ptr++ = c1 << 4 | c2;
- }
- }
- else {
- *ptr++ = *s;
- }
- s++;
- }
- *ptr = '\0';
- RSTRING(buf)->len = ptr - RSTRING(buf)->ptr;
- rb_ary_push(ary, buf);
- }
- break;
-
- case '@':
- if (len > RSTRING(str)->len)
- rb_raise(rb_eArgError, "@ outside of string");
- s = RSTRING(str)->ptr + len;
- break;
-
- case 'X':
- if (len > s - RSTRING(str)->ptr)
- rb_raise(rb_eArgError, "X outside of string");
- s -= len;
- break;
-
- case 'x':
- if (len > send - s)
- rb_raise(rb_eArgError, "x outside of string");
- s += len;
- break;
-
- case 'P':
- if (sizeof(char *) <= send - s) {
- char *t;
- VALUE tmp;
-
- memcpy(&t, s, sizeof(char *));
- s += sizeof(char *);
-
- if (t) {
- VALUE a, *p, *pend;
-
- if (!(a = rb_str_associated(str))) {
- rb_raise(rb_eArgError, "no associated pointer");
- }
- p = RARRAY(a)->ptr;
- pend = p + RARRAY(a)->len;
- while (p < pend) {
- if (TYPE(*p) == T_STRING && RSTRING(*p)->ptr == t) {
- if (len < RSTRING(*p)->len) {
- tmp = rb_tainted_str_new(t, len);
- rb_str_associate(tmp, a);
- }
- else {
- tmp = *p;
- }
- break;
- }
- p++;
- }
- if (p == pend) {
- rb_raise(rb_eArgError, "non associated pointer");
- }
- }
- else {
- tmp = Qnil;
- }
- rb_ary_push(ary, tmp);
- }
- break;
-
- case 'p':
- if (len > (send - s) / sizeof(char *))
- len = (send - s) / sizeof(char *);
- while (len-- > 0) {
- if (send - s < sizeof(char *))
- break;
- else {
- VALUE tmp;
- char *t;
-
- memcpy(&t, s, sizeof(char *));
- s += sizeof(char *);
-
- if (t) {
- VALUE a, *p, *pend;
-
- if (!(a = rb_str_associated(str))) {
- rb_raise(rb_eArgError, "no associated pointer");
- }
- p = RARRAY(a)->ptr;
- pend = p + RARRAY(a)->len;
- while (p < pend) {
- if (TYPE(*p) == T_STRING && RSTRING(*p)->ptr == t) {
- tmp = *p;
- break;
- }
- p++;
- }
- if (p == pend) {
- rb_raise(rb_eArgError, "non associated pointer");
- }
- }
- else {
- tmp = Qnil;
- }
- rb_ary_push(ary, tmp);
- }
- }
- break;
-
- case 'w':
- {
- unsigned long ul = 0;
- unsigned long ulmask = 0xfeUL << ((sizeof(unsigned long) - 1) * 8);
-
- while (len > 0 && s < send) {
- ul <<= 7;
- ul |= (*s & 0x7f);
- if (!(*s++ & 0x80)) {
- rb_ary_push(ary, ULONG2NUM(ul));
- len--;
- ul = 0;
- }
- else if (ul & ulmask) {
- VALUE big = rb_uint2big(ul);
- VALUE big128 = rb_uint2big(128);
- while (s < send) {
- big = rb_big_mul(big, big128);
- big = rb_big_plus(big, rb_uint2big(*s & 0x7f));
- if (!(*s++ & 0x80)) {
- rb_ary_push(ary, big);
- len--;
- ul = 0;
- break;
- }
- }
- }
- }
- }
- break;
-
- default:
- break;
- }
- }
-
