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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /*
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- /*
- ** Portable safe sprintf code.
- **
- ** Author: Kipp E.B. Hickman
- */
- #include <stdarg.h>
- #include <stddef.h>
- #include <stdio.h>
- #include <string.h>
- #include "primpl.h"
- #include "prprf.h"
- #include "prlong.h"
- #include "prlog.h"
- #include "prmem.h"
-
- /*
- ** Note: on some platforms va_list is defined as an array,
- ** and requires array notation.
- */
- #if defined(MACLINUX) || defined(WIN16)
- #define VARARGS_ASSIGN(foo, bar) foo[0] = bar[0]
- #else
- #define VARARGS_ASSIGN(foo, bar) (foo) = (bar)
- #endif /*MACLINUX*/
-
- /*
- ** WARNING: This code may *NOT* call PR_LOG (because PR_LOG calls it)
- */
-
- /*
- ** XXX This needs to be internationalized!
- */
-
- typedef struct SprintfStateStr SprintfState;
-
- struct SprintfStateStr {
- int (*stuff)(SprintfState *ss, const char *sp, PRUint32 len);
-
- char *base;
- char *cur;
- PRUint32 maxlen;
-
- int (*func)(void *arg, const char *sp, PRUint32 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 */
- };
-
- static PRBool l10n_debug_init = PR_FALSE;
- static PRBool l10n_debug = PR_FALSE;
-
- #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 _LEFT 0x1
- #define _SIGNED 0x2
- #define _SPACED 0x4
- #define _ZEROS 0x8
- #define _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 & _LEFT) == 0)) { /* Right adjusting */
- if (flags & _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, srclen);
- if (rv < 0) {
- return rv;
- }
-
- if ((width > 0) && ((flags & _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 & _NEG) {
- sign = '-';
- signwidth = 1;
- } else if (flags & _SIGNED) {
- sign = '+';
- signwidth = 1;
- } else if (flags & _SPACED) {
- sign = ' ';
- signwidth = 1;
- }
- }
- cvtwidth = signwidth + srclen;
-
- if (prec > 0) {
- if (prec > srclen) {
- precwidth = prec - srclen; /* Need zero filling */
- cvtwidth += precwidth;
- }
- }
-
- if ((flags & _ZEROS) && (prec < 0)) {
- if (width > cvtwidth) {
- zerowidth = width - cvtwidth; /* Zero filling */
- cvtwidth += zerowidth;
- }
- }
-
- if (flags & _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, 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, PRInt64 num, int width, int prec, int radix,
- int type, int flags, const char *hexp)
- {
- char cvtbuf[100];
- char *cvt;
- int digits;
- PRInt64 rad;
-
- /* according to the man page this needs to happen */
- if ((prec == 0) && (LL_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.
- */
- LL_I2L(rad, radix);
- cvt = cvtbuf + sizeof(cvtbuf);
- digits = 0;
- while (!LL_IS_ZERO(num)) {
- PRInt32 digit;
- PRInt64 quot, rem;
- LL_UDIVMOD(", &rem, num, rad);
- LL_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;
-
- PR_ASSERT((amount > 0) && (amount < sizeof(fin)));
- if (amount >= sizeof(fin)) {
- /* Totally bogus % command to sprintf. Just ignore it */
- return 0;
- }
- memcpy(fin, fmt0, amount);
- fin[amount] = 0;
-
- /* Convert floating point using the native sprintf code */
- #ifdef DEBUG
- {
- const char *p = fin;
- while (*p) {
- PR_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!
