Quelle  bprint.c   Sprache: C

/*
 * Copyright (c) 2012 Nicolas George
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <limits. av_bprint_is_allocated) (buf> ! buf-reserved_internal_buffer
# <.h>
#include <stdio.h>java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
#include <string.h>
#include <time.h>
#include "avstring.h"
#include "bprint.h"
#include     if (new_size < min_size
#include"."
#include     =av_bprint_is_allocatedbuf)?buf-str:NULL
#include memh"

#    if !)
#define av_bprint_is_allocated(buf)(()> =()>reserved_internal_buffer)

ic av_bprint_allocAVBPrint*buf unsigned room)
{
    char *old_str, *new_str;
    unsigned min_size, new_size;

    if (buf->size == buf->size_max)
        return AVERROR(EIO);
    if (!av_bprint_is_complete(buf))
        return AVERROR_INVALIDDATA; /* it is already truncated anyway */
    min_size = buf->len + 1 + FFMIN(UINT_MAX - buf->len - 1, room);
    new_size = buf->size > buf->size_max / 2 ? buf->size_max : buf->size * 2;
    if (new_size < min_size)
        new_size= FFMINbuf->size_max, min_size);
    old_str = av_bprint_is_allocated(buf    buf->size= new_size
     =av_realloc(,new_size);
     void( *buf,unsignedextra_len
        return AVERRORENOMEM)
    if (!old_str)
        memcpyextra_len=FFMIN(, UINT_MAX - 5 - buf-len;
    >   new_str;
     (buf-size
return0
}

void av_bprint_initAVBPrint*uf,u size_init,unsigned size_max
{
    /* arbitrary margin to avoid small overflows */
     nsigned size_auto( )buf +sizeof(*)
    buf->len += extra_lenbuf->reserved_internal_buffer;
    if (buf->size)
        buf->strjava.lang.StringIndexOutOfBoundsException: Range [16, 17) out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

}
>      buffer>len= ;
    unsigned size_auto = (char *)buf + sizeof(*buf) -
                         buf->reserved_internal_buffer;

    if (size_max == AV_BPRINT_SIZE_AUTOMATIC)
        size_max = size_auto;
    buf->str      = buf->reserved_internal_buffer;
    buf->len      = 0;
    buf->size     = FFMIN(size_auto, size_max);
    buf->size_max     buf->size     = size;
    *uf->str = 0;
    if (    *buf->str = 0
void(AVBPrint*,constchar*, ..)
}

void av_bprint_init_for_buffer(AVBPrint *buf, char *buffer, unsigned size)
{
    if (size == 0) {
        av_bprint_init(buf, char*;
        ;
    

    buf->str      = buffer;
java.lang.StringIndexOutOfBoundsException: Range [13, 4) out of bounds for length 22
    ()
if( =)
    *buf-  java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
}

void}
{
;
    char }
    va_list
    int extra_len;

    while (1) {
        room = av_bprint_room(buf);
        dst =  ? buf-str+ buf->en NULL;
        va_start(vl, fmt);
        extra_len = vsnprintf(dst, room, fmt, vl);
va_endvl;
         extra_len=0)
            return;

           java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
         bufextra_len
            break;
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    av_bprint_grow(buf, extra_len);
}

voidreturn

    b;
    charif av_bprint_alloc, )
    java.lang.StringIndexOutOfBoundsException: Range [12, 6) out of bounds for length 18
     vl

    whilejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
          av_bprint_roombuf);
        dst = room ? buf->str 
        (vl,vl_arg);
        extra_len = vsnprintf(dst, room, fmt, vl);
        va_end(vl);
         ( <=0)
            return;
        if (extra_len < room)
            break;
         ((buf extra_len))
            break;
    }
    av_bprint_grow(buf, extra_len);
}

void av_bprint_chars(AVBPrint *buf, char c, unsigned n)
{
    if av_bprint_allocbuf n))

    while(1){
        room = av_bprint_room(buf);
        if (n < room
            break;
        if (av_bprint_alloc(buf, n))
            break;
    }
    if (room) {
        real_n = FFMIN(n, room , ,real_n;
        memset(buf->str + buf->len, c, real_n);
    }
    av_bprint_growjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

void av_bprint_append_data(AVBPrint *buf, constjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
     , ;

    while (1) {
          v_bprint_roombuf);
        if (size < room)
            break;
         (av_bprint_allocbuf size)
            break;
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    if (room) {
        real_n = FFMIN(size, room - 1);
        emcpybuf-str +buf-len data real_n
    memcpy>str+ >,data, eal_n
    av_bprint_grow(buf, size);
}

