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authorWynn Wolf Arbor2020-05-24 13:51:13 +0200
committerWynn Wolf Arbor2020-05-24 14:05:54 +0200
commit0822df4d5f9d4313c3dbfb54e9e4c5624fb705a5 (patch)
treed7f010db57791cd6a0b511afa08e1ce417e57965
parent53b11e33a3c95301a2849410a9d01ef1d44d2038 (diff)
downloadslowcgi-0822df4d5f9d4313c3dbfb54e9e4c5624fb705a5.tar.gz
Add strlcpy(3) from OpenBSD
The original file location in the OpenBSD tree - lib/libc/string/strlcpy.c
Diffstat (limited to '')
-rw-r--r--slowcgi.c6
-rw-r--r--strlcpy.c56
2 files changed, 62 insertions, 0 deletions
diff --git a/slowcgi.c b/slowcgi.c
index 660f95e..a422918 100644
--- a/slowcgi.c
+++ b/slowcgi.c
@@ -39,6 +39,12 @@
#include <syslog.h>
#include <unistd.h>
+#ifdef strlcpy
+#define HAVE_STRLCPY
+#else
+size_t strlcpy(char *, const char *, size_t);
+#endif
+
#ifndef __packed
#define __packed __attribute__((packed))
#endif
diff --git a/strlcpy.c b/strlcpy.c
new file mode 100644
index 0000000..a3192d5
--- /dev/null
+++ b/strlcpy.c
@@ -0,0 +1,56 @@
+/* $OpenBSD: strlcpy.c,v 1.16 2019/01/25 00:19:25 millert Exp $ */
+
+/*
+ * Copyright (c) 1998, 2015 Todd C. Miller <millert@openbsd.org>
+ *
+ * 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.
+ */
+
+#ifndef HAVE_STRLCPY
+
+#include <sys/types.h>
+#include <string.h>
+
+size_t strlcpy(char *, const char *, size_t);
+
+/*
+ * Copy string src to buffer dst of size dsize. At most dsize-1
+ * chars will be copied. Always NUL terminates (unless dsize == 0).
+ * Returns strlen(src); if retval >= dsize, truncation occurred.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t dsize)
+{
+ const char *osrc = src;
+ size_t nleft = dsize;
+
+ /* Copy as many bytes as will fit. */
+ if (nleft != 0) {
+ while (--nleft != 0) {
+ if ((*dst++ = *src++) == '\0')
+ break;
+ }
+ }
+
+ /* Not enough room in dst, add NUL and traverse rest of src. */
+ if (nleft == 0) {
+ if (dsize != 0)
+ *dst = '\0'; /* NUL-terminate dst */
+ while (*src++)
+ ;
+ }
+
+ return(src - osrc - 1); /* count does not include NUL */
+}
+
+#endif