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updated for version 7.4.238

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Problem:    Vim does not support the smack library.
Solution:   Add smack support (Jose Bollo)
This commit is contained in:
Bram Moolenaar
2014-04-02 14:05:38 +02:00
parent 6716d9af11
commit 5bd32f47ec
8 changed files with 214 additions and 24 deletions
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92
src/os_unix.c
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@@ -46,6 +46,14 @@
static int selinux_enabled = -1;
#endif
#ifdef HAVE_SMACK
# include <attr/xattr.h>
# include <linux/xattr.h>
# ifndef SMACK_LABEL_LEN
# define SMACK_LABEL_LEN 1024
# endif
#endif
/*
* Use this prototype for select, some include files have a wrong prototype
*/
@@ -2798,6 +2806,90 @@ mch_copy_sec(from_file, to_file)
}
#endif /* HAVE_SELINUX */
#if defined(HAVE_SMACK) && !defined(PROTO)
/*
* Copy security info from "from_file" to "to_file".
*/
void
mch_copy_sec(from_file, to_file)
char_u *from_file;
char_u *to_file;
{
static const char const *smack_copied_attributes[] =
{
XATTR_NAME_SMACK,
XATTR_NAME_SMACKEXEC,
XATTR_NAME_SMACKMMAP
};
char buffer[SMACK_LABEL_LEN];
const char *name;
int index;
int ret;
ssize_t size;
if (from_file == NULL)
return;
for (index = 0 ; index < (int)(sizeof(smack_copied_attributes)
/ sizeof(smack_copied_attributes)[0]) ; index++)
{
/* get the name of the attribute to copy */
name = smack_copied_attributes[index];
/* get the value of the attribute in buffer */
size = getxattr((char*)from_file, name, buffer, sizeof(buffer));
if (size >= 0)
{
/* copy the attribute value of buffer */
ret = setxattr((char*)to_file, name, buffer, (size_t)size, 0);
if (ret < 0)
{
MSG_PUTS(_("Could not set security context "));
MSG_PUTS(name);
MSG_PUTS(_(" for "));
msg_outtrans(to_file);
msg_putchar('\n');
}
}
else
{
/* what reason of not having the attribute value? */
switch (errno)
{
case ENOTSUP:
/* extended attributes aren't supported or enabled */
/* should a message be echoed? not sure... */
return; /* leave because it isn't usefull to continue */
case ERANGE:
default:
/* no enough size OR unexpected error */
MSG_PUTS(_("Could not get security context "));
MSG_PUTS(name);
MSG_PUTS(_(" for "));
msg_outtrans(from_file);
MSG_PUTS(_(". Removing it!\n"));
/* FALLTHROUGH to remove the attribute */
case ENODATA:
/* no attribute of this name */
ret = removexattr((char*)to_file, name);
if (ret < 0 && errno != ENODATA)
{
MSG_PUTS(_("Could not remove security context "));
MSG_PUTS(name);
MSG_PUTS(_(" for "));
msg_outtrans(to_file);
msg_putchar('\n');
}
break;
}
}
}
}
#endif /* HAVE_SMACK */
/*
* Return a pointer to the ACL of file "fname" in allocated memory.
* Return NULL if the ACL is not available for whatever reason.