1 files changed, 86 insertions, 0 deletions
diff --git a/src/util/translit.c b/src/util/translit.c
new file mode 100644
index 0000000..ba04bf2
--- /dev/null
+++ b/src/util/translit.c
@@ -0,0 +1,86 @@
+/*++
+/* NAME
+/*	translit 3
+/* SUMMARY
+/*	transliterate characters
+/* SYNOPSIS
+/*	#include <stringops.h>
+/*
+/*	char	*translit(buf, original, replacement)
+/*	char	*buf;
+/*	char	*original;
+/*	char	*replacement;
+/* DESCRIPTION
+/*	translit() takes a null-terminated string, and replaces characters
+/*	given in its \fIoriginal\fR argument by the corresponding characters
+/*	in the \fIreplacement\fR string. The result value is the \fIbuf\fR
+/*	argument.
+/* BUGS
+/*	Cannot replace null characters.
+/* 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 <string.h>
+
+/* Utility library. */
+
+#include "stringops.h"
+
+char   *translit(char *string, const char *original, const char *replacement)
+{
+    char   *cp;
+    const char *op;
+
+    /*
+     * For large inputs, should use a lookup table.
+     */
+    for (cp = string; *cp != 0; cp++) {
+	for (op = original; *op != 0; op++) {
+	    if (*cp == *op) {
+		*cp = replacement[op - original];
+		break;
+	    }
+	}
+    }
+    return (string);
+}
+
+#ifdef TEST
+
+ /*
+  * Usage: translit string1 string2
+  * 
+  * test program to perform the most basic operation of the UNIX tr command.
+  */
+#include <msg.h>
+#include <vstring.h>
+#include <vstream.h>
+#include <vstring_vstream.h>
+
+#define STR	vstring_str
+
+int     main(int argc, char **argv)
+{
+    VSTRING *buf = vstring_alloc(100);
+
+    if (argc != 3)
+	msg_fatal("usage: %s string1 string2", argv[0]);
+    while (vstring_fgets(buf, VSTREAM_IN))
+	vstream_fputs(translit(STR(buf), argv[1], argv[2]), VSTREAM_OUT);
+    vstream_fflush(VSTREAM_OUT);
+    vstring_free(buf);
+    return (0);
+}
+
+#endif