*** /dev/null Sat Nov 23 05:07:01 2024
--- - Sat Nov 23 05:07:01 2024
***************
*** 0 ****
--- 1,1212 ----
+ /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+ /* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+ /*
+ ** Portable safe sprintf code.
+ **
+ ** Author: Kipp E.B. Hickman
+ */
+ #include "jsstddef.h"
+ #include <stdarg.h>
+ #include <stdio.h>
+ #include <string.h>
+ #include <stdlib.h>
+ #include "jsprf.h"
+ #include "jslong.h"
+ #include "jsutil.h" /* Added by JSIFY */
+
+ /*
+ ** Note: on some platforms va_list is defined as an array,
+ ** and requires array notation.
+ */
+ #ifdef HAVE_VA_COPY
+ #define VARARGS_ASSIGN(foo, bar) VA_COPY(foo,bar)
+ #elif defined(HAVE_VA_LIST_AS_ARRAY)
+ #define VARARGS_ASSIGN(foo, bar) foo[0] = bar[0]
+ #else
+ #define VARARGS_ASSIGN(foo, bar) (foo) = (bar)
+ #endif
+
+ /*
+ ** WARNING: This code may *NOT* call JS_LOG (because JS_LOG calls it)
+ */
+
+ /*
+ ** XXX This needs to be internationalized!
+ */
+
+ typedef struct SprintfStateStr SprintfState;
+
+ struct SprintfStateStr {
+ int (*stuff)(SprintfState *ss, const char *sp, JSUint32 len);
+
+ char *base;
+ char *cur;
+ JSUint32 maxlen;
+
+ int (*func)(void *arg, const char *sp, JSUint32 len);
+ void *arg;
+ };
+
+ /*
+ ** Numbered Arguement State
+ */
+ struct NumArgState{
+ int type; /* type of the current ap */
+ va_list ap; /* point to the corresponding position on ap */
+ };
+
+ #define NAS_DEFAULT_NUM 20 /* default number of NumberedArgumentState array */
+
+
+ #define TYPE_INT16 0
+ #define TYPE_UINT16 1
+ #define TYPE_INTN 2
+ #define TYPE_UINTN 3
+ #define TYPE_INT32 4
+ #define TYPE_UINT32 5
+ #define TYPE_INT64 6
+ #define TYPE_UINT64 7
+ #define TYPE_STRING 8
+ #define TYPE_DOUBLE 9
+ #define TYPE_INTSTR 10
+ #define TYPE_UNKNOWN 20
+
+ #define FLAG_LEFT 0x1
+ #define FLAG_SIGNED 0x2
+ #define FLAG_SPACED 0x4
+ #define FLAG_ZEROS 0x8
+ #define FLAG_NEG 0x10
+
+ /*
+ ** Fill into the buffer using the data in src
+ */
+ static int fill2(SprintfState *ss, const char *src, int srclen, int width,
+ int flags)
+ {
+ char space = ' ';
+ int rv;
+
+ width -= srclen;
+ if ((width > 0) && ((flags & FLAG_LEFT) == 0)) { /* Right adjusting */
+ if (flags & FLAG_ZEROS) {
+ space = '0';
+ }
+ while (--width >= 0) {
+ rv = (*ss->stuff)(ss, &space, 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ }
+
+ /* Copy out the source data */
+ rv = (*ss->stuff)(ss, src, (JSUint32)srclen);
+ if (rv < 0) {
+ return rv;
+ }
+
+ if ((width > 0) && ((flags & FLAG_LEFT) != 0)) { /* Left adjusting */
+ while (--width >= 0) {
+ rv = (*ss->stuff)(ss, &space, 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ }
+ return 0;
+ }
+
+ /*
+ ** Fill a number. The order is: optional-sign zero-filling conversion-digits
+ */
+ static int fill_n(SprintfState *ss, const char *src, int srclen, int width,
+ int prec, int type, int flags)
+ {
+ int zerowidth = 0;
+ int precwidth = 0;
+ int signwidth = 0;
+ int leftspaces = 0;
+ int rightspaces = 0;
+ int cvtwidth;
+ int rv;
+ char sign;
+
+ if ((type & 1) == 0) {
+ if (flags & FLAG_NEG) {
+ sign = '-';
+ signwidth = 1;
+ } else if (flags & FLAG_SIGNED) {
+ sign = '+';
+ signwidth = 1;
+ } else if (flags & FLAG_SPACED) {