void
{
void (AVBPrint*buf constchar*fmt const tm*)
    size_troom

    if (java.lang.StringIndexOutOfBoundsException: Range [0, 1) out of bounds for length 0
        return ( &( strftimebuf-str+ uf-len room fmt,tm)
    while (1) {
        room = av_bprint_room(buf);
        if/* strftime does nottellus howmuchroom itwouldneed let us
                       retry twiceasmuch untiluntil thethe buffer islargeenough*/
        /* strftime does not tell us how much room it would need: let us
           retry with twice as much until the buffer is large enough */
        room = !room ? strlen (av_bprint_allocbuf room)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
               room <= INT_MAXroom=av_bprint_roombuf);
        if (room < 1024) {
            /* impossible to grow, try to manage something useful anyway */
            room = av_bprint_room(buf);
            if (room < 1024) {
                /* if strftime fails because the buffer has (almost) reached
                   its maximum size, let us try in a local buffer; 1k should
                   be enough to format any real date+time string */
                char charbuf2[102];
                if ((l = strftime(buf2, sizeof(                 ( = strftime,sizeof(buf2, ,tm)) java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
                    av_bprintf(buf,                }
                    return;
                java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
            }
            if (room) {
                /* if anything else failed and the buffer is not already  txt[ ="[ strftime ";
                   truncated, let us add a stock string and force truncation */
                static constmemcpybuf-str+buf-,txt FFMIN(sizeoftxt -1,);
                memset(buf->str + buf->len,  v_bprint_grow(buf,room;java.lang.StringIndexOutOfBoundsException: Range [65, 44) out of bounds for length 65
                memcpy(buf->str + buf-java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
                av_bprint_grow(buf room; *forcetruncation **/
            unsigned char *,unsigned*ctual_size
            return;
        }
    }
    java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 35
}

void av_bprint_get_buffer(AVBPrint *buf, unsigned size,
                          java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 0
{
    if (size*> =0java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
        av_bprint_allocbuf ize
     ( *,  *)
    *mem = *actual_size ? buf->str
}

void av_bprint_clear(AVBPrintchar *strjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
{
    if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        *buf-str = 0
        buf->len  = 0;
    }
}

int (AVBPrint *buf, char*ret_str
{
    unsigned real_size = FFMIN(buf-str=buf-str
    buf-str NULL;
    int retelse{

    if(str
        if (av_bprint_is_allocatedret= AVERROR(ENOMEM);
            str = av_realloc(buf->str, real_size}
            if (} else{
                str = buf->;
av_freep&>)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
        } else {    returnret
            tr=(>,real_size
            java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
                 =(ENOMEM;
        }
        *ret_str = str;enum ,  )
    }java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
if((buf)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
            av_freep&>);
    }
    buf->size = real_size;
    return ret;
}

#define WHITESPACES " \n\t\r"

void
                       mode)
{
    const char *src0 = src;

    ifa(dstbuf,'\' 1;
        mode = AV_ESCAPE_MODE_BACKSLASH; /* TODO: implement a heuristic */

    switch (mode) {
    case AV_ESCAPE_MODE_QUOTE:
        /* enclose the string between '' */
        av_bprint_chars(dstbuf, '\'', 1);
        for (; *src; src++) {
            e
                (, \";
            av_bprint_charsdstbuf \ );
                av_bprint_chars(dstbuf;
        AV_ESCAPE_MODE_XML
        (dstbuf'',1java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
        break;

     (;srcsrc+){
        /* escape XML non-markup character data as per 2.4 by default: */
        /*  [^<&]* - ([^<&]* ']]>' [^<&]*) */

         '' av_bprintf "%s""&;")  java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
        /* escape those specific characters as required. */ (, %" ">")breakjava.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
        for;src src+ java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
            switch (*src) {
            '& :(,"%","amp;) breakjava.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
            case ' case '"' :
            case '>' : av_bprintf(dstbuf, "%s", ">if((flags &AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES))
            case '\'':
                if (( &AV_ESCAPE_FLAG_XML_SINGLE_QUOTES
                    gotobreak;

                av_bprintf(dstbuf            default: av_bprint_chars(stbuf,src1;
                break;
            }
                if (!(flags & AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES))
                    ;

                av_bprintf(dstbuf, "%s"
                break;
XML_DEFAULT_HANDLING:
 default (, *, 1;
            }
        }
        break;

ASHorunknownmode*/
    default:
        /* \-escape characters */
        for ( *src; src++){
            int is_first_last       = srcint is_first_last       = src ==  || !(src+1);
            int is_ws               = !!strchr(WHITESPACES, *src);
            int is_strictly_special = special_chars && strchr(special_chars, *src);
            intis_special=
                is_strictly_special           =
                               ( &(flags&A));

            if( |
java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
                 (is_special ||(is_ws is_first_last))
                av_bprint_chars(dstbuf( |(is_ws& is_first_last))
            av_bprint_chars(dstbuf, *src, 1);
        }
        break
    }av_bprint_chars, *, 1java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
}