From 4beec8f055fd3b0cc4ef618cce8b52c58dd0ee08 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Wed, 6 Sep 2017 17:40:06 +0300
Subject: Add implementation

---
 libpkgconf/bsdstubs.c | 139 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 libpkgconf/bsdstubs.c

(limited to 'libpkgconf/bsdstubs.c')

diff --git a/libpkgconf/bsdstubs.c b/libpkgconf/bsdstubs.c
new file mode 100644
index 0000000..2c000ac
--- /dev/null
+++ b/libpkgconf/bsdstubs.c
@@ -0,0 +1,139 @@
+/*	$OpenBSD: strlcpy.c,v 1.10 2005/08/08 08:05:37 espie Exp $	*/
+/*	$OpenBSD: strlcat.c,v 1.12 2005/03/30 20:13:52 otto Exp $	*/
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <string.h>
+
+#include <libpkgconf/bsdstubs.h>
+#include <libpkgconf/config.h>
+
+#ifndef HAVE_STRLCPY
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+static inline size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+	char *d = dst;
+	const char *s = src;
+	size_t n = siz;
+
+	/* Copy as many bytes as will fit */
+	if (n != 0) {
+		while (--n != 0) {
+			if ((*d++ = *s++) == '\0')
+				break;
+		}
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src */
+	if (n == 0) {
+		if (siz != 0)
+			*d = '\0';		/* NUL-terminate dst */
+		while (*s++)
+			;
+	}
+
+	return(s - src - 1);	/* count does not include NUL */
+}
+#endif
+
+#ifndef HAVE_STRLCAT
+/*
+ * Appends src to string dst of size siz (unlike strncat, siz is the
+ * full size of dst, not space left).  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+static inline size_t
+strlcat(char *dst, const char *src, size_t siz)
+{
+	char *d = dst;
+	const char *s = src;
+	size_t n = siz;
+	size_t dlen;
+
+	/* Find the end of dst and adjust bytes left but don't go past end */
+	while (n-- != 0 && *d != '\0')
+		d++;
+	dlen = d - dst;
+	n = siz - dlen;
+
+	if (n == 0)
+		return(dlen + strlen(s));
+	while (*s != '\0') {
+		if (n != 1) {
+			*d++ = *s;
+			n--;
+		}
+		s++;
+	}
+	*d = '\0';
+
+	return(dlen + (s - src));	/* count does not include NUL */
+}
+#endif
+
+/*
+ * Copyright (c) 2012 William Pitcock <nenolod@dereferenced.org>.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * This software is provided 'as is' and without any warranty, express or
+ * implied.  In no event shall the authors be liable for any damages arising
+ * from the use of this software.
+ */
+
+#ifndef HAVE_STRNDUP
+/*
+ * Creates a memory buffer and copies at most 'len' characters to it.
+ * If 'len' is less than the length of the source string, truncation occured.
+ */
+static inline char *
+strndup(const char *src, size_t len)
+{
+	char *out = malloc(len + 1);
+	pkgconf_strlcpy(out, src, len + 1);
+	return out;
+}
+#endif
+
+size_t
+pkgconf_strlcpy(char *dst, const char *src, size_t siz)
+{
+	return strlcpy(dst, src, siz);
+}
+
+size_t
+pkgconf_strlcat(char *dst, const char *src, size_t siz)
+{
+	return strlcat(dst, src, siz);
+}
+
+char *
+pkgconf_strndup(const char *src, size_t len)
+{
+	return strndup(src, len);
+}
-- 
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