- */
- PR_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);
- }
-
- /*
- ** BiuldArgArray 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;
-
-
- /*
- ** set the l10n_debug flag
- ** this routine should be executed only once
- ** 'cause getenv does take time
- */
- if( !l10n_debug_init ){
- l10n_debug_init = PR_TRUE;
- p = getenv( "NETSCAPE_LOCALIZATION_DEBUG" );
- if( ( p != NULL ) && ( *p == '1' ) ){
- l10n_debug = PR_TRUE;
- }
- }
-
-
- /*
- ** 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 == '$' ){ /* numbered argument csae */
- if( i > 0 ){
- *rv = -1;
- if( l10n_debug )
- printf( "either no *OR* all arguments are numbered \"%s\"\n", fmt );
- return NULL;
- }
- number++;
- break;
-
- } else{ /* non-numbered argument case */
- if( number > 0 ){
- if( l10n_debug )
- printf( "either no *OR* all arguments are numbered \"%s\"\n", fmt );
- *rv = -1;
- return NULL;
- }
- i = 1;
- break;
- }
- }
-
- c = *p++;
- }
- }
-
- if( number == 0 ){
- return NULL;
- }
-
-
- if( number > NAS_DEFAULT_NUM ){
- nas = (struct NumArgState*)PR_MALLOC( number * sizeof( struct NumArgState ) );
- if( !nas ){
- *rv = -1;
- if( l10n_debug )
- printf( "PR_MALLOC() error for \"%s\"\n", fmt );
- return NULL;
- }
- } else {
- nas = nasArray;
- }
-
- for( i = 0; i < number; i++ ){
- nas[i].type = TYPE_UNKNOWN;
- }
-
-
- /*
- ** second pass:
- ** set nas[].type
- */
-
- p = fmt;
- while( ( c = *p++ ) != 0 ){
- if( c != '%' ) continue;
- c = *p++;
- if( c == '%' ) continue;
-
- cn = 0;
- while( c && c != '$' ){ /* should imporve error check later */
- cn = cn*10 + c - '0';
- c = *p++;
- }
-
- if( !c || cn < 1 || cn > number ){
- *rv = -1;
- if( l10n_debug )
- printf( "invalid argument number (valid range [1, %d]), \"%s\"\n", number, fmt );
- 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;
- if( l10n_debug )
- printf( "* width specifier not support for numbered arguments \"%s\"\n", fmt );
- break;
- } else {
- while ((c >= '0') && (c <= '9')) {
- c = *p++;
- }
- }
-
- /* precision */
- if (c == '.') {
- c = *p++;
- if (c == '*') {
- /* not supported feature, for the argument is not numbered */
- if( l10n_debug )
- printf( "* precision specifier not support for numbered arguments \"%s\"\n", fmt );
- *rv = -1;
- break;
- } else {
- 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(PRInt32)) {
- nas[ cn ].type = TYPE_UINT32;
- } else if (sizeof(void *) == sizeof(PRInt64)) {
- nas[ cn ].type = TYPE_UINT64;
- } else if (sizeof(void *) == sizeof(PRIntn)) {
- 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 */
- PR_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:
- PR_ASSERT(0);
- nas[ cn ].type = TYPE_UNKNOWN;
- break;
- }
-
- /* get a legal para. */
- if( nas[ cn ].type == TYPE_UNKNOWN ){
- if( l10n_debug )
- printf( "unknown type \"%s\"\n", fmt );
- *rv = -1;
- break;
- }
- }
-
-
- /*
- ** third pass
- ** fill the nas[cn].ap
- */
-
- if( *rv < 0 ){
- if( nas != nasArray )
- PR_DELETE( 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, PRIntn ); break;
-
- case TYPE_INT32: (void)va_arg( ap, PRInt32 ); break;
-
- case TYPE_UINT32: (void)va_arg( ap, PRUint32 ); break;
-
- case TYPE_INT64: (void)va_arg( ap, PRInt64 ); break;
-
- case TYPE_UINT64: (void)va_arg( ap, PRUint64 ); break;
-
- case TYPE_STRING: (void)va_arg( ap, char* ); break;
-
- case TYPE_INTSTR: (void)va_arg( ap, PRIntn* ); break;
-
- case TYPE_DOUBLE: (void)va_arg( ap, double ); break;
-
- default:
- if( nas != nasArray )
- PR_DELETE( 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;
- PRInt64 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$.2f", dolPt will poiont to . */
-
-
- /*
- ** build an argument array, IF the fmt is numbered argument
- ** list style, to contain the Numbered Argument list pointers
- */
-
- nas = BuildArgArray( fmt, ap, &rv, nasArray );
- if( rv < 0 ){
- /* the fmt contains error Numbered Argument format, jliu@netscape.com */
- PR_ASSERT(0);
- return rv;
- }
-
- while ((c = *fmt++) != 0) {
- if (c != '%') {
- rv = (*ss->stuff)(ss, fmt - 1, 1);
- if (rv < 0) {
- return rv;
- }
- continue;
- }
- fmt0 = fmt - 1;
-
- /*
- ** Gobble up the % format string. Hopefully we have handled all
- ** of the strange cases!
