1 files changed, 124 insertions, 0 deletions
diff --git a/src/util/argv_split_at.c b/src/util/argv_split_at.c
new file mode 100644
index 0000000..fcdb4ff
--- /dev/null
+++ b/src/util/argv_split_at.c
@@ -0,0 +1,124 @@
+/*++
+/* NAME
+/*	argv_split_at 3
+/* SUMMARY
+/*	string array utilities
+/* SYNOPSIS
+/*	#include <argv.h>
+/*
+/*	ARGV	*argv_split_at(string, sep)
+/*	const char *string;
+/*	int	sep;
+/*
+/*	ARGV	*argv_split_at_count(string, sep, count)
+/*	const char *string;
+/*	int	sep;
+/*	ssize_t	count;
+/*
+/*	ARGV	*argv_split_at_append(argv, string, sep)
+/*	ARGV	*argv;
+/*	const char *string;
+/*	int	sep;
+/* DESCRIPTION
+/*	argv_split_at() splits \fIstring\fR into fields using a
+/*	single separator specified in \fIsep\fR. The result is a
+/*	null-terminated string array.
+/*
+/*	argv_split_at_count() is like argv_split_at() but stops
+/*	splitting input after at most \fIcount\fR -1 times and
+/*	leaves the remainder, if any, in the last array element.
+/*	It is an error to specify a count < 1.
+/*
+/*	argv_split_at_append() performs the same operation as
+/*	argv_split_at(), but appends the result to an existing
+/*	string array.
+/* SEE ALSO
+/*	split_at(), trivial string splitter.
+/* DIAGNOSTICS
+/*	Fatal errors: memory allocation problem.
+/* 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
+/*
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+/* System libraries. */
+
+#include <sys_defs.h>
+#include <string.h>
+
+/* Application-specific. */
+
+#include <mymalloc.h>
+#include <stringops.h>
+#include <argv.h>
+#include <msg.h>
+#include <split_at.h>
+
+/* argv_split_at - split string into field array */
+
+ARGV   *argv_split_at(const char *string, int sep)
+{
+    ARGV   *argvp = argv_alloc(1);
+    char   *saved_string = mystrdup(string);
+    char   *bp = saved_string;
+    char   *arg;
+
+    while ((arg = split_at(bp, sep)) != 0) {
+	argv_add(argvp, bp, (char *) 0);
+	bp = arg;
+    }
+    argv_add(argvp, bp, (char *) 0);
+    argv_terminate(argvp);
+    myfree(saved_string);
+    return (argvp);
+}
+
+/* argv_split_at_count - split string into field array */
+
+ARGV   *argv_split_at_count(const char *string, int sep, ssize_t count)
+{
+    ARGV   *argvp = argv_alloc(1);
+    char   *saved_string = mystrdup(string);
+    char   *bp = saved_string;
+    char   *arg;
+
+    if (count < 1)
+	msg_panic("argv_split_at_count: bad count: %ld", (long) count);
+    while (count-- > 1 && (arg = split_at(bp, sep)) != 0) {
+	argv_add(argvp, bp, (char *) 0);
+	bp = arg;
+    }
+    argv_add(argvp, bp, (char *) 0);
+    argv_terminate(argvp);
+    myfree(saved_string);
+    return (argvp);
+}
+
+/* argv_split_at_append - split string into field array, append to array */
+
+ARGV   *argv_split_at_append(ARGV *argvp, const char *string, int sep)
+{
+    char   *saved_string = mystrdup(string);
+    char   *bp = saved_string;
+    char   *arg;
+
+    while ((arg = split_at(bp, sep)) != 0) {
+	argv_add(argvp, bp, (char *) 0);
+	bp = arg;
+    }
+    argv_add(argvp, bp, (char *) 0);
+    argv_terminate(argvp);
+    myfree(saved_string);
+    return (argvp);
+}