File: | src/xkb/XKBList.c |
Location: | line 183, column 9 |
Description: | Value stored to 'str' is never read |
1 | /************************************************************ |
2 | Copyright (c) 1995 by Silicon Graphics Computer Systems, Inc. |
3 | |
4 | Permission to use, copy, modify, and distribute this |
5 | software and its documentation for any purpose and without |
6 | fee is hereby granted, provided that the above copyright |
7 | notice appear in all copies and that both that copyright |
8 | notice and this permission notice appear in supporting |
9 | documentation, and that the name of Silicon Graphics not be |
10 | used in advertising or publicity pertaining to distribution |
11 | of the software without specific prior written permission. |
12 | Silicon Graphics makes no representation about the suitability |
13 | of this software for any purpose. It is provided "as is" |
14 | without any express or implied warranty. |
15 | |
16 | SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS |
17 | SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY |
18 | AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON |
19 | GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
20 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
21 | DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE |
22 | OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH |
23 | THE USE OR PERFORMANCE OF THIS SOFTWARE. |
24 | |
25 | ********************************************************/ |
26 | |
27 | #define NEED_MAP_READERS |
28 | #ifdef HAVE_CONFIG_H1 |
29 | #include <config.h> |
30 | #endif |
31 | #include "Xlibint.h" |
32 | #include <X11/extensions/XKBproto.h> |
33 | #include "XKBlibint.h" |
34 | |
35 | /***====================================================================***/ |
36 | |
37 | static void |
38 | _FreeComponentNames(int num, XkbComponentNamePtr names) |
39 | { |
40 | int i; |
41 | XkbComponentNamePtr tmp; |
42 | |
43 | if ((num < 1) || (names == NULL((void*)0))) |
44 | return; |
45 | for (i = 0, tmp = names; i < num; i++, tmp++) { |
46 | if (tmp->name) { |
47 | _XkbFree(tmp->name)free((tmp->name)); |
48 | tmp->name = NULL((void*)0); |
49 | } |
50 | } |
51 | _XkbFree(names)free((names)); |
52 | return; |
53 | } |
54 | |
55 | /***====================================================================***/ |
56 | |
57 | static XkbComponentNamePtr |
58 | _ReadListing(XkbReadBufferPtr buf, int count, Statusint * status_rtrn) |
59 | { |
60 | XkbComponentNamePtr first, this; |
61 | register int i; |
62 | CARD16 *flags; |
63 | int slen, wlen; |
64 | char *str; |
65 | |
66 | if (count < 1) |
67 | return NULL((void*)0); |
68 | first = _XkbTypedCalloc(count, XkbComponentNameRec)((XkbComponentNameRec *)calloc((((count)) == 0 ? 1 : ((count) )), (sizeof(XkbComponentNameRec)))); |
69 | if (!first) |
70 | return NULL((void*)0); |
71 | for (this = first, i = 0; i < count; i++, this++) { |
72 | flags = (CARD16 *) _XkbGetReadBufferPtr(buf, 2 * sizeof(CARD16)); |
73 | if (!flags) |
74 | goto BAILOUT; |
75 | this->flags = flags[0]; |
76 | slen = flags[1]; |
77 | wlen = ((slen + 1) / 2) * 2; /* pad to 2 byte boundary */ |
78 | this->name = _XkbTypedCalloc(slen + 1, char)((char *)calloc((((slen + 1)) == 0 ? 1 : ((slen + 1))), (sizeof (char)))); |
79 | |
80 | if (!this->name) |
81 | goto BAILOUT; |
82 | str = (char *) _XkbGetReadBufferPtr(buf, wlen); |
83 | if (!str) |
84 | goto BAILOUT; |
85 | memcpy(this->name, str, slen)__builtin___memcpy_chk (this->name, str, slen, __builtin_object_size (this->name, 0)); |
86 | } |
87 | return first; |
88 | BAILOUT: |
89 | *status_rtrn = BadAlloc11; |
