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1999-05-04  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-load.c (expand_dynamic_string_token): Recognize { }
	around DST.  Correctly ignore ORIGIN IN SUID binaries.
This commit is contained in:
Ulrich Drepper
1999-05-04 01:48:08 +00:00
parent 9f509acb28
commit 27aa0631c7
2 changed files with 27 additions and 11 deletions
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33
elf/dl-load.c
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@ -171,10 +171,15 @@ expand_dynamic_string_token (struct link_map *l, const char *s)
size_t len = 1;
/* $ORIGIN is not expanded for SUID/GUID programs. */
if (((!__libc_enable_secure
&& strncmp (&sf[1], "ORIGIN", 6) == 0 && (len = 7) != 0)
|| (strncmp (&sf[1], "PLATFORM", 8) == 0 && (len = 9) != 0))
&& (s[len] == '\0' || s[len] == '/' || s[len] == ':'))
if ((((!__libc_enable_secure
&& strncmp (&sf[1], "ORIGIN", 6) == 0 && (len = 7) != 0)
|| (strncmp (&sf[1], "PLATFORM", 8) == 0 && (len = 9) != 0))
&& (s[len] == '\0' || s[len] == '/' || s[len] == ':'))
|| (s[1] == '{'
&& ((!__libc_enable_secure
&& strncmp (&sf[2], "ORIGIN}", 7) == 0 && (len = 9) != 0)
|| (strncmp (&sf[2], "PLATFORM}", 9) == 0
&& (len = 11) != 0))))
++cnt;
st = sf + len;
@ -220,13 +225,19 @@ expand_dynamic_string_token (struct link_map *l, const char *s)
const char *repl;
size_t len;
if (((!__libc_enable_secure
&& strncmp (&s[1], "ORIGIN", 6) == 0 && (len = 7) != 0)
|| (strncmp (&s[1], "PLATFORM", 8) == 0 && (len = 9) != 0))
&& (s[len] == '\0' || s[len] == '/' || s[len] == ':'))
if ((((strncmp (&s[1], "ORIGIN", 6) == 0 && (len = 7) != 0)
|| (strncmp (&s[1], "PLATFORM", 8) == 0 && (len = 9) != 0))
&& (s[len] == '\0' || s[len] == '/' || s[len] == ':'))
|| (s[1] == '{'
&& ((strncmp (&s[2], "ORIGIN}", 7) == 0 && (len = 9) != 0)
|| (strncmp (&s[2], "PLATFORM}", 9) == 0
&& (len = 11) != 0))))
{
if ((repl = len == 7 ? l->l_origin : _dl_platform) != NULL
&& repl != (const char *) -1)
repl = ((len == 7 || s[2] == 'O')
? (__libc_enable_secure ? NULL : l->l_origin)
: _dl_platform);
if (repl != NULL && repl != (const char *) -1)
{
wp = __stpcpy (wp, repl);
s += len;
@ -242,7 +253,7 @@ expand_dynamic_string_token (struct link_map *l, const char *s)
}
}
else
/* No SDK we recognize. */
/* No DST we recognize. */
*wp++ = *s++;
}
else if (*s == ':')