+ sign = ' ';
+ signwidth = 1;
+ }
+ }
+ cvtwidth = signwidth + srclen;
+
+ if (prec > 0) {
+ if (prec > srclen) {
+ precwidth = prec - srclen; /* Need zero filling */
+ cvtwidth += precwidth;
+ }
+ }
+
+ if ((flags & FLAG_ZEROS) && (prec < 0)) {
+ if (width > cvtwidth) {
+ zerowidth = width - cvtwidth; /* Zero filling */
+ cvtwidth += zerowidth;
+ }
+ }
+
+ if (flags & FLAG_LEFT) {
+ if (width > cvtwidth) {
+ /* Space filling on the right (i.e. left adjusting) */
+ rightspaces = width - cvtwidth;
+ }
+ } else {
+ if (width > cvtwidth) {
+ /* Space filling on the left (i.e. right adjusting) */
+ leftspaces = width - cvtwidth;
+ }
+ }
+ while (--leftspaces >= 0) {
+ rv = (*ss->stuff)(ss, " ", 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ if (signwidth) {
+ rv = (*ss->stuff)(ss, &sign, 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ while (--precwidth >= 0) {
+ rv = (*ss->stuff)(ss, "0", 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ while (--zerowidth >= 0) {
+ rv = (*ss->stuff)(ss, "0", 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ rv = (*ss->stuff)(ss, src, (JSUint32)srclen);
+ if (rv < 0) {
+ return rv;
+ }
+ while (--rightspaces >= 0) {
+ rv = (*ss->stuff)(ss, " ", 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ return 0;
+ }
+
+ /*
+ ** Convert a long into its printable form
+ */
+ static int cvt_l(SprintfState *ss, long num, int width, int prec, int radix,
+ int type, int flags, const char *hexp)
+ {
+ char cvtbuf[100];
+ char *cvt;
+ int digits;
+
+ /* according to the man page this needs to happen */
+ if ((prec == 0) && (num == 0)) {
+ return 0;
+ }
+
+ /*
+ ** Converting decimal is a little tricky. In the unsigned case we
+ ** need to stop when we hit 10 digits. In the signed case, we can
+ ** stop when the number is zero.
+ */
+ cvt = cvtbuf + sizeof(cvtbuf);
+ digits = 0;
+ while (num) {
+ int digit = (((unsigned long)num) % radix) & 0xF;
+ *--cvt = hexp[digit];
+ digits++;
+ num = (long)(((unsigned long)num) / radix);
+ }
+ if (digits == 0) {
+ *--cvt = '0';
+ digits++;
+ }
+
+ /*
+ ** Now that we have the number converted without its sign, deal with
+ ** the sign and zero padding.
+ */
+ return fill_n(ss, cvt, digits, width, prec, type, flags);
+ }
+
+ /*
+ ** Convert a 64-bit integer into its printable form
+ */
+ static int cvt_ll(SprintfState *ss, JSInt64 num, int width, int prec, int radix,
+ int type, int flags, const char *hexp)
+ {
+ char cvtbuf[100];
+ char *cvt;
+ int digits;
+ JSInt64 rad;
+
+ /* according to the man page this needs to happen */
+ if ((prec == 0) && (JSLL_IS_ZERO(num))) {
+ return 0;
+ }
+
+ /*
+ ** Converting decimal is a little tricky. In the unsigned case we
+ ** need to stop when we hit 10 digits. In the signed case, we can
+ ** stop when the number is zero.
+ */
+ JSLL_I2L(rad, radix);
+ cvt = cvtbuf + sizeof(cvtbuf);
+ digits = 0;
+ while (!JSLL_IS_ZERO(num)) {
+ JSInt32 digit;
+ JSInt64 quot, rem;
+ JSLL_UDIVMOD(", &rem, num, rad);
+ JSLL_L2I(digit, rem);
+ *--cvt = hexp[digit & 0xf];
+ digits++;
+ num = quot;
+ }
+ if (digits == 0) {
+ *--cvt = '0';
+ digits++;
+ }
+
+ /*
+ ** Now that we have the number converted without its sign, deal with
+ ** the sign and zero padding.
