1 files changed, 74 insertions, 0 deletions
diff --git a/testsuite/uname.c b/testsuite/uname.c
new file mode 100644
index 0000000..27f92d5
--- /dev/null
+++ b/testsuite/uname.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2012-2013  ProFUSION embedded systems
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <dlfcn.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/utsname.h>
+
+#include "testsuite.h"
+
+TS_EXPORT int uname(struct utsname *u)
+{
+	static void *nextlib = NULL;
+	static int (*nextlib_uname)(struct utsname *u);
+	const char *release;
+	int err;
+	size_t sz;
+
+	if (nextlib == NULL) {
+#ifdef RTLD_NEXT
+		nextlib = RTLD_NEXT;
+#else
+		nextlib = dlopen("libc.so.6", RTLD_LAZY);
+#endif
+		nextlib_uname = dlsym(nextlib, "uname");
+	}
+
+	err = nextlib_uname(u);
+	if (err < 0)
+		return err;
+
+	if (!environ)
+		/*
+		 * probably called from within glibc before main(); unsafe
+		 * to call getenv()
+		 */
+		return 0;
+
+	release = getenv(S_TC_UNAME_R);
+	if (release == NULL) {
+		fprintf(stderr, "TRAP uname(): missing export %s?\n",
+							S_TC_UNAME_R);
+		return 0;
+	}
+
+	sz = strlen(release) + 1;
+	if (sz > sizeof(u->release)) {
+		fprintf(stderr, "uname(): sizeof release (%s) "
+				"is greater than available space: %zu",
+				release, sizeof(u->release));
+		errno = -EFAULT;
+		return -1;
+	}
+
+	memcpy(u->release, release, sz);
+	return 0;
+}