From: Alejandro Colomar <alx@kernel.org>
Date: Fri, 13 Dec 2024 02:46:33 +0000 (+0100)
Subject: lib/string/ctype/strchrisascii/: strchriscntrl(): Add function
X-Git-Tag: 4.18.0-rc1~40
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a0c8876b9e96517eeaf5c5f0e54d1fd8d98a0347;p=thirdparty%2Fshadow.git

lib/string/ctype/strchrisascii/: strchriscntrl(): Add function

Signed-off-by: Alejandro Colomar <alx@kernel.org>
---

diff --git a/lib/Makefile.am b/lib/Makefile.am
index fd9292a3e..42a439b41 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -179,6 +179,8 @@ libshadow_la_SOURCES = \
 	spawn.c \
 	sssd.c \
 	sssd.h \
+	string/ctype/strchrisascii/strchriscntrl.c \
+	string/ctype/strchrisascii/strchriscntrl.h \
 	string/ctype/strisascii/strisdigit.c \
 	string/ctype/strisascii/strisdigit.h \
 	string/ctype/strisascii/strisprint.c \
diff --git a/lib/string/ctype/strchrisascii/strchriscntrl.c b/lib/string/ctype/strchrisascii/strchriscntrl.c
new file mode 100644
index 000000000..cb99c6f3d
--- /dev/null
+++ b/lib/string/ctype/strchrisascii/strchriscntrl.c
@@ -0,0 +1,12 @@
+// SPDX-FileCopyrightText: 2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#include <config.h>
+
+#include "string/ctype/strchrisascii/strchriscntrl.h"
+
+#include <stdbool.h>
+
+
+extern inline bool strchriscntrl(const char *s);
diff --git a/lib/string/ctype/strchrisascii/strchriscntrl.h b/lib/string/ctype/strchrisascii/strchriscntrl.h
new file mode 100644
index 000000000..966aa945f
--- /dev/null
+++ b/lib/string/ctype/strchrisascii/strchriscntrl.h
@@ -0,0 +1,36 @@
+// SPDX-FileCopyrightText: 2024-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_STRING_CTYPE_STRCHRISASCII_STRCHRISCNTRL_H_
+#define SHADOW_INCLUDE_LIB_STRING_CTYPE_STRCHRISASCII_STRCHRISCNTRL_H_
+
+
+#include <config.h>
+
+#include <ctype.h>
+#include <stdbool.h>
+
+#include "string/strcmp/streq.h"
+
+
+inline bool strchriscntrl(const char *s);
+
+
+// string character is [:cntrl:]
+// Return true if any iscntrl(3) character is found in the string.
+inline bool
+strchriscntrl(const char *s)
+{
+	for (; !streq(s, ""); s++) {
+		unsigned char  c = *s;
+
+		if (iscntrl(c))
+			return true;
+	}
+
+	return false;
+}
+
+
+#endif  // include guard