+ */
+ return fill_n(ss, cvt, digits, width, prec, type, flags);
+ }
+
+ /*
+ ** Convert a double precision floating point number into its printable
+ ** form.
+ **
+ ** XXX stop using sprintf to convert floating point
+ */
+ static int cvt_f(SprintfState *ss, double d, const char *fmt0, const char *fmt1)
+ {
+ char fin[20];
+ char fout[300];
+ int amount = fmt1 - fmt0;
+
+ JS_ASSERT((amount > 0) && (amount < (int)sizeof(fin)));
+ if (amount >= (int)sizeof(fin)) {
+ /* Totally bogus % command to sprintf. Just ignore it */
+ return 0;
+ }
+ memcpy(fin, fmt0, (size_t)amount);
+ fin[amount] = 0;
+
+ /* Convert floating point using the native sprintf code */
+ #ifdef DEBUG
+ {
+ const char *p = fin;
+ while (*p) {
+ JS_ASSERT(*p != 'L');
+ p++;
+ }
+ }
+ #endif
+ sprintf(fout, fin, d);
+
+ /*
+ ** This assert will catch overflow's of fout, when building with
+ ** debugging on. At least this way we can track down the evil piece
+ ** of calling code and fix it!
+ */
+ JS_ASSERT(strlen(fout) < sizeof(fout));
+
+ return (*ss->stuff)(ss, fout, strlen(fout));
+ }
+
+ /*
+ ** Convert a string into its printable form. "width" is the output
+ ** width. "prec" is the maximum number of characters of "s" to output,
+ ** where -1 means until NUL.
+ */
+ static int cvt_s(SprintfState *ss, const char *s, int width, int prec,
+ int flags)
+ {
+ int slen;
+
+ if (prec == 0)
+ return 0;
+
+ /* Limit string length by precision value */
+ slen = s ? strlen(s) : 6;
+ if (prec > 0) {
+ if (prec < slen) {
+ slen = prec;
+ }
+ }
+
+ /* and away we go */
+ return fill2(ss, s ? s : "(null)", slen, width, flags);
+ }
+
+ /*
+ ** BuildArgArray stands for Numbered Argument list Sprintf
+ ** for example,
+ ** fmp = "%4$i, %2$d, %3s, %1d";
+ ** the number must start from 1, and no gap among them
+ */
+
+ static struct NumArgState* BuildArgArray( const char *fmt, va_list ap, int* rv, struct NumArgState* nasArray )
+ {
+ int number = 0, cn = 0, i;
+ const char *p;
+ char c;
+ struct NumArgState *nas;
+
+
+ /*
+ ** first pass:
+ ** detemine how many legal % I have got, then allocate space
+ */
+
+ p = fmt;
+ *rv = 0;
+ i = 0;
+ while( ( c = *p++ ) != 0 ){
+ if( c != '%' )
+ continue;
+ if( ( c = *p++ ) == '%' ) /* skip %% case */
+ continue;
+
+ while( c != 0 ){
+ if( c > '9' || c < '0' ){
+ if( c == '$' ){ /* numbered argument csae */
+ if( i > 0 ){
+ *rv = -1;
+ return NULL;
+ }
+ number++;
+ } else { /* non-numbered argument case */
+ if( number > 0 ){
+ *rv = -1;
+ return NULL;
+ }
+ i = 1;
+ }
+ break;
+ }
+
+ c = *p++;
+ }
+ }
+
+ if( number == 0 ){
+ return NULL;
+ }
+
+
+ if( number > NAS_DEFAULT_NUM ){
+ nas = (struct NumArgState*)malloc( number * sizeof( struct NumArgState ) );
+ if( !nas ){
+ *rv = -1;
+ return NULL;
+ }
+ } else {
+ nas = nasArray;
+ }
+
+ for( i = 0; i < number; i++ ){
+ nas[i].type = TYPE_UNKNOWN;
+ }
+
+
+ /*
+ ** second pass:
+ ** set nas[].type
+ */
+
+ p = fmt;
+ while( ( c = *p++ ) != 0 ){
+ if( c != '%' ) continue;
+ c = *p++;
+ if( c == '%' ) continue;
