1 files changed, 79 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/roken/putenv.c b/third_party/heimdal/lib/roken/putenv.c
new file mode 100644
index 00000000000..647eb7a348b
--- /dev/null
+++ b/third_party/heimdal/lib/roken/putenv.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#if !HAVE_DECL_ENVIRON
+extern char **environ;
+#endif
+
+/*
+ * putenv --
+ *	String points to a string of the form name=value.
+ *
+ *      Makes the value of the environment variable name equal to
+ *      value by altering an existing variable or creating a new one.
+ */
+
+ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
+putenv(const char *string)
+{
+    int i;
+    const char *eq = (const char *)strchr(string, '=');
+    int len;
+
+    if (eq == NULL)
+	return 1;
+    len = eq - string;
+
+    if(environ == NULL) {
+	environ = malloc(sizeof(char*));
+	if(environ == NULL)
+	    return 1;
+	environ[0] = NULL;
+    }
+
+    for(i = 0; environ[i] != NULL; i++)
+	if(strncmp(string, environ[i], len) == 0) {
+	    environ[i] = string;
+	    return 0;
+	}
+    environ = realloc(environ, sizeof(char*) * (i + 2));
+    if(environ == NULL)
+	return 1;
+    environ[i]   = string;
+    environ[i+1] = NULL;
+    return 0;
+}