90 | _FreeComponentNames(i, first); |
91 | return NULL((void*)0); |
92 | } |
93 | |
94 | /***====================================================================***/ |
95 | |
96 | XkbComponentListPtr |
97 | XkbListComponents(Display *dpy, |
98 | unsigned deviceSpec, |
99 | XkbComponentNamesPtr ptrns, |
100 | int *max_inout) |
101 | { |
102 | register xkbListComponentsReq *req; |
103 | xkbListComponentsReply rep; |
104 | XkbInfoPtr xkbi; |
105 | XkbComponentListPtr list; |
106 | XkbReadBufferRec buf; |
107 | int left; |
108 | char *str; |
109 | int extraLen, len, mapLen, codesLen, typesLen, compatLen, symsLen, geomLen; |
110 | |
111 | if ((dpy == NULL((void*)0)) || (dpy->flags & XlibDisplayNoXkb(1L << 2)) || |
112 | (!dpy->xkb_info && !XkbUseExtension(dpy, NULL((void*)0), NULL((void*)0))) || |
113 | (ptrns == NULL((void*)0)) || (max_inout == NULL((void*)0))) |
114 | return NULL((void*)0); |
115 | |
116 | xkbi = dpy->xkb_info; |
117 | LockDisplay(dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
118 | GetReq(kbListComponents, req)req = (xkbListComponentsReq *) _XGetRequest(dpy, 22, 8); |
119 | req->reqType = xkbi->codes->major_opcode; |
120 | req->xkbReqType = X_kbListComponents22; |
121 | req->deviceSpec = deviceSpec; |
122 | req->maxNames = *max_inout; |
123 | |
124 | mapLen = codesLen = typesLen = compatLen = symsLen = geomLen = 0; |
125 | if (ptrns->keymap) |
126 | mapLen = (int) strlen(ptrns->keymap); |
127 | if (ptrns->keycodes) |
128 | codesLen = (int) strlen(ptrns->keycodes); |
129 | if (ptrns->types) |
130 | typesLen = (int) strlen(ptrns->types); |
131 | if (ptrns->compat) |
132 | compatLen = (int) strlen(ptrns->compat); |
133 | if (ptrns->symbols) |
134 | symsLen = (int) strlen(ptrns->symbols); |
135 | if (ptrns->geometry) |
136 | geomLen = (int) strlen(ptrns->geometry); |
137 | if (mapLen > 255) |
138 | mapLen = 255; |
139 | if (codesLen > 255) |
140 | codesLen = 255; |
141 | if (typesLen > 255) |
142 | typesLen = 255; |
143 | if (compatLen > 255) |
144 | compatLen = 255; |
145 | if (symsLen > 255) |
146 | symsLen = 255; |
147 | if (geomLen > 255) |
148 | geomLen = 255; |
149 | |
150 | len = mapLen + codesLen + typesLen + compatLen + symsLen + geomLen + 6; |
151 | len = XkbPaddedSize(len)((((unsigned int)(len)+3) >> 2) << 2); |
152 | req->length += len / 4; |
153 | BufAlloc(char *, str, len)if (dpy->bufptr + (len) > dpy->bufmax) _XFlush (dpy) ; str = (char *) dpy->bufptr; __builtin___memset_chk (str, '\0', len, __builtin_object_size (str, 0)); dpy->bufptr += (len);; |
154 | |
155 | *str++ = mapLen; |
156 | if (mapLen > 0) { |
157 | memcpy(str, ptrns->keymap, mapLen)__builtin___memcpy_chk (str, ptrns->keymap, mapLen, __builtin_object_size (str, 0)); |
158 | str += mapLen; |
159 | } |
160 | *str++ = codesLen; |
161 | if (codesLen > 0) { |
162 | memcpy(str, ptrns->keycodes, codesLen)__builtin___memcpy_chk (str, ptrns->keycodes, codesLen, __builtin_object_size (str, 0)); |
163 | str += codesLen; |
164 | } |
165 | *str++ = typesLen; |
166 | if (typesLen > 0) { |
167 | memcpy(str, ptrns->types, typesLen)__builtin___memcpy_chk (str, ptrns->types, typesLen, __builtin_object_size (str, 0)); |
168 | str += typesLen; |
169 | } |
170 | *str++ = compatLen; |
171 | if (compatLen > 0) { |
172 | memcpy(str, ptrns->compat, compatLen)__builtin___memcpy_chk (str, ptrns->compat, compatLen, __builtin_object_size (str, 0)); |
173 | str += compatLen; |
174 | } |
175 | *str++ = symsLen; |
176 | if (symsLen > 0) { |
177 | memcpy(str, ptrns->symbols, symsLen)__builtin___memcpy_chk (str, ptrns->symbols, symsLen, __builtin_object_size (str, 0)); |
178 | str += symsLen; |
179 | } |