+
+ cn = 0;
+ while( c && c != '$' ){ /* should improve error check later */
+ cn = cn*10 + c - '0';
+ c = *p++;
+ }
+
+ if( !c || cn < 1 || cn > number ){
+ *rv = -1;
+ break;
+ }
+
+ /* nas[cn] starts from 0, and make sure nas[cn].type is not assigned */
+ cn--;
+ if( nas[cn].type != TYPE_UNKNOWN )
+ continue;
+
+ c = *p++;
+
+ /* width */
+ if (c == '*') {
+ /* not supported feature, for the argument is not numbered */
+ *rv = -1;
+ break;
+ }
+
+ while ((c >= '0') && (c <= '9')) {
+ c = *p++;
+ }
+
+ /* precision */
+ if (c == '.') {
+ c = *p++;
+ if (c == '*') {
+ /* not supported feature, for the argument is not numbered */
+ *rv = -1;
+ break;
+ }
+
+ while ((c >= '0') && (c <= '9')) {
+ c = *p++;
+ }
+ }
+
+ /* size */
+ nas[cn].type = TYPE_INTN;
+ if (c == 'h') {
+ nas[cn].type = TYPE_INT16;
+ c = *p++;
+ } else if (c == 'L') {
+ /* XXX not quite sure here */
+ nas[cn].type = TYPE_INT64;
+ c = *p++;
+ } else if (c == 'l') {
+ nas[cn].type = TYPE_INT32;
+ c = *p++;
+ if (c == 'l') {
+ nas[cn].type = TYPE_INT64;
+ c = *p++;
+ }
+ }
+
+ /* format */
+ switch (c) {
+ case 'd':
+ case 'c':
+ case 'i':
+ case 'o':
+ case 'u':
+ case 'x':
+ case 'X':
+ break;
+
+ case 'e':
+ case 'f':
+ case 'g':
+ nas[ cn ].type = TYPE_DOUBLE;
+ break;
+
+ case 'p':
+ /* XXX should use cpp */
+ if (sizeof(void *) == sizeof(JSInt32)) {
+ nas[ cn ].type = TYPE_UINT32;
+ } else if (sizeof(void *) == sizeof(JSInt64)) {
+ nas[ cn ].type = TYPE_UINT64;
+ } else if (sizeof(void *) == sizeof(JSIntn)) {
+ nas[ cn ].type = TYPE_UINTN;
+ } else {
+ nas[ cn ].type = TYPE_UNKNOWN;
+ }
+ break;
+
+ case 'C':
+ case 'S':
+ case 'E':
+ case 'G':
+ /* XXX not supported I suppose */
+ JS_ASSERT(0);
+ nas[ cn ].type = TYPE_UNKNOWN;
+ break;
+
+ case 's':
+ nas[ cn ].type = TYPE_STRING;
+ break;
+
+ case 'n':
+ nas[ cn ].type = TYPE_INTSTR;
+ break;
+
+ default:
+ JS_ASSERT(0);
+ nas[ cn ].type = TYPE_UNKNOWN;
+ break;
+ }
+
+ /* get a legal para. */
+ if( nas[ cn ].type == TYPE_UNKNOWN ){
+ *rv = -1;
+ break;
+ }
+ }
+
+
+ /*
+ ** third pass
+ ** fill the nas[cn].ap
+ */
+
+ if( *rv < 0 ){
+ if( nas != nasArray )
+ free( nas );
+ return NULL;
+ }
+
+ cn = 0;
+ while( cn < number ){
+ if( nas[cn].type == TYPE_UNKNOWN ){
+ cn++;
+ continue;
+ }
+
+ VARARGS_ASSIGN(nas[cn].ap, ap);
+
+ switch( nas[cn].type ){
+ case TYPE_INT16:
+ case TYPE_UINT16:
+ case TYPE_INTN:
+ case TYPE_UINTN: (void)va_arg( ap, JSIntn ); break;
+
+ case TYPE_INT32: (void)va_arg( ap, JSInt32 ); break;
+
+ case TYPE_UINT32: (void)va_arg( ap, JSUint32 ); break;
+
+ case TYPE_INT64: (void)va_arg( ap, JSInt64 ); break;
+
+ case TYPE_UINT64: (void)va_arg( ap, JSUint64 ); break;
+
+ case TYPE_STRING: (void)va_arg( ap, char* ); break;
+
+ case TYPE_INTSTR: (void)va_arg( ap, JSIntn* ); break;
+
+ case TYPE_DOUBLE: (void)va_arg( ap, double ); break;
+
+ default:
+ if( nas != nasArray )
+ free( nas );
+ *rv = -1;
+ return NULL;
+ }
+
+ cn++;
+ }
+
+
+ return nas;
+ }
+
+ /*
+ ** The workhorse sprintf code.
