[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/libbb/xregcomp.c b/ap/app/busybox/src/libbb/xregcomp.c
new file mode 100644
index 0000000..d106f85
--- /dev/null
+++ b/ap/app/busybox/src/libbb/xregcomp.c
@@ -0,0 +1,64 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) many different people.
+ * If you wrote this, please acknowledge your work.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+#include "libbb.h"
+
+#if defined(__UC_LIBC__USE_REGEXP_H__)
+
+#include <regexp.h>
+
+void xregcomp(regex_t *preg, const char *reg, int cflags)
+{
+	regexp *ret;
+	const char *r;
+	r = reg;
+	if (cflags)
+		bb_error_msg_and_die("xregcomp: no support for -i");
+	ret = regcomp(r);
+	if (ret == NULL) {
+		regerror("cannot compile expression");
+		exit(1);
+	}
+	*preg = ret;
+}
+
+#else
+
+#include "xregex.h"
+
+char* FAST_FUNC regcomp_or_errmsg(regex_t *preg, const char *regex, int cflags)
+{
+	int ret = regcomp(preg, regex, cflags);
+	if (ret) {
+		int errmsgsz = regerror(ret, preg, NULL, 0);
+		char *errmsg = xmalloc(errmsgsz);
+		regerror(ret, preg, errmsg, errmsgsz);
+		return errmsg;
+	}
+	return NULL;
+}
+
+void FAST_FUNC xregcomp(regex_t *preg, const char *regex, int cflags)
+{
+	char *errmsg = regcomp_or_errmsg(preg, regex, cflags);
+	if (errmsg) {
+		bb_error_msg_and_die("bad regex '%s': %s", regex, errmsg);
+	}
+}
+#endif
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/