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/* Add string to a section.
Copyright (C) 2002 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2002.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils 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 copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <libasmP.h>
/* Add zero terminated string STR of size LEN to (sub)section ASMSCN. */
int
asm_addstrz (asmscn, str, len)
AsmScn_t *asmscn;
const char *str;
size_t len;
{
if (asmscn == NULL)
return -1;
if (unlikely (asmscn->type == SHT_NOBITS))
{
if (len == 0)
{
if (str[0] != '\0')
{
__libasm_seterrno (ASM_E_TYPE);
return -1;
}
}
else
{
size_t cnt;
for (cnt = 0; cnt < len; ++cnt)
if (str[cnt] != '\0')
{
__libasm_seterrno (ASM_E_TYPE);
return -1;
}
}
}
if (len == 0)
len = strlen (str) + 1;
if (unlikely (asmscn->ctx->textp))
{
bool nextline = true;
do
{
if (nextline)
{
fputs ("\t.string\t\"", asmscn->ctx->out.file);
nextline = false;
}
if (*str == '\0')
fputs ("\\000", asmscn->ctx->out.file);
else if (! isascii (*str))
fprintf (asmscn->ctx->out.file, "\\%03o",
(unsigned int) *((unsigned char *)str));
else if (*str == '\\')
fputs ("\\\\", asmscn->ctx->out.file);
else if (*str == '\n')
{
fputs ("\\n\"", asmscn->ctx->out.file);
nextline = true;
}
else
fputc (*str, asmscn->ctx->out.file);
++str;
}
while (--len > 0 && (len > 1 || *str != '\0'));
if (! nextline)
fputs ("\"\n", asmscn->ctx->out.file);
}
else
{
/* Make sure there is enough room. */
if (__libasm_ensure_section_space (asmscn, len) != 0)
return -1;
/* Copy the string. */
memcpy (&asmscn->content->data[asmscn->content->len], str, len);
/* Adjust the pointer in the data buffer. */
asmscn->content->len += len;
/* Increment the offset in the (sub)section. */
asmscn->offset += len;
}
return 0;
}
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