Initial KLEE checkin.

 - Lots more tweaks, documentation, and web page content is needed,
   but this should compile & work on OS X & Linux.


git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72205 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 34 insertions, 0 deletions

diff --git a/test/Runtime/POSIX/Read1.c b/test/Runtime/POSIX/Read1.c
new file mode 100644
index 00000000..3b24bfb9
--- /dev/null
+++ b/test/Runtime/POSIX/Read1.c
@@ -0,0 +1,34 @@
+// RUN: %llvmgcc %s -emit-llvm -O0 -c -o %t.bc
+// RUN: %klee --exit-on-error --posix-runtime --init-env %t.bc --sym-files 1 8 >%t.log
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <assert.h>
+
+int main(int argc, char** argv) {
+  char buf[32];
+
+  // If count is zero, read() returns zero and has  no  other  results. (man page)
+  int x = read(0, 0, 0);
+  assert(x == 0);
+  
+  int fd = open("A", O_RDONLY);
+  assert(fd != -1);
+
+  // EFAULT buf is outside your accessible address space. (man page)
+  x = read(fd, 0, 1);
+  assert(x == -1 && errno == EFAULT);
+ 
+  // EBADF  fd is not a valid file descriptor (man page)
+  x = read(-1, buf, 1);
+  assert(x == -1 && errno == EBADF);
+
+  fd = open("A", O_RDONLY);
+  assert(fd != -1);
+  x = read(fd, buf, 1);
+  assert(x == 1);  
+}
+