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Plug one of many possible memory leaks in error handling.

This commit is contained in:
Nick Clifton 2000-10-25 21:53:44 +00:00
parent 53d2c54b5b
commit c4920b9772
2 changed files with 29 additions and 29 deletions
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5
bfd/ChangeLog
View File

@ -1,3 +1,8 @@
2000-10-25 Chris Demetriou <cgd@sibyte.com>
* ieee.c (ieee_archive_p): Plug one of many possible
memory leaks in error handling.
2000-10-20 Jakub Jelinek <jakub@redhat.com>
* elf32-sparc.c (elf32_sparc_merge_private_bfd_data,

53
bfd/ieee.c
View File

@ -1343,27 +1343,21 @@ ieee_archive_p (abfd)
ieee->h.abfd = abfd;
if (this_byte (&(ieee->h)) != Module_Beginning)
{
abfd->tdata.ieee_ar_data = save;
goto got_wrong_format_error;
}
goto got_wrong_format_error;
next_byte (&(ieee->h));
library = read_id (&(ieee->h));
if (strcmp (library, "LIBRARY") != 0)
{
bfd_release (abfd, ieee);
abfd->tdata.ieee_ar_data = save;
goto got_wrong_format_error;
}
/* Throw away the filename */
goto got_wrong_format_error;
/* Throw away the filename. */
read_id (&(ieee->h));
ieee->element_count = 0;
ieee->element_index = 0;
next_byte (&(ieee->h)); /* Drop the ad part */
must_parse_int (&(ieee->h)); /* And the two dummy numbers */
next_byte (&(ieee->h)); /* Drop the ad part. */
must_parse_int (&(ieee->h)); /* And the two dummy numbers. */
must_parse_int (&(ieee->h));
alc_elts = 10;
@ -1371,7 +1365,7 @@ ieee_archive_p (abfd)
if (elts == NULL)
goto error_return;
/* Read the index of the BB table */
/* Read the index of the BB table. */
while (1)
{
int rec;
@ -1400,14 +1394,14 @@ ieee_archive_p (abfd)
t->file_offset = must_parse_int (&(ieee->h));
t->abfd = (bfd *) NULL;
/* Make sure that we don't go over the end of the buffer */
/* Make sure that we don't go over the end of the buffer. */
if ((size_t) ieee_pos (abfd) > sizeof (buffer) / 2)
{
/* Past half way, reseek and reprime */
/* Past half way, reseek and reprime. */
buffer_offset += ieee_pos (abfd);
if (bfd_seek (abfd, buffer_offset, SEEK_SET) != 0)
goto error_return;
/* FIXME: Check return value. I'm not sure whether it needs
to read the entire buffer or not. */
bfd_read ((PTR) buffer, 1, sizeof (buffer), abfd);
@ -1421,36 +1415,33 @@ ieee_archive_p (abfd)
ieee->element_count * sizeof *ieee->elements));
if (ieee->elements == NULL)
goto error_return;
memcpy (ieee->elements, elts,
ieee->element_count * sizeof *ieee->elements);
free (elts);
elts = NULL;
/* Now scan the area again, and replace BB offsets with file */
/* offsets */
/* Now scan the area again, and replace BB offsets with file offsets. */
for (i = 2; i < ieee->element_count; i++)
{
if (bfd_seek (abfd, ieee->elements[i].file_offset, SEEK_SET) != 0)
goto error_return;
/* FIXME: Check return value. I'm not sure whether it needs to
read the entire buffer or not. */
bfd_read ((PTR) buffer, 1, sizeof (buffer), abfd);
ieee->h.first_byte = buffer;
ieee->h.input_p = buffer;
next_byte (&(ieee->h)); /* Drop F8 */
next_byte (&(ieee->h)); /* Drop 14 */
must_parse_int (&(ieee->h)); /* Drop size of block */
next_byte (&(ieee->h)); /* Drop F8. */
next_byte (&(ieee->h)); /* Drop 14. */
must_parse_int (&(ieee->h)); /* Drop size of block. */
if (must_parse_int (&(ieee->h)) != 0)
{
/* This object has been deleted */
ieee->elements[i].file_offset = 0;
}
/* This object has been deleted. */
ieee->elements[i].file_offset = 0;
else
{
ieee->elements[i].file_offset = must_parse_int (&(ieee->h));
}
ieee->elements[i].file_offset = must_parse_int (&(ieee->h));
}
/* abfd->has_armap = ;*/
@ -1458,10 +1449,14 @@ ieee_archive_p (abfd)
return abfd->xvec;
got_wrong_format_error:
bfd_release (abfd, ieee);
abfd->tdata.ieee_ar_data = save;
bfd_set_error (bfd_error_wrong_format);
error_return:
if (elts != NULL)
free (elts);
return NULL;
}