+ */
+ static int dosprintf(SprintfState *ss, const char *fmt, va_list ap)
+ {
+ char c;
+ int flags, width, prec, radix, type;
+ union {
+ char ch;
+ int i;
+ long l;
+ JSInt64 ll;
+ double d;
+ const char *s;
+ int *ip;
+ } u;
+ const char *fmt0;
+ static char *hex = "0123456789abcdef";
+ static char *HEX = "0123456789ABCDEF";
+ char *hexp;
+ int rv, i;
+ struct NumArgState *nas = NULL;
+ struct NumArgState nasArray[ NAS_DEFAULT_NUM ];
+ char pattern[20];
+ const char *dolPt = NULL; /* in "%4$.2f", dolPt will poiont to . */
+
+
+ /*
+ ** build an argument array, IF the fmt is numbered argument
+ ** list style, to contain the Numbered Argument list pointers
+ */
+
+ nas = BuildArgArray( fmt, ap, &rv, nasArray );
+ if( rv < 0 ){
+ /* the fmt contains error Numbered Argument format, jliu@netscape.com */
+ JS_ASSERT(0);
+ return rv;
+ }
+
+ while ((c = *fmt++) != 0) {
+ if (c != '%') {
+ rv = (*ss->stuff)(ss, fmt - 1, 1);
+ if (rv < 0) {
+ return rv;
+ }
+ continue;
+ }
+ fmt0 = fmt - 1;
+
+ /*
+ ** Gobble up the % format string. Hopefully we have handled all
+ ** of the strange cases!
+ */
+ flags = 0;
+ c = *fmt++;
+ if (c == '%') {
+ /* quoting a % with %% */
+ rv = (*ss->stuff)(ss, fmt - 1, 1);
+ if (rv < 0) {
+ return rv;
+ }
+ continue;
+ }
+
+ if( nas != NULL ){
+ /* the fmt contains the Numbered Arguments feature */
+ i = 0;
+ while( c && c != '$' ){ /* should imporve error check later */
+ i = ( i * 10 ) + ( c - '0' );
+ c = *fmt++;
+ }
+
+ if( nas[i-1].type == TYPE_UNKNOWN ){
+ if( nas && ( nas != nasArray ) )
+ free( nas );
+ return -1;
+ }
+
+ ap = nas[i-1].ap;
+ dolPt = fmt;
+ c = *fmt++;
+ }
+
+ /*
+ * Examine optional flags. Note that we do not implement the
+ * '#' flag of sprintf(). The ANSI C spec. of the '#' flag is
+ * somewhat ambiguous and not ideal, which is perhaps why
+ * the various sprintf() implementations are inconsistent
+ * on this feature.
