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/* A simple growing buffer for GDB.
Copyright (C) 2009-2021 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "common-defs.h"
#include "xml-utils.h"
#include "buffer.h"
#include "inttypes.h"
void
buffer_grow (struct buffer *buffer, const char *data, size_t size)
{
char *new_buffer;
size_t new_buffer_size;
if (size == 0)
return;
new_buffer_size = buffer->buffer_size;
if (new_buffer_size == 0)
new_buffer_size = 1;
while (buffer->used_size + size > new_buffer_size)
new_buffer_size *= 2;
new_buffer = (char *) xrealloc (buffer->buffer, new_buffer_size);
memcpy (new_buffer + buffer->used_size, data, size);
buffer->buffer = new_buffer;
buffer->buffer_size = new_buffer_size;
buffer->used_size += size;
}
void
buffer_free (struct buffer *buffer)
{
if (!buffer)
return;
xfree (buffer->buffer);
buffer->buffer = NULL;
buffer->buffer_size = 0;
buffer->used_size = 0;
}
void
buffer_init (struct buffer *buffer)
{
memset (buffer, 0, sizeof (*buffer));
}
char*
buffer_finish (struct buffer *buffer)
{
char *ret = buffer->buffer;
buffer->buffer = NULL;
buffer->buffer_size = 0;
buffer->used_size = 0;
return ret;
}
void
buffer_xml_printf (struct buffer *buffer, const char *format, ...)
{
va_list ap;
const char *f;
const char *prev;
int percent = 0;
va_start (ap, format);
prev = format;
for (f = format; *f; f++)
{
if (percent)
{
char buf[32];
char *str = buf;
const char *f_old = f;
switch (*f)
{
case 's':
str = va_arg (ap, char *);
break;
case 'd':
sprintf (str, "%d", va_arg (ap, int));
break;
case 'u':
sprintf (str, "%u", va_arg (ap, unsigned int));
break;
case 'x':
sprintf (str, "%x", va_arg (ap, unsigned int));
break;
case 'o':
sprintf (str, "%o", va_arg (ap, unsigned int));
break;
case 'l':
f++;
switch (*f)
{
case 'd':
sprintf (str, "%ld", va_arg (ap, long));
break;
case 'u':
sprintf (str, "%lu", va_arg (ap, unsigned long));
break;
case 'x':
sprintf (str, "%lx", va_arg (ap, unsigned long));
break;
case 'o':
sprintf (str, "%lo", va_arg (ap, unsigned long));
break;
case 'l':
f++;
switch (*f)
{
case 'd':
sprintf (str, "%" PRId64,
(int64_t) va_arg (ap, long long));
break;
case 'u':
sprintf (str, "%" PRIu64,
(uint64_t) va_arg (ap, unsigned long long));
break;
case 'x':
sprintf (str, "%" PRIx64,
(uint64_t) va_arg (ap, unsigned long long));
break;
case 'o':
sprintf (str, "%" PRIo64,
(uint64_t) va_arg (ap, unsigned long long));
break;
default:
str = 0;
break;
}
break;
default:
str = 0;
break;
}
break;
default:
str = 0;
break;
}
if (str)
{
buffer_grow (buffer, prev, f_old - prev - 1);
std::string p = xml_escape_text (str);
buffer_grow_str (buffer, p.c_str ());
prev = f + 1;
}
percent = 0;
}
else if (*f == '%')
percent = 1;
}
buffer_grow_str (buffer, prev);
va_end (ap);
}
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