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-rw-r--r--src/util/trimblanks.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/src/util/trimblanks.c b/src/util/trimblanks.c
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+/*++
+/* NAME
+/* trimblanks 3
+/* SUMMARY
+/* skip leading whitespace
+/* SYNOPSIS
+/* #include <stringops.h>
+/*
+/* char *trimblanks(string, len)
+/* char *string;
+/* ssize_t len;
+/* DESCRIPTION
+/* trimblanks() returns a pointer to the beginning of the trailing
+/* whitespace in \fIstring\fR, or a pointer to the string terminator
+/* when the string contains no trailing whitespace.
+/* The \fIlen\fR argument is either zero or the string length.
+/* 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"
+
+char *trimblanks(char *string, ssize_t len)
+{
+ char *curr;
+
+ if (len) {
+ curr = string + len;
+ } else {
+ for (curr = string; *curr != 0; curr++)
+ /* void */ ;
+ }
+ while (curr > string && ISSPACE(curr[-1]))
+ curr -= 1;
+ return (curr);
+}