+ */
+ while ((c == '-') || (c == '+') || (c == ' ') || (c == '0')) {
+ if (c == '-') flags |= FLAG_LEFT;
+ if (c == '+') flags |= FLAG_SIGNED;
+ if (c == ' ') flags |= FLAG_SPACED;
+ if (c == '0') flags |= FLAG_ZEROS;
+ c = *fmt++;
+ }
+ if (flags & FLAG_SIGNED) flags &= ~FLAG_SPACED;
+ if (flags & FLAG_LEFT) flags &= ~FLAG_ZEROS;
+
+ /* width */
+ if (c == '*') {
+ c = *fmt++;
+ width = va_arg(ap, int);
+ } else {
+ width = 0;
+ while ((c >= '0') && (c <= '9')) {
+ width = (width * 10) + (c - '0');
+ c = *fmt++;
+ }
+ }
+
+ /* precision */
+ prec = -1;
+ if (c == '.') {
+ c = *fmt++;
+ if (c == '*') {
+ c = *fmt++;
+ prec = va_arg(ap, int);
+ } else {
+ prec = 0;
+ while ((c >= '0') && (c <= '9')) {
+ prec = (prec * 10) + (c - '0');
+ c = *fmt++;
+ }
+ }
+ }
+
+ /* size */
+ type = TYPE_INTN;
+ if (c == 'h') {
+ type = TYPE_INT16;
+ c = *fmt++;
+ } else if (c == 'L') {
+ /* XXX not quite sure here */
+ type = TYPE_INT64;
+ c = *fmt++;
+ } else if (c == 'l') {
+ type = TYPE_INT32;
+ c = *fmt++;
+ if (c == 'l') {
+ type = TYPE_INT64;
+ c = *fmt++;
+ }
+ }
+
+ /* format */
+ hexp = hex;
+ switch (c) {
+ case 'd': case 'i': /* decimal/integer */
+ radix = 10;
+ goto fetch_and_convert;
+
+ case 'o': /* octal */
+ radix = 8;
+ type |= 1;
+ goto fetch_and_convert;
+
+ case 'u': /* unsigned decimal */
+ radix = 10;
+ type |= 1;
+ goto fetch_and_convert;
+
+ case 'x': /* unsigned hex */
+ radix = 16;
+ type |= 1;
+ goto fetch_and_convert;
+
+ case 'X': /* unsigned HEX */
+ radix = 16;
+ hexp = HEX;
+ type |= 1;
+ goto fetch_and_convert;
+
+ fetch_and_convert:
+ switch (type) {
+ case TYPE_INT16:
+ u.l = va_arg(ap, int);
+ if (u.l < 0) {
+ u.l = -u.l;
+ flags |= FLAG_NEG;
+ }
+ goto do_long;
+ case TYPE_UINT16:
+ u.l = va_arg(ap, int) & 0xffff;
+ goto do_long;
+ case TYPE_INTN:
+ u.l = va_arg(ap, int);
+ if (u.l < 0) {
+ u.l = -u.l;
+ flags |= FLAG_NEG;
+ }
+ goto do_long;
+ case TYPE_UINTN:
+ u.l = (long)va_arg(ap, unsigned int);
+ goto do_long;
+
+ case TYPE_INT32:
+ u.l = va_arg(ap, JSInt32);
+ if (u.l < 0) {
+ u.l = -u.l;
+ flags |= FLAG_NEG;
+ }
+ goto do_long;
+ case TYPE_UINT32:
+ u.l = (long)va_arg(ap, JSUint32);
+ do_long:
+ rv = cvt_l(ss, u.l, width, prec, radix, type, flags, hexp);
+ if (rv < 0) {
+ return rv;
+ }
+ break;
+
+ case TYPE_INT64:
+ u.ll = va_arg(ap, JSInt64);
+ if (!JSLL_GE_ZERO(u.ll)) {
+ JSLL_NEG(u.ll, u.ll);
+ flags |= FLAG_NEG;
+ }
+ goto do_longlong;
+ case TYPE_UINT64:
+ u.ll = va_arg(ap, JSUint64);
+ do_longlong:
+ rv = cvt_ll(ss, u.ll, width, prec, radix, type, flags, hexp);
+ if (rv < 0) {
+ return rv;
+ }
+ break;
+ }
+ break;
+
+ case 'e':
+ case 'E':
+ case 'f':
+ case 'g':
+ u.d = va_arg(ap, double);
+ if( nas != NULL ){
+ i = fmt - dolPt;
+ if( i < (int)sizeof( pattern ) ){
+ pattern[0] = '%';
+ memcpy( &pattern[1], dolPt, (size_t)i );
+ rv = cvt_f(ss, u.d, pattern, &pattern[i+1] );
+ }
+ } else
+ rv = cvt_f(ss, u.d, fmt0, fmt);
+
+ if (rv < 0) {
+ return rv;
+ }
+ break;
+
+ case 'c':
+ u.ch = va_arg(ap, int);
+ if ((flags & FLAG_LEFT) == 0) {