- return ary;
-}
-
-#define BYTEWIDTH 8
-
-static int
-uv_to_utf8(buf, uv)
- char *buf;
- unsigned long uv;
-{
- if (uv <= 0x7f) {
- buf[0] = (char)uv;
- return 1;
- }
- if (uv <= 0x7ff) {
- buf[0] = ((uv>>6)&0xff)|0xc0;
- buf[1] = (uv&0x3f)|0x80;
- return 2;
- }
- if (uv <= 0xffff) {
- buf[0] = ((uv>>12)&0xff)|0xe0;
- buf[1] = ((uv>>6)&0x3f)|0x80;
- buf[2] = (uv&0x3f)|0x80;
- return 3;
- }
- if (uv <= 0x1fffff) {
- buf[0] = ((uv>>18)&0xff)|0xf0;
- buf[1] = ((uv>>12)&0x3f)|0x80;
- buf[2] = ((uv>>6)&0x3f)|0x80;
- buf[3] = (uv&0x3f)|0x80;
- return 4;
- }
- if (uv <= 0x3ffffff) {
- buf[0] = ((uv>>24)&0xff)|0xf8;
- buf[1] = ((uv>>18)&0x3f)|0x80;
- buf[2] = ((uv>>12)&0x3f)|0x80;
- buf[3] = ((uv>>6)&0x3f)|0x80;
- buf[4] = (uv&0x3f)|0x80;
- return 5;
- }
- if (uv <= 0x7fffffff) {
- buf[0] = ((uv>>30)&0xff)|0xfc;
- buf[1] = ((uv>>24)&0x3f)|0x80;
- buf[2] = ((uv>>18)&0x3f)|0x80;
- buf[3] = ((uv>>12)&0x3f)|0x80;
- buf[4] = ((uv>>6)&0x3f)|0x80;
- buf[5] = (uv&0x3f)|0x80;
- return 6;
- }
- rb_raise(rb_eRangeError, "pack(U): value out of range");
-}
-
-static const unsigned long utf8_limits[] = {
- 0x0, /* 1 */
- 0x80, /* 2 */
- 0x800, /* 3 */
- 0x10000, /* 4 */
- 0x200000, /* 5 */
- 0x4000000, /* 6 */
- 0x80000000, /* 7 */
-};
-
-static unsigned long
-utf8_to_uv(p, lenp)
- char *p;
- long *lenp;
-{
- int c = *p++ & 0xff;
- unsigned long uv = c;
- long n;
-
- if (!(uv & 0x80)) {
- *lenp = 1;
- return uv;
- }
- if (!(uv & 0x40)) {
- *lenp = 1;
- rb_raise(rb_eArgError, "malformed UTF-8 character");
- }
-
- if (!(uv & 0x20)) { n = 2; uv &= 0x1f; }
- else if (!(uv & 0x10)) { n = 3; uv &= 0x0f; }
- else if (!(uv & 0x08)) { n = 4; uv &= 0x07; }
- else if (!(uv & 0x04)) { n = 5; uv &= 0x03; }
- else if (!(uv & 0x02)) { n = 6; uv &= 0x01; }
- else {
- *lenp = 1;
- rb_raise(rb_eArgError, "malformed UTF-8 character");
- }
- if (n > *lenp) {
- rb_raise(rb_eArgError, "malformed UTF-8 character (expected %d bytes, given %d bytes)",
- n, *lenp);
- }
- *lenp = n--;
- if (n != 0) {
- while (n--) {
- c = *p++ & 0xff;
- if ((c & 0xc0) != 0x80) {
- *lenp -= n + 1;
- rb_raise(rb_eArgError, "malformed UTF-8 character");
- }
- else {
- c &= 0x3f;
- uv = uv << 6 | c;
- }
- }
- }
- n = *lenp - 1;
- if (uv < utf8_limits[n]) {
- rb_raise(rb_eArgError, "redundant UTF-8 sequence");
- }
- return uv;
-}
-
-void
-Init_pack()
-{
- rb_define_method(rb_cArray, "pack", pack_pack, 1);
- rb_define_method(rb_cString, "unpack", pack_unpack, 1);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 12:46:12 +0000