sfeed

commit dd0baa3e7b32fb66f2f8c1fa8cb41cae3f4feca4
parent 351877b7621671dc107ed40341820f65ba0116a5
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Fri,  2 Jan 2015 14:35:26 +0100

compat: separate compat stuff, strlcpy atm

Diffstat:
A
compat.h
 | 
2
++
A
compat/strlcpy.c
 | 
48
++++++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 50 insertions(+), 0 deletions(-)
diff --git a/compat.h b/compat.h
@@ -0,0 +1,2 @@
+#undef strlcpy
+size_t strlcpy(char *, const char *, size_t);
diff --git a/compat/strlcpy.c b/compat/strlcpy.c
@@ -0,0 +1,48 @@
+/*
+ * 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 <string.h>
+#include <sys/types.h>
+
+#include "util.h"
+
+/*
+ * 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.
+ */
+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 */
+}