+ while (width-- > 1) {
+ rv = (*ss->stuff)(ss, " ", 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ }
+ rv = (*ss->stuff)(ss, &u.ch, 1);
+ if (rv < 0) {
+ return rv;
+ }
+ if (flags & FLAG_LEFT) {
+ while (width-- > 1) {
+ rv = (*ss->stuff)(ss, " ", 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ }
+ break;
+
+ case 'p':
+ if (sizeof(void *) == sizeof(JSInt32)) {
+ type = TYPE_UINT32;
+ } else if (sizeof(void *) == sizeof(JSInt64)) {
+ type = TYPE_UINT64;
+ } else if (sizeof(void *) == sizeof(int)) {
+ type = TYPE_UINTN;
+ } else {
+ JS_ASSERT(0);
+ break;
+ }
+ radix = 16;
+ goto fetch_and_convert;
+
+ #if 0
+ case 'C':
+ case 'S':
+ case 'E':
+ case 'G':
+ /* XXX not supported I suppose */
+ JS_ASSERT(0);
+ break;
+ #endif
+
+ case 's':
+ u.s = va_arg(ap, const char*);
+ rv = cvt_s(ss, u.s, width, prec, flags);
+ if (rv < 0) {
+ return rv;
+ }
+ break;
+
+ case 'n':
+ u.ip = va_arg(ap, int*);
+ if (u.ip) {
+ *u.ip = ss->cur - ss->base;
+ }
+ break;
+
+ default:
+ /* Not a % token after all... skip it */
+ #if 0
+ JS_ASSERT(0);
+ #endif
+ rv = (*ss->stuff)(ss, "%", 1);
+ if (rv < 0) {
+ return rv;
+ }
+ rv = (*ss->stuff)(ss, fmt - 1, 1);
+ if (rv < 0) {
+ return rv;
+ }
+ }
+ }
+
+ /* Stuff trailing NUL */
+ rv = (*ss->stuff)(ss, "\0", 1);
+
+ if( nas && ( nas != nasArray ) ){
+ free( nas );
+ }
+
+ return rv;
+ }
+
+ /************************************************************************/
+
+ static int FuncStuff(SprintfState *ss, const char *sp, JSUint32 len)
+ {
+ int rv;
+
+ rv = (*ss->func)(ss->arg, sp, len);
+ if (rv < 0) {
+ return rv;
+ }
+ ss->maxlen += len;
+ return 0;
+ }
+
+ JS_PUBLIC_API(JSUint32) JS_sxprintf(JSStuffFunc func, void *arg,
+ const char *fmt, ...)
+ {
+ va_list ap;
+ int rv;
+
+ va_start(ap, fmt);
+ rv = JS_vsxprintf(func, arg, fmt, ap);
+ va_end(ap);
+ return rv;
+ }
+
+ JS_PUBLIC_API(JSUint32) JS_vsxprintf(JSStuffFunc func, void *arg,
+ const char *fmt, va_list ap)
+ {
+ SprintfState ss;
+ int rv;
+
+ ss.stuff = FuncStuff;
+ ss.func = func;
+ ss.arg = arg;
+ ss.maxlen = 0;
+ rv = dosprintf(&ss, fmt, ap);
+ return (rv < 0) ? (JSUint32)-1 : ss.maxlen;
+ }
+
+ /*
+ ** Stuff routine that automatically grows the malloc'd output buffer
+ ** before it overflows.
+ */
+ static int GrowStuff(SprintfState *ss, const char *sp, JSUint32 len)
+ {
+ ptrdiff_t off;
+ char *newbase;
+ JSUint32 newlen;
+
+ off = ss->cur - ss->base;
+ if (off + len >= ss->maxlen) {
+ /* Grow the buffer */
+ newlen = ss->maxlen + ((len > 32) ? len : 32);
+ if (ss->base) {
+ newbase = (char*) realloc(ss->base, newlen);
+ } else {
+ newbase = (char*) malloc(newlen);
+ }
+ if (!newbase) {
+ /* Ran out of memory */
+ return -1;
+ }
+ ss->base = newbase;
+ ss->maxlen = newlen;
+ ss->cur = ss->base + off;
+ }
+
+ /* Copy data */
+ while (len) {
+ --len;
+ *ss->cur++ = *sp++;
+ }
+ JS_ASSERT((JSUint32)(ss->cur - ss->base) <= ss->maxlen);
+ return 0;
+ }
+
+ /*
+ ** sprintf into a malloc'd buffer
+ */
+ JS_PUBLIC_API(char *) JS_smprintf(const char *fmt, ...)