180 | *str++ = geomLen; |
181 | if (geomLen > 0) { |
182 | memcpy(str, ptrns->geometry, geomLen)__builtin___memcpy_chk (str, ptrns->geometry, geomLen, __builtin_object_size (str, 0)); |
183 | str += geomLen; |
Value stored to 'str' is never read | |
184 | } |
185 | if (!_XReply(dpy, (xReply *) &rep, 0, xFalse0)) |
186 | goto BAILOUT; |
187 | extraLen = (int) rep.length * 4; |
188 | *max_inout = rep.extra; |
189 | if (extraLen == 0) { /* no matches, but we don't want to report a failure */ |
190 | list = _XkbTypedCalloc(1, XkbComponentListRec)((XkbComponentListRec *)calloc((((1)) == 0 ? 1 : ((1))), (sizeof (XkbComponentListRec)))); |
191 | UnlockDisplay(dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
192 | SyncHandle()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
193 | return list; |
194 | } |
195 | if (_XkbInitReadBuffer(dpy, &buf, extraLen)) { |
196 | Statusint status = Success0; |
197 | |
198 | list = _XkbTypedCalloc(1, XkbComponentListRec)((XkbComponentListRec *)calloc((((1)) == 0 ? 1 : ((1))), (sizeof (XkbComponentListRec)))); |
199 | if (!list) { |
200 | _XkbFreeReadBuffer(&buf); |
201 | goto BAILOUT; |
202 | } |
203 | list->num_keymaps = rep.nKeymaps; |
204 | list->num_keycodes = rep.nKeycodes; |
205 | list->num_types = rep.nTypes; |
206 | list->num_compat = rep.nCompatMaps; |
207 | list->num_symbols = rep.nSymbols; |
208 | list->num_geometry = rep.nGeometries; |
209 | if ((status == Success0) && (list->num_keymaps > 0)) |
210 | list->keymaps = _ReadListing(&buf, list->num_keymaps, &status); |
211 | if ((status == Success0) && (list->num_keycodes > 0)) |
212 | list->keycodes = _ReadListing(&buf, list->num_keycodes, &status); |
213 | if ((status == Success0) && (list->num_types > 0)) |
214 | list->types = _ReadListing(&buf, list->num_types, &status); |
215 | if ((status == Success0) && (list->num_compat > 0)) |
216 | list->compat = _ReadListing(&buf, list->num_compat, &status); |
217 | if ((status == Success0) && (list->num_symbols > 0)) |
218 | list->symbols = _ReadListing(&buf, list->num_symbols, &status); |
219 | if ((status == Success0) && (list->num_geometry > 0)) |
220 | list->geometry = _ReadListing(&buf, list->num_geometry, &status); |
221 | left = _XkbFreeReadBuffer(&buf); |
222 | if ((status != Success0) || (buf.error) || (left > 2)) { |
223 | XkbFreeComponentList(list); |
224 | goto BAILOUT; |
225 | } |
226 | UnlockDisplay(dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
227 | SyncHandle()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
228 | return list; |
229 | } |
230 | BAILOUT: |
231 | UnlockDisplay(dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
232 | SyncHandle()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
233 | return NULL((void*)0); |
234 | } |
235 | |
236 | void |
237 | XkbFreeComponentList(XkbComponentListPtr list) |
238 | { |
239 | if (list) { |
240 | if (list->keymaps) |
241 | _FreeComponentNames(list->num_keymaps, list->keymaps); |
242 | if (list->keycodes) |
243 | _FreeComponentNames(list->num_keycodes, list->keycodes); |
244 | if (list->types) |
245 | _FreeComponentNames(list->num_types, list->types); |
246 | if (list->compat) |
247 | _FreeComponentNames(list->num_compat, list->compat); |
248 | if (list->symbols) |
249 | _FreeComponentNames(list->num_symbols, list->symbols); |
250 | if (list->geometry) |
251 | _FreeComponentNames(list->num_geometry, list->geometry); |
252 | bzero((char *) list, sizeof(XkbComponentListRec))__builtin___memset_chk ((char *) list, 0, sizeof(XkbComponentListRec ), __builtin_object_size ((char *) list, 0)); |
253 | _XkbFree(list)free((list)); |
254 | } |
255 | return; |
256 | } |