- */
- flags = 0;
- c = *fmt++;
- if (c == '%') {
- /* quoting a % with %% */
- rv = (*ss->stuff)(ss, fmt - 1, 1);
- if (rv < 0) {
- return rv;
- }
- continue;
- }
-
- if( nas != NULL ){
- /* the fmt contains the Numbered Arguments feature */
- i = 0;
- while( c && c != '$' ){ /* should imporve error check later */
- i = ( i * 10 ) + ( c - '0' );
- c = *fmt++;
- }
-
- if( nas[i-1].type == TYPE_UNKNOWN ){
- if( l10n_debug )
- printf( "numbered argument type unknown\n" );
- if( nas && ( nas != nasArray ) )
- PR_DELETE( 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 |= _LEFT;
- if (c == '+') flags |= _SIGNED;
- if (c == ' ') flags |= _SPACED;
- if (c == '0') flags |= _ZEROS;
- c = *fmt++;
- }
- if (flags & _SIGNED) flags &= ~_SPACED;
- if (flags & _LEFT) flags &= ~_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 |= _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 |= _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, PRInt32);
- if (u.l < 0) {
- u.l = -u.l;
- flags |= _NEG;
- }
- goto do_long;
- case TYPE_UINT32:
- u.l = (long)va_arg(ap, PRUint32);
- 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, PRInt64);
- if (!LL_GE_ZERO(u.ll)) {
- LL_NEG(u.ll, u.ll);
- flags |= _NEG;
- }
- goto do_longlong;
- case TYPE_UINT64:
- u.ll = va_arg(ap, PRUint64);
- 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 < sizeof( pattern ) ){
- pattern[0] = '%';
- memcpy( &pattern[1], dolPt, 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 & _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 & _LEFT) {
- while (width-- > 1) {
- rv = (*ss->stuff)(ss, " ", 1);
- if (rv < 0) {
- return rv;
- }
- }
- }
- break;
-
- case 'p':
- if (sizeof(void *) == sizeof(PRInt32)) {
- type = TYPE_UINT32;
- } else if (sizeof(void *) == sizeof(PRInt64)) {
- type = TYPE_UINT64;
- } else if (sizeof(void *) == sizeof(int)) {
- type = TYPE_UINTN;
- } else {
- PR_ASSERT(0);
- break;
- }
- radix = 16;
- goto fetch_and_convert;
-
- #if 0
- case 'C':
- case 'S':
- case 'E':
- case 'G':
- /* XXX not supported I suppose */
- PR_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
- PR_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 ) ){
- PR_DELETE( nas );
- }
-
- return rv;
- }
-
- /************************************************************************/
-
- static int FuncStuff(SprintfState *ss, const char *sp, PRUint32 len)
- {
- int rv;
-
- rv = (*ss->func)(ss->arg, sp, len);
- if (rv < 0) {
- return rv;
- }
- ss->maxlen += len;
- return 0;
- }
-
- PR_IMPLEMENT(PRUint32) PR_sxprintf(PRStuffFunc func, void *arg,
- const char *fmt, ...)
- {
- va_list ap;
- int rv;
-
- va_start(ap, fmt);
- rv = PR_vsxprintf(func, arg, fmt, ap);
- va_end(ap);
- return rv;
- }
-
- PR_IMPLEMENT(PRUint32) PR_vsxprintf(PRStuffFunc 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) ? (PRUint32)-1 : ss.maxlen;
- }
-
- /*
- ** Stuff routine that automatically grows the malloc'd output buffer
- ** before it overflows.
- */
- static int GrowStuff(SprintfState *ss, const char *sp, PRUint32 len)
- {
- ptrdiff_t off;
- char *newbase;
- PRUint32 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*) PR_REALLOC(ss->base, newlen);
- } else {
- newbase = (char*) PR_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++;
- }
- PR_ASSERT((PRUint32)(ss->cur - ss->base) <= ss->maxlen);
- return 0;
- }
-
- /*
- ** sprintf into a malloc'd buffer
- */
- PR_IMPLEMENT(char *) PR_smprintf(const char *fmt, ...)
- {
- va_list ap;
- char *rv;
-
- va_start(ap, fmt);
- rv = PR_vsmprintf(fmt, ap);
- va_end(ap);
- return rv;
- }
-
- /*
- ** Free memory allocated, for the caller, by PR_smprintf
- */
- PR_IMPLEMENT(void) PR_smprintf_free(char *mem)
- {
- PR_DELETE(mem);
- }
-
- PR_IMPLEMENT(char *) PR_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) {
- PR_DELETE(ss.base);
- }
- return 0;
- }
- return ss.base;
- }
-
- /*
- ** Stuff routine that discards overflow data
- */
- static int LimitStuff(SprintfState *ss, const char *sp, PRUint32 len)
- {
- PRUint32 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.
- */
- PR_IMPLEMENT(PRUint32) PR_snprintf(char *out, PRUint32 outlen, const char *fmt, ...)
- {
- va_list ap;
- int rv;
-
- PR_ASSERT((PRInt32)outlen > 0);
- if ((PRInt32)outlen <= 0) {
- return 0;
- }
-
- va_start(ap, fmt);
- rv = PR_vsnprintf(out, outlen, fmt, ap);
- va_end(ap);
- return rv;
- }
-
- PR_IMPLEMENT(PRUint32) PR_vsnprintf(char *out, PRUint32 outlen,const char *fmt,
- va_list ap)
- {
- SprintfState ss;
- PRUint32 n;
-
- PR_ASSERT((PRInt32)outlen > 0);
- if ((PRInt32)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) = '\0';
-
- n = ss.cur - ss.base;
- return n ? n - 1 : n;
- }
-
- PR_IMPLEMENT(char *) PR_sprintf_append(char *last, const char *fmt, ...)
- {
- va_list ap;
- char *rv;
-
- va_start(ap, fmt);
- rv = PR_vsprintf_append(last, fmt, ap);
- va_end(ap);
- return rv;
- }
-
- PR_IMPLEMENT(char *) PR_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) {
- PR_DELETE(ss.base);
- }
- return 0;
- }
- return ss.base;
- }
-
-