int vsnprintf(char *buf, int size, const char *fmt, va_list args){
int num;
char *str, *end, c,*s;
int read;
unsigned int spec=0;
str = buf;
end = buf + size;
if (end < buf) {
end = ((void *)-1);
size = end - buf;
}
while (*fmt) {
const char *old_fmt = fmt;
read = format_decode(fmt, &spec);
fmt += read;
if((FORMAT_TYPE(spec))==FORMAT_TYPE_NONE){
int copy = read;
if (str < end) {
if (copy > end - str)
copy = end - str;
memcpy(str, old_fmt, copy);
}
str += read;
}else if(spec&FORMAT_FLAG_WIDTH){
//do nothing
}else if(FORMAT_TYPE(spec)==FORMAT_TYPE_CHAR){
c = (unsigned char) va_arg(args, int);
if (str < end)
*str = c;
++str;
}else if(FORMAT_TYPE(spec)==FORMAT_TYPE_STR){
return ;
} /* wav_w64_analyze */
/*==============================================================================
*/
typedef struct
{ int ID ;
const char *name ;
} WAV_FORMAT_DESC ;
#define STR(x) #x
#define FORMAT_TYPE(x) { x, STR (x) }
static WAV_FORMAT_DESC wave_descs [] =
{ FORMAT_TYPE (WAVE_FORMAT_PCM),
FORMAT_TYPE (WAVE_FORMAT_MS_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_IEEE_FLOAT),
FORMAT_TYPE (WAVE_FORMAT_VSELP),
FORMAT_TYPE (WAVE_FORMAT_IBM_CVSD),
FORMAT_TYPE (WAVE_FORMAT_ALAW),
FORMAT_TYPE (WAVE_FORMAT_MULAW),
FORMAT_TYPE (WAVE_FORMAT_OKI_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_IMA_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_MEDIASPACE_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_SIERRA_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_G723_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_DIGISTD),
FORMAT_TYPE (WAVE_FORMAT_DIGIFIX),
FORMAT_TYPE (WAVE_FORMAT_DIALOGIC_OKI_ADPCM),
FORMAT_TYPE (WAVE_FORMAT_MEDIAVISION_ADPCM),
