summaryrefslogtreecommitdiffstats
path: root/src/util/allspace.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
commitb5896ba9f6047e7031e2bdee0622d543e11a6734 (patch)
treefd7b460593a2fee1be579bec5697e6d887ea3421 /src/util/allspace.c
parentInitial commit. (diff)
downloadpostfix-upstream.tar.xz
postfix-upstream.zip
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/util/allspace.c')
-rw-r--r--src/util/allspace.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/src/util/allspace.c b/src/util/allspace.c
new file mode 100644
index 0000000..9a05347
--- /dev/null
+++ b/src/util/allspace.c
@@ -0,0 +1,50 @@
+/*++
+/* NAME
+/* allspace 3
+/* SUMMARY
+/* predicate if string is all space
+/* SYNOPSIS
+/* #include <stringops.h>
+/*
+/* int allspace(buffer)
+/* const char *buffer;
+/* DESCRIPTION
+/* allspace() determines if its argument is an all-space string.
+/*
+/* Arguments:
+/* .IP buffer
+/* The null-terminated input string.
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/* Wietse Venema
+/* IBM T.J. Watson Research
+/* P.O. Box 704
+/* Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <ctype.h>
+
+/* Utility library. */
+
+#include "stringops.h"
+
+/* allspace - return true if string is all space */
+
+int allspace(const char *string)
+{
+ const char *cp;
+ int ch;
+
+ if (*string == 0)
+ return (0);
+ for (cp = string; (ch = *(unsigned char *) cp) != 0; cp++)
+ if (!ISASCII(ch) || !ISSPACE(ch))
+ return (0);
+ return (1);
+}