diff options
| -rw-r--r-- | iutil.py | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/iutil.py b/iutil.py new file mode 100644 index 000000000..b87ed6137 --- /dev/null +++ b/iutil.py @@ -0,0 +1,41 @@ + +import types, os, sys + +def getfd(filespec, readOnly = 0): + if type(filespec) == types.IntType: + return filespec + if filespec == None: + filespec = "/dev/null" + + flags = os.O_RDWR | os.O_CREAT + if (readOnly): + flags = os.O_RDONLY + return os.open(filespec, flags) + +def execWithRedirect(command, argv, stdin = 0, stdout = 1, stderr = 2, + searchPath = 0): + stdin = getfd(stdin) + stdout = getfd(stdout) + stderr = getfd(stderr) + + childpid = os.fork() + if (not childpid): + if stdin != 0: + os.dup2(stdin, 0) + os.close(stdin) + if stdout != 1: + os.dup2(stdout, 1) + os.close(stdout) + if stderr != 2: + os.dup2(stderr, 2) + os.close(stderr) + + if (searchPath): + os.execvp(command, argv) + else: + os.execv(command, argv) + + sys.exit(1) + status = os.waitpid(childpid, 0) + + |