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pex-common.c (temp_file): New function, containing guts of pex-style temporary file name generation.

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2006-04-10  Jim Blandy  <jimb@codesourcery.com>

	* pex-common.c (temp_file): New function, containing guts of
	pex-style temporary file name generation.
	(pex_run): Use it.

From-SVN: r112882
This commit is contained in:
Jim Blandy 2006-04-12 06:24:40 +00:00 committed by Jim Blandy
parent 79773478a6
commit 5ea49f9c39
2 changed files with 65 additions and 42 deletions
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6
libiberty/ChangeLog
View File

@ -1,3 +1,9 @@
2006-04-10 Jim Blandy <jimb@codesourcery.com>
* pex-common.c (temp_file): New function, containing guts of
pex-style temporary file name generation.
(pex_run): Use it.
2006-04-06 Carlos O'Donell <carlos@codesourcery.com>
* Makefile.in: Add install-html, install-html-am, and

101
libiberty/pex-common.c
View File

@ -91,6 +91,56 @@ pex_add_remove (struct pex_obj *obj, const char *name, int allocated)
obj->remove[obj->remove_count - 1] = add;
}
/* Generate a temporary file name based on OBJ, FLAGS, and NAME.
Return NULL if we were unable to reserve a temporary filename.
If non-NULL, the result is either allocated with malloc, or the
same pointer as NAME. */
static char *
temp_file (struct pex_obj *obj, int flags, char *name)
{
if (name == NULL)
{
if (obj->tempbase == NULL)
{
name = make_temp_file (NULL);
}
else
{
int len = strlen (obj->tempbase);
int out;
if (len >= 6
&& strcmp (obj->tempbase + len - 6, "XXXXXX") == 0)
name = xstrdup (obj->tempbase);
else
name = concat (obj->tempbase, "XXXXXX", NULL);
out = mkstemps (name, 0);
if (out < 0)
{
free (name);
return NULL;
}
/* This isn't obj->funcs->close because we got the
descriptor from mkstemps, not from a function in
obj->funcs. Calling close here is just like what
make_temp_file does. */
close (out);
}
}
else if ((flags & PEX_SUFFIX) != 0)
{
if (obj->tempbase == NULL)
name = make_temp_file (name);
else
name = concat (obj->tempbase, name, NULL);
}
return name;
}
/* Run a program. */
const char *
@ -161,49 +211,16 @@ pex_run (struct pex_obj *obj, int flags, const char *executable,
}
else if ((obj->flags & PEX_USE_PIPES) == 0)
{
if (outname == NULL)
{
if (obj->tempbase == NULL)
{
outname = make_temp_file (NULL);
outname_allocated = 1;
}
else
{
int len = strlen (obj->tempbase);
outname = temp_file (obj, flags, outname);
if (! outname)
{
*err = 0;
errmsg = "could not create temporary file";
goto error_exit;
}
if (len >= 6
&& strcmp (obj->tempbase + len - 6, "XXXXXX") == 0)
outname = xstrdup (obj->tempbase);
else
outname = concat (obj->tempbase, "XXXXXX", NULL);
outname_allocated = 1;
out = mkstemps (outname, 0);
if (out < 0)
{
*err = 0;
errmsg = "could not create temporary output file";
goto error_exit;
}
/* This isn't obj->funcs->close because we got the
descriptor from mkstemps, not from a function in
obj->funcs. Calling close here is just like what
make_temp_file does. */
close (out);
out = -1;
}
}
else if ((flags & PEX_SUFFIX) != 0)
{
if (obj->tempbase == NULL)
outname = make_temp_file (outname);
else
outname = concat (obj->tempbase, outname, NULL);
outname_allocated = 1;
}
if (outname != orig_outname)
outname_allocated = 1;
if ((obj->flags & PEX_SAVE_TEMPS) == 0)
{