busybox: imported from http://www.busybox.net/downloads/busybox-1.13.3.tar.bz2busybox-1.13.3

Signed-off-by: Bjørn Mork <bjorn@mork.no>

1 files changed, 32 insertions, 0 deletions

diff --git a/libbb/xregcomp.c b/libbb/xregcomp.c
new file mode 100644
index 0000000..61efb5b
--- /dev/null
+++ b/libbb/xregcomp.c
@@ -0,0 +1,32 @@
+/* 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 tarball for details.
+ */
+
+#include "libbb.h"
+#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);
+	}
+}