Imported Upstream version 3.5.gitupstream/3.5.gitupstream

1 files changed, 114 insertions, 0 deletions

diff --git a/deltarpmmodule.c b/deltarpmmodule.c
new file mode 100644
index 0000000..4922d07
--- /dev/null
+++ b/deltarpmmodule.c
@@ -0,0 +1,114 @@
+/* Copyright 2009 Red Hat, Inc.
+ *
+ * This program is licensed under the BSD license, read LICENSE.BSD
+ * for further information
+ */
+
+#include "Python.h"
+#include "marshal.h"
+#include "cfile.h"
+#include "deltarpm.h"
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+PyObject *createDict(struct deltarpm d)
+{
+  PyObject *dict;
+  PyObject *o;
+  
+  dict = PyDict_New();
+  
+  /* Old NEVR */
+  if (d.nevr) {
+    o = PyString_FromString(d.nevr);
+    PyDict_SetItemString(dict, "old_nevr", o);
+    Py_DECREF(o);
+  } else {
+    PyDict_SetItemString(dict, "old_nevr", Py_None);
+  }
+  
+  /* New NEVR */
+  if (d.targetnevr) {
+    o = PyString_FromString(d.targetnevr);
+    PyDict_SetItemString(dict, "nevr", o);
+    Py_DECREF(o);
+  } else {
+    PyDict_SetItemString(dict, "nevr", Py_None);
+  }
+  
+  /* Sequence */
+  if (d.seq) {
+    char *tmp = calloc(d.seql * 2 + 1, sizeof(char));
+    int i;
+    for (i = 0; i < d.seql; i++) {
+      char buf[3];
+      
+      snprintf(buf, 3, "%02x", d.seq[i]);
+      strcat(tmp, buf);
+    }
+    o = PyString_FromString(tmp);
+    free(tmp);
+    PyDict_SetItemString(dict, "seq", o);
+    Py_DECREF(o);
+  } else {
+    PyDict_SetItemString(dict, "seq", Py_None);
+  }
+  return dict;
+}
+
+static PyObject *doRead(PyObject *s, PyObject *args)
+{
+  char *filename;
+  struct deltarpm d;
+  PyObject *ret;
+  int pid;
+  int ipcpipe[2];
+  
+  if (!PyArg_ParseTuple(args, "s", &filename)) {
+    PyErr_SetFromErrno(PyExc_SystemError);
+    return NULL;
+  }
+
+  /* The delta rpm code does not expect to be used in its way. Its error handling
+   * conststs of 'printf' and 'exit'. So, dirty hacks abound. */
+  if (pipe(ipcpipe) == -1) {
+    PyErr_SetFromErrno(PyExc_SystemError);
+    return NULL;
+  }
+
+  if ((pid = fork())) {
+    FILE *readend = fdopen(ipcpipe[0], "r");
+    int rc, status;
+
+    rc = waitpid(pid, &status, 0);
+    if (rc == -1 || (WIFEXITED(status) && WEXITSTATUS(status) != 0)) {
+      PyErr_SetFromErrno(PyExc_SystemError);
+      return NULL;
+    }
+    ret = PyMarshal_ReadObjectFromFile(readend);
+    fclose(readend);
+  } else {
+    FILE *writend = fdopen(ipcpipe[1], "w");
+
+    readdeltarpm(filename, &d, NULL);
+    PyMarshal_WriteObjectToFile(createDict(d), writend, Py_MARSHAL_VERSION);
+    fclose(writend);
+    _exit(0);
+  }
+  close(ipcpipe[1]);
+  return ret;
+}
+
+static PyMethodDef deltarpmMethods[] = {
+  { "read", (PyCFunction) doRead, METH_VARARGS, NULL },
+  { NULL }
+};
+
+void init_deltarpm(void)
+{
+  PyObject *m;
+  
+  m = Py_InitModule("_deltarpm", deltarpmMethods);
+}