+ {
+ va_list ap;
+ char *rv;
+
+ va_start(ap, fmt);
+ rv = JS_vsmprintf(fmt, ap);
+ va_end(ap);
+ return rv;
+ }
+
+ /*
+ ** Free memory allocated, for the caller, by JS_smprintf
+ */
+ JS_PUBLIC_API(void) JS_smprintf_free(char *mem)
+ {
+ free(mem);
+ }
+
+ JS_PUBLIC_API(char *) JS_vsmprintf(const char *fmt, va_list ap)
+ {
+ SprintfState ss;
+ int rv;
+
+ ss.stuff = GrowStuff;
+ ss.base = 0;
+ ss.cur = 0;
+ ss.maxlen = 0;
+ rv = dosprintf(&ss, fmt, ap);
+ if (rv < 0) {
+ if (ss.base) {
+ free(ss.base);
+ }
+ return 0;
+ }
+ return ss.base;
+ }
+
+ /*
+ ** Stuff routine that discards overflow data
+ */
+ static int LimitStuff(SprintfState *ss, const char *sp, JSUint32 len)
+ {
+ JSUint32 limit = ss->maxlen - (ss->cur - ss->base);
+
+ if (len > limit) {
+ len = limit;
+ }
+ while (len) {
+ --len;
+ *ss->cur++ = *sp++;
+ }
+ return 0;
+ }
+
+ /*
+ ** sprintf into a fixed size buffer. Make sure there is a NUL at the end
+ ** when finished.
+ */
+ JS_PUBLIC_API(JSUint32) JS_snprintf(char *out, JSUint32 outlen, const char *fmt, ...)
+ {
+ va_list ap;
+ int rv;
+
+ JS_ASSERT((JSInt32)outlen > 0);
+ if ((JSInt32)outlen <= 0) {
+ return 0;
+ }
+
+ va_start(ap, fmt);
+ rv = JS_vsnprintf(out, outlen, fmt, ap);
+ va_end(ap);
+ return rv;
+ }
+
+ JS_PUBLIC_API(JSUint32) JS_vsnprintf(char *out, JSUint32 outlen,const char *fmt,
+ va_list ap)
+ {
+ SprintfState ss;
+ JSUint32 n;
+
+ JS_ASSERT((JSInt32)outlen > 0);
+ if ((JSInt32)outlen <= 0) {
+ return 0;
+ }
+
+ ss.stuff = LimitStuff;
+ ss.base = out;
+ ss.cur = out;
+ ss.maxlen = outlen;
+ (void) dosprintf(&ss, fmt, ap);
+
+ /* If we added chars, and we didn't append a null, do it now. */
+ if( (ss.cur != ss.base) && (ss.cur[-1] != '\0') )
+ ss.cur[-1] = '\0';
+
+ n = ss.cur - ss.base;
+ return n ? n - 1 : n;
+ }
+
+ JS_PUBLIC_API(char *) JS_sprintf_append(char *last, const char *fmt, ...)
+ {
+ va_list ap;
+ char *rv;
+
+ va_start(ap, fmt);
+ rv = JS_vsprintf_append(last, fmt, ap);
+ va_end(ap);
+ return rv;
+ }
+
+ JS_PUBLIC_API(char *) JS_vsprintf_append(char *last, const char *fmt, va_list ap)
+ {
+ SprintfState ss;
+ int rv;
+
+ ss.stuff = GrowStuff;
+ if (last) {
+ int lastlen = strlen(last);
+ ss.base = last;
+ ss.cur = last + lastlen;
+ ss.maxlen = lastlen;
+ } else {
+ ss.base = 0;
+ ss.cur = 0;
+ ss.maxlen = 0;
+ }
+ rv = dosprintf(&ss, fmt, ap);
+ if (rv < 0) {
+ if (ss.base) {
+ free(ss.base);
+ }
+ return 0;
+ }
+ return ss.base;
+ }
+
|
