| File: | src/xkb/XKBCompat.c |
| Location: | line 208, column 9 |
| Description: | Value stored to 'buf' is never read |
| 1 | /************************************************************ |
| 2 | Copyright (c) 1993 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 | #ifdef HAVE_CONFIG_H1 |
| 28 | #include <config.h> |
| 29 | #endif |
| 30 | #include <stdio.h> |
| 31 | #define NEED_MAP_READERS |
| 32 | #include "Xlibint.h" |
| 33 | #include <X11/extensions/XKBproto.h> |
| 34 | #include "XKBlibint.h" |
| 35 | |
| 36 | Statusint |
| 37 | _XkbReadGetCompatMapReply(Display *dpy, |
| 38 | xkbGetCompatMapReply *rep, |
| 39 | XkbDescPtr xkb, |
| 40 | int *nread_rtrn) |
| 41 | { |
| 42 | register int i; |
| 43 | XkbReadBufferRec buf; |
| 44 | |
| 45 | if (!_XkbInitReadBuffer(dpy, &buf, (int) rep->length * 4)) |
| 46 | return BadAlloc11; |
| 47 | |
| 48 | if (nread_rtrn) |
| 49 | *nread_rtrn = (int) rep->length * 4; |
| 50 | |
| 51 | i = rep->firstSI + rep->nSI; |
| 52 | if ((!xkb->compat) && |
| 53 | (XkbAllocCompatMap(xkb, XkbAllCompatMask(0x3), i) != Success0)) |
| 54 | return BadAlloc11; |
| 55 | |
| 56 | if (rep->nSI != 0) { |
| 57 | XkbSymInterpretRec *syms; |
| 58 | xkbSymInterpretWireDesc *wire; |
| 59 | |
| 60 | wire = (xkbSymInterpretWireDesc *) _XkbGetReadBufferPtr(&buf, |
| 61 | rep->nSI * SIZEOF (xkbSymInterpretWireDesc)16); |
| 62 | if (wire == NULL((void*)0)) |
| 63 | goto BAILOUT; |
| 64 | syms = &xkb->compat->sym_interpret[rep->firstSI]; |
| 65 | |
| 66 | for (i = 0; i < rep->nSI; i++, syms++, wire++) { |
| 67 | syms->sym = wire->sym; |
| 68 | syms->mods = wire->mods; |
| 69 | syms->match = wire->match; |
| 70 | syms->virtual_mod = wire->virtualMod; |
| 71 | syms->flags = wire->flags; |
| 72 | syms->act = *((XkbAnyAction *) &wire->act); |
| 73 | } |
| 74 | xkb->compat->num_si += rep->nSI; |
| 75 | } |
| 76 | |
| 77 | if (rep->groups & XkbAllGroupsMask(0xf)) { |
| 78 | register unsigned bit, nGroups; |
| 79 | xkbModsWireDesc *wire; |
| 80 | |
| 81 | for (i = 0, nGroups = 0, bit = 1; i < XkbNumKbdGroups4; i++, bit <<= 1) { |
| 82 | if (rep->groups & bit) |
| 83 | nGroups++; |
| 84 | } |
| 85 | wire = (xkbModsWireDesc *) |
| 86 | _XkbGetReadBufferPtr(&buf, nGroups * SIZEOF(xkbModsWireDesc)4); |
| 87 | if (wire == NULL((void*)0)) |
| 88 | goto BAILOUT; |
| 89 | for (i = 0, bit = 1; i < XkbNumKbdGroups4; i++, bit <<= 1) { |
| 90 | if ((rep->groups & bit) == 0) |
| 91 | continue; |
| 92 | xkb->compat->groups[i].mask = wire->mask; |
| 93 | xkb->compat->groups[i].real_mods = wire->realMods; |
| 94 | xkb->compat->groups[i].vmods = wire->virtualMods; |
| 95 | wire++; |
| 96 | } |
| 97 | } |
| 98 | i = _XkbFreeReadBuffer(&buf); |
| 99 | if (i) |
| 100 | fprintf(stderr__stderrp, "CompatMapReply! Bad length (%d extra bytes)\n", i); |
| 101 | if (i || buf.error) |
| 102 | return BadLength16; |
| 103 | return Success0; |
| 104 | BAILOUT: |
| 105 | _XkbFreeReadBuffer(&buf); |
| 106 | return BadLength16; |
| 107 | } |
| 108 | |
| 109 | Statusint |
| 110 | XkