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Commit | Line | Data |
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b2c19614 BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> | |
4fadb128 | 5 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> |
b2c19614 BV |
6 | * |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
73191416 | 21 | #include "sigrokdecode.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */ |
451680f1 | 22 | #include "sigrokdecode-internal.h" |
15969949 | 23 | #include "config.h" |
b2c19614 | 24 | |
b2c19614 | 25 | /** |
511e2123 | 26 | * Get the value of a Python object's attribute, returned as a newly |
451680f1 | 27 | * allocated char *. |
b2c19614 | 28 | * |
8b4bbd2a | 29 | * @param py_obj The object to probe. |
451680f1 | 30 | * @param attr Name of the attribute to retrieve. |
8b4bbd2a | 31 | * @param outstr ptr to char * storage to be filled in. |
b2c19614 BV |
32 | * |
33 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
34 | * The 'outstr' argument points to a malloc()ed string upon success. | |
35 | */ | |
55c3c5f4 | 36 | SRD_PRIV int py_attr_as_str(PyObject *py_obj, const char *attr, char **outstr) |
b2c19614 | 37 | { |
451680f1 | 38 | PyObject *py_str; |
b2c19614 BV |
39 | int ret; |
40 | ||
451680f1 | 41 | if (!PyObject_HasAttrString(py_obj, attr)) { |
7a1712c4 UH |
42 | srd_dbg("%s object has no attribute '%s'.", |
43 | Py_TYPE(py_obj)->tp_name, attr); | |
451680f1 BV |
44 | return SRD_ERR_PYTHON; |
45 | } | |
46 | ||
47 | if (!(py_str = PyObject_GetAttrString(py_obj, attr))) { | |
2086c684 | 48 | catch_exception(""); |
451680f1 BV |
49 | return SRD_ERR_PYTHON; |
50 | } | |
51 | ||
d42fc6ee | 52 | if (!PyUnicode_Check(py_str)) { |
7a1712c4 UH |
53 | srd_dbg("%s attribute should be a string, but is a %s.", |
54 | attr, Py_TYPE(py_str)->tp_name); | |
d42fc6ee BV |
55 | Py_DecRef(py_str); |
56 | return SRD_ERR_PYTHON; | |
57 | } | |
58 | ||
451680f1 | 59 | ret = py_str_as_str(py_str, outstr); |
d42fc6ee | 60 | Py_DecRef(py_str); |
451680f1 BV |
61 | |
62 | return ret; | |
63 | } | |
64 | ||
d42fc6ee | 65 | /** |
511e2123 | 66 | * Get the value of a Python dictionary item, returned as a newly |
d42fc6ee BV |
67 | * allocated char *. |
68 | * | |
69 | * @param py_obj The dictionary to probe. | |
70 | * @param attr Key of the item to retrieve. | |
71 | * @param outstr ptr to char * storage to be filled in. | |
72 | * | |
73 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
74 | * The 'outstr' argument points to a malloc()ed string upon success. | |
75 | */ | |
55c3c5f4 UH |
76 | SRD_PRIV int py_dictitem_as_str(PyObject *py_obj, const char *key, |
77 | char **outstr) | |
d42fc6ee BV |
78 | { |
79 | PyObject *py_value; | |
80 | int ret; | |
81 | ||
82 | if (!PyDict_Check(py_obj)) { | |
c9bfccc6 UH |
83 | srd_dbg("Object is a %s, not a dictionary.", |
84 | Py_TYPE(py_obj)->tp_name); | |
d42fc6ee BV |
85 | return SRD_ERR_PYTHON; |
86 | } | |
87 | ||
88 | if (!(py_value = PyDict_GetItemString(py_obj, key))) { | |
7a1712c4 | 89 | srd_dbg("Dictionary has no attribute '%s'.", key); |
d42fc6ee BV |
90 | return SRD_ERR_PYTHON; |
91 | } | |
92 | ||
93 | if (!PyUnicode_Check(py_value)) { | |
c9bfccc6 UH |
94 | srd_dbg("Dictionary value for %s should be a string, but is " |
95 | "a %s.", key, Py_TYPE(py_value)->tp_name); | |
d42fc6ee BV |
96 | return SRD_ERR_PYTHON; |
97 | } | |
