Initial Spring 2016 commit.

userland/include/stdlib.h

@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
+ *	The President and Fellows of Harvard College.
+ *
+ * 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 University 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 UNIVERSITY 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 UNIVERSITY 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.
+ */
+
+#ifndef _STDLIB_H_
+#define _STDLIB_H_
+
+#include <kern/types.h>
+#include <types/size_t.h>
+#include <sys/null.h>
+
+/*
+ * Ascii to integer - turn a string holding a number into a number.
+ */
+int atoi(const char *);
+
+/*
+ * Standard routine to bail out of a program in a severe error condition.
+ */
+void abort(void);
+
+/*
+ * Routine to exit cleanly.
+ * (This does libc cleanup before calling the _exit system call.)
+ */
+void exit(int code);
+
+/*
+ * Get the value of an environment variable. A default environment is
+ * provided if the kernel doesn't pass environment strings.
+ */
+char *getenv(const char *var);
+
+/*
+ * Run a command. Returns its exit status as it comes back from waitpid().
+ */
+int system(const char *command);
+
+/*
+ * Pseudo-random number generator.
+ */
+#define RAND_MAX  0x7fffffff
+long random(void);
+void srandom(unsigned long seed);
+char *initstate(unsigned long, char *, size_t);
+char *setstate(char *);
+
+/*
+ * Memory allocation functions.
+ */
+void *malloc(size_t size);
+void free(void *ptr);
+
+/*
+ * Sort.
+ */
+void qsort(void *data, unsigned num, size_t size,
+	   int (*f)(const void *, const void *));
+
+#endif /* _STDLIB_H_ */