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openwrt-xburst/package/busybox/patches/803-id_getgrouplist.patch

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This patch disable supplementary groups handling in id with uClibc versions
prior to v0.9.30, which are lacking the 'getgrouplist' function.
Signed-off-by: Nicolas Thill <nico@openwrt.org>
--- a/coreutils/id.c
+++ b/coreutils/id.c
@@ -17,10 +17,12 @@
#include "libbb.h"
+#define HAVE_GETGROUPLIST 1
+
#if !ENABLE_USE_BB_PWD_GRP
#if defined(__UCLIBC_MAJOR__) && (__UCLIBC_MAJOR__ == 0)
#if (__UCLIBC_MINOR__ < 9) || (__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ < 30)
-#error "Sorry, you need at least uClibc version 0.9.30 for id applet to build"
+#undef HAVE_GETGROUPLIST
#endif
#endif
#endif
@@ -82,7 +84,11 @@ static int get_groups(const char *userna
/* If the user is a member of more than
* *n groups, then -1 is returned. Otherwise >= 0.
* (and no defined way of detecting errors?!) */
+#if HAVE_GETGROUPLIST
m = getgrouplist(username, rgid, groups, n);
+#else
+ *n = -1;
+#endif
/* I guess *n < 0 might indicate error. Anyway,
* malloc'ing -1 bytes won't be good, so: */
//if (*n < 0)
@@ -154,6 +160,7 @@ int id_main(int argc UNUSED_PARAM, char
if (egid != rgid)
status |= print_group(egid, " ");
}
+#if HAVE_GETGROUPLIST
/* We are supplying largish buffer, trying
* to not run get_groups() twice. That might be slow
* ("user database in remote SQL server" case) */
@@ -181,6 +188,7 @@ int id_main(int argc UNUSED_PARAM, char
}
if (ENABLE_FEATURE_CLEAN_UP)
free(groups);
+#endif
#if ENABLE_SELINUX
if (is_selinux_enabled()) {
if (getcon(&scontext) == 0)