| 1 | /***********************************************************
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| 2 | Copyright 1991-1997 by Stichting Mathematisch Centrum, Amsterdam,
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| 3 | The Netherlands.
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| 4 |
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| 5 | All Rights Reserved
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| 6 |
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| 7 | Permission to use, copy, modify, and distribute this software and its
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| 8 | documentation for any purpose and without fee is hereby granted,
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| 9 | provided that the above copyright notice appear in all copies and that
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| 10 | both that copyright notice and this permission notice appear in
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| 11 | supporting documentation, and that the names of Stichting Mathematisch
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| 12 | Centrum or CWI not be used in advertising or publicity pertaining to
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| 13 | distribution of the software without specific, written prior permission.
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| 14 |
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| 15 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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| 16 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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| 17 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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| 18 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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| 19 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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| 20 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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| 21 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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| 22 |
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| 23 | ******************************************************************/
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| 24 |
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| 25 |
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| 26 | #include "Python.h"
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| 27 | #include "pymactoolbox.h"
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| 28 | #include <arpa/inet.h> /* for ntohl, htonl */
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| 29 |
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| 30 |
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| 31 | /* Like strerror() but for Mac OS error numbers */
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| 32 | char *
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| 33 | PyMac_StrError(int err)
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| 34 | {
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| 35 | static char buf[256];
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| 36 | PyObject *m;
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| 37 | PyObject *rv;
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| 38 |
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| 39 | m = PyImport_ImportModule("MacOS");
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| 40 | if (!m) {
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| 41 | if (Py_VerboseFlag)
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| 42 | PyErr_Print();
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| 43 | PyErr_Clear();
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| 44 | rv = NULL;
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| 45 | }
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| 46 | else {
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| 47 | rv = PyObject_CallMethod(m, "GetErrorString", "i", err);
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| 48 | if (!rv)
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| 49 | PyErr_Clear();
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| 50 | }
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| 51 | if (!rv) {
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| 52 | buf[0] = '\0';
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| 53 | }
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| 54 | else {
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| 55 | char *input = PyString_AsString(rv);
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| 56 | if (!input) {
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| 57 | PyErr_Clear();
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| 58 | buf[0] = '\0';
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| 59 | } else {
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| 60 | strncpy(buf, input, sizeof(buf) - 1);
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| 61 | buf[sizeof(buf) - 1] = '\0';
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| 62 | }
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| 63 | Py_DECREF(rv);
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| 64 | }
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| 65 | Py_XDECREF(m);
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| 66 | return buf;
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| 67 | }
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| 68 |
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| 69 | /* Exception object shared by all Mac specific modules for Mac OS errors */
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| 70 | PyObject *PyMac_OSErrException;
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| 71 |
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| 72 | /* Initialize and return PyMac_OSErrException */
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| 73 | PyObject *
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| 74 | PyMac_GetOSErrException(void)
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| 75 | {
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| 76 | if (PyMac_OSErrException == NULL)
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| 77 | PyMac_OSErrException = PyErr_NewException("MacOS.Error", NULL, NULL);
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| 78 | return PyMac_OSErrException;
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| 79 | }
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| 80 |
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| 81 | /* Set a MAC-specific error from errno, and return NULL; return None if no error */
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| 82 | PyObject *
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| 83 | PyErr_Mac(PyObject *eobj, int err)
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| 84 | {
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| 85 | char *msg;
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| 86 | PyObject *v;
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| 87 |
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| 88 | if (err == 0 && !PyErr_Occurred()) {
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| 89 | Py_INCREF(Py_None);
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| 90 | return Py_None;
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| 91 | }
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| 92 | if (err == -1 && PyErr_Occurred())
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| 93 | return NULL;
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| 94 | msg = PyMac_StrError(err);
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| 95 | v = Py_BuildValue("(is)", err, msg);
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| 96 | PyErr_SetObject(eobj, v);
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| 97 | Py_DECREF(v);
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| 98 | return NULL;
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| 99 | }
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| 100 |
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| 101 | /* Call PyErr_Mac with PyMac_OSErrException */
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| 102 | PyObject *
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| 103 | PyMac_Error(OSErr err)
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| 104 | {
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| 105 | return PyErr_Mac(PyMac_GetOSErrException(), err);
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| 106 | }
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| 107 |
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| 108 |
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| 109 | OSErr
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| 110 | PyMac_GetFullPathname(FSSpec *fss, char *path, int len)
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| 111 | {
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| 112 | PyObject *fs, *exc;
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| 113 | PyObject *rv = NULL;
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| 114 | char *input;
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| 115 | OSErr err = noErr;
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| 116 |
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| 117 | *path = '\0';
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| 118 |
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| 119 | fs = PyMac_BuildFSSpec(fss);
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| 120 | if (!fs)
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| 121 | goto error;
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| 122 |
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| 123 | rv = PyObject_CallMethod(fs, "as_pathname", "");
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| 124 | if (!rv)
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| 125 | goto error;
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| 126 |
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| 127 | input = PyString_AsString(rv);
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| 128 | if (!input)
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| 129 | goto error;
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