98 | ||
99 | ret = py_str_as_str(py_value, outstr); | |
100 | ||
101 | return SRD_OK; | |
102 | } | |
103 | ||
451680f1 | 104 | /** |
511e2123 | 105 | * Get the value of a Python unicode string object, returned as a newly |
451680f1 BV |
106 | * allocated char *. |
107 | * | |
108 | * @param py_str The unicode string object. | |
109 | * @param outstr ptr to char * storage to be filled in. | |
110 | * | |
111 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
112 | * The 'outstr' argument points to a malloc()ed string upon success. | |
113 | */ | |
55c3c5f4 | 114 | SRD_PRIV int py_str_as_str(PyObject *py_str, char **outstr) |
451680f1 BV |
115 | { |
116 | PyObject *py_encstr; | |
117 | int ret; | |
118 | char *str; | |
119 | ||
120 | py_encstr = NULL; | |
8b4bbd2a BV |
121 | str = NULL; |
122 | ret = SRD_OK; | |
123 | ||
451680f1 | 124 | if (!PyUnicode_Check(py_str)) { |
c9bfccc6 UH |
125 | srd_dbg("Object is a %s, not a string object.", |
126 | Py_TYPE(py_str)->tp_name); | |
8b4bbd2a BV |
127 | ret = SRD_ERR_PYTHON; |
128 | goto err_out; | |
b2c19614 BV |
129 | } |
130 | ||
5f802ec6 | 131 | if (!(py_encstr = PyUnicode_AsEncodedString(py_str, "utf-8", NULL))) { |
8b4bbd2a BV |
132 | ret = SRD_ERR_PYTHON; |
133 | goto err_out; | |
5f802ec6 BV |
134 | } |
135 | if (!(str = PyBytes_AS_STRING(py_encstr))) { | |
8b4bbd2a BV |
136 | ret = SRD_ERR_PYTHON; |
137 | goto err_out; | |
b2c19614 BV |
138 | } |
139 | ||
140 | if (!(*outstr = g_strdup(str))) { | |
a61ece20 | 141 | srd_dbg("Failed to g_malloc() outstr."); |
b2c19614 | 142 | ret = SRD_ERR_MALLOC; |
8b4bbd2a | 143 | goto err_out; |
b2c19614 BV |
144 | } |
145 | ||
8b4bbd2a | 146 | err_out: |
8b4bbd2a BV |
147 | if (py_encstr) |
148 | Py_XDECREF(py_encstr); | |
b2c19614 | 149 | |
451680f1 | 150 | if (PyErr_Occurred()) { |
2086c684 | 151 | catch_exception("string conversion failed"); |
451680f1 | 152 | } |
b2c19614 BV |
153 | |
154 | return ret; | |
155 | } | |
156 | ||
15969949 | 157 | /** |
511e2123 | 158 | * Convert a Python list of unicode strings to a NULL-terminated UTF8-encoded |
56bf4c20 | 159 | * char * array. The caller must g_free() each string when finished. |
451680f1 BV |
160 | * |
161 | * @param py_strlist The list object. | |
162 | * @param outstr ptr to char ** storage to be filled in. | |
163 | * | |
164 | * @return SRD_OK upon success, a (negative) error code otherwise. | |
a61ece20 | 165 | * The 'outstr' argument points to a g_malloc()ed char** upon success. |
15969949 | 166 | */ |
55c3c5f4 | 167 | SRD_PRIV int py_strlist_to_char(PyObject *py_strlist, char ***outstr) |
15969949 BV |
168 | { |
169 | PyObject *py_str; | |
170 | int list_len, i; | |
171 | char **out, *str; | |
172 | ||
173 | list_len = PyList_Size(py_strlist); | |
a61ece20 UH |
174 | if (!(out = g_try_malloc(sizeof(char *) * (list_len + 1)))) { |
175 | srd_err("Failed to g_malloc() 'out'."); | |
15969949 | 176 | return SRD_ERR_MALLOC; |
a61ece20 | 177 | } |
15969949 | 178 | for (i = 0; i < list_len; i++) { |
451680f1 | 179 | if (!(py_str = PyUnicode_AsEncodedString( |
c9bfccc6 | 180 | PyList_GetItem(py_strlist, i), "utf-8", NULL))) |
15969949 BV |
181 | return SRD_ERR_PYTHON; |
182 | if (!(str = PyBytes_AS_STRING(py_str))) | |
183 | return SRD_ERR_PYTHON; | |
184 | out[i] = g_strdup(str); | |
185 | } | |
186 | out[i] = NULL; | |
187 | *outstr = out; | |
188 | ||
189 | return SRD_OK; | |
190 | } |