add tag v1_8_6_5001v1_8_6_5001

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_6_5001@13304 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 26 insertions, 0 deletions

diff --git a/ruby_1_8_6/missing/strstr.c b/ruby_1_8_6/missing/strstr.c
new file mode 100644
index 0000000000..1673518f06
--- /dev/null
+++ b/ruby_1_8_6/missing/strstr.c
@@ -0,0 +1,26 @@
+/* public domain rewrite of strstr(3) */
+
+char *
+strstr(haystack, needle)
+    char *haystack, *needle;
+{
+    char *hend;
+    char *a, *b;
+
+    if (*needle == 0) return haystack;
+    hend = haystack + strlen(haystack) - strlen(needle) + 1;
+    while (haystack < hend) {
+	if (*haystack == *needle) {
+	    a = haystack;
+	    b = needle;
+	    for (;;) {
+		if (*b == 0) return haystack;
+		if (*a++ != *b++) {
+		    break;
+		}
+	    }
+	}
+	haystack++;
+    }
+    return 0;
+}