static void append_to_buffer_valist(char **buff, size_t *buff_size, size_t *offset, const char *fmt, va_list args) {
belle_sip_error_code ret;
size_t prevoffset = *offset;
#ifndef _WIN32
va_list cap;/*copy of our argument list: a va_list cannot be re-used (SIGSEGV on linux 64 bits)*/
va_copy(cap,args);
ret = belle_sip_snprintf_valist(*buff, *buff_size, offset, fmt, cap);
va_end(cap);
#else
ret = belle_sip_snprintf_valist(*buff, *buff_size, offset, fmt, args);
#endif
/*if we are out of memory, we add some size to buffer*/
if (ret == BELLE_SIP_BUFFER_OVERFLOW) {
/*some compilers complain that size_t cannot be formatted as unsigned long, hence forcing cast*/
ms_warning("QualityReporting: Buffer was too small to contain the whole report - increasing its size from %lu to %lu",
(unsigned long)*buff_size, (unsigned long)*buff_size + 2048);
*buff_size += 2048;
*buff = (char *) ms_realloc(*buff, *buff_size);
*offset = prevoffset;
/*recall itself since we did not write all things into the buffer but
only a part of it*/
append_to_buffer_valist(buff, buff_size, offset, fmt, args);
}
}
belle_sip_error_code belle_sip_snprintf(char *buff, size_t buff_size, size_t *offset, const char *fmt, ...) {
belle_sip_error_code ret;
va_list args;
va_start(args, fmt);
ret = belle_sip_snprintf_valist(buff, buff_size, offset, fmt, args);
va_end(args);
return ret;
}
