1 files changed, 86 insertions, 0 deletions
diff --git a/src/strl.c b/src/strl.c
new file mode 100644
index 0000000..f73cf79
--- /dev/null
+++ b/src/strl.c
@@ -0,0 +1,86 @@
+/*
+ * 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.
+ */
+#include <string.h>
+
+/*
+ * 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
+redis_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 */
+}
+
+/*
+ * Appends src to string dst of size dsize (unlike strncat, dsize is the
+ * full size of dst, not space left).  At most dsize-1 characters
+ * will be copied.  Always NUL terminates (unless dsize <= strlen(dst)).
+ * Returns strlen(src) + MIN(dsize, strlen(initial dst)).
+ * If retval >= dsize, truncation occurred.
+ */
+size_t
+redis_strlcat(char *dst, const char *src, size_t dsize)
+{
+    const char *odst = dst;
+    const char *osrc = src;
+    size_t n = dsize;
+    size_t dlen;
+
+    /* Find the end of dst and adjust bytes left but don't go past end. */
+    while (n-- != 0 && *dst != '\0')
+        dst++;
+    dlen = dst - odst;
+    n = dsize - dlen;
+
+    if (n-- == 0)
+        return(dlen + strlen(src));
+    while (*src != '\0') {
+        if (n != 0) {
+            *dst++ = *src;
+            n--;
+        }
+        src++;
+    }
+    *dst = '\0';
+
+    return(dlen + (src - osrc));    /* count does not include NUL */
+}
+
+
+
+
+