From: Alejandro Colomar <alx@kernel.org>
Date: Wed, 11 Dec 2024 20:42:07 +0000 (+0100)
Subject: lib/string/ctype/strisascii/: strisprint(): Add function
X-Git-Tag: 4.18.0-rc1~41
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d7031cecd2ed73120c69663a87e2911880e6dee2;p=thirdparty%2Fshadow.git

lib/string/ctype/strisascii/: strisprint(): Add function

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

diff --git a/lib/Makefile.am b/lib/Makefile.am
index e9ffd7e1f..fd9292a3e 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -181,6 +181,8 @@ libshadow_la_SOURCES = \
 	sssd.h \
 	string/ctype/strisascii/strisdigit.c \
 	string/ctype/strisascii/strisdigit.h \
+	string/ctype/strisascii/strisprint.c \
+	string/ctype/strisascii/strisprint.h \
 	string/ctype/strtoascii/strtolower.c \
 	string/ctype/strtoascii/strtolower.h \
 	string/memset/memzero.c \
diff --git a/lib/string/ctype/strisascii/strisprint.c b/lib/string/ctype/strisascii/strisprint.c
new file mode 100644
index 000000000..8fc629632
--- /dev/null
+++ b/lib/string/ctype/strisascii/strisprint.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/strisascii/strisprint.h"
+
+#include <stdbool.h>
+
+
+extern inline bool strisprint(const char *s);
diff --git a/lib/string/ctype/strisascii/strisprint.h b/lib/string/ctype/strisascii/strisprint.h
new file mode 100644
index 000000000..12e6a8950
--- /dev/null
+++ b/lib/string/ctype/strisascii/strisprint.h
@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: 2024-2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
+
+#ifndef SHADOW_INCLUDE_LIB_STRING_CTYPE_STRISASCII_STRISPRINT_H_
+#define SHADOW_INCLUDE_LIB_STRING_CTYPE_STRISASCII_STRISPRINT_H_
+
+
+#include <config.h>
+
+#include <ctype.h>
+#include <stdbool.h>
+
+#include "string/strcmp/streq.h"
+
+
+inline bool strisprint(const char *s);
+
+
+// string is [:print:]
+// Like isprint(3), but check all characters in the string.
+inline bool
+strisprint(const char *s)
+{
+	if (streq(s, ""))
+		return false;
+
+	for (; !streq(s, ""); s++) {
+		unsigned char  c = *s;
+
+		if (!isprint(c))
+			return false;
+	}
+
+	return true;
+}
+
+
+#endif  // include guard