180 lines
3.8 KiB
C
180 lines
3.8 KiB
C
/* A simple growing buffer for GDB.
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Copyright (C) 2009-2016 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "common-defs.h"
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#include "xml-utils.h"
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#include "buffer.h"
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#include "inttypes.h"
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void
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buffer_grow (struct buffer *buffer, const char *data, size_t size)
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{
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char *new_buffer;
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size_t new_buffer_size;
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if (size == 0)
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return;
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new_buffer_size = buffer->buffer_size;
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if (new_buffer_size == 0)
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new_buffer_size = 1;
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while (buffer->used_size + size > new_buffer_size)
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new_buffer_size *= 2;
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new_buffer = (char *) xrealloc (buffer->buffer, new_buffer_size);
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memcpy (new_buffer + buffer->used_size, data, size);
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buffer->buffer = new_buffer;
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buffer->buffer_size = new_buffer_size;
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buffer->used_size += size;
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}
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void
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buffer_free (struct buffer *buffer)
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{
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if (!buffer)
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return;
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xfree (buffer->buffer);
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buffer->buffer = NULL;
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buffer->buffer_size = 0;
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buffer->used_size = 0;
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}
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void
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buffer_init (struct buffer *buffer)
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{
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memset (buffer, 0, sizeof (*buffer));
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}
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char*
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buffer_finish (struct buffer *buffer)
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{
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char *ret = buffer->buffer;
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buffer->buffer = NULL;
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buffer->buffer_size = 0;
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buffer->used_size = 0;
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return ret;
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}
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void
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buffer_xml_printf (struct buffer *buffer, const char *format, ...)
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{
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va_list ap;
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const char *f;
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const char *prev;
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int percent = 0;
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va_start (ap, format);
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prev = format;
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for (f = format; *f; f++)
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{
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if (percent)
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{
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char buf[32];
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char *p;
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char *str = buf;
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const char *f_old = f;
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switch (*f)
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{
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case 's':
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str = va_arg (ap, char *);
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break;
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case 'd':
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sprintf (str, "%d", va_arg (ap, int));
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break;
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case 'u':
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sprintf (str, "%u", va_arg (ap, unsigned int));
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break;
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case 'x':
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sprintf (str, "%x", va_arg (ap, unsigned int));
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break;
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case 'o':
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sprintf (str, "%o", va_arg (ap, unsigned int));
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break;
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case 'l':
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f++;
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switch (*f)
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{
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case 'd':
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sprintf (str, "%ld", va_arg (ap, long));
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break;
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case 'u':
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sprintf (str, "%lu", va_arg (ap, unsigned long));
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break;
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case 'x':
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sprintf (str, "%lx", va_arg (ap, unsigned long));
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break;
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case 'o':
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sprintf (str, "%lo", va_arg (ap, unsigned long));
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break;
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case 'l':
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f++;
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switch (*f)
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{
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case 'd':
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sprintf (str, "%" PRId64,
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(int64_t) va_arg (ap, long long));
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break;
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case 'u':
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sprintf (str, "%" PRIu64,
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(uint64_t) va_arg (ap, unsigned long long));
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break;
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case 'x':
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sprintf (str, "%" PRIx64,
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(uint64_t) va_arg (ap, unsigned long long));
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break;
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case 'o':
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sprintf (str, "%" PRIo64,
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(uint64_t) va_arg (ap, unsigned long long));
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break;
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default:
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str = 0;
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break;
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}
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break;
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default:
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str = 0;
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break;
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}
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break;
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default:
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str = 0;
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break;
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}
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if (str)
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{
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buffer_grow (buffer, prev, f_old - prev - 1);
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p = xml_escape_text (str);
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buffer_grow_str (buffer, p);
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xfree (p);
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prev = f + 1;
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}
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percent = 0;
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}
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else if (*f == '%')
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percent = 1;
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}
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buffer_grow_str (buffer, prev);
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va_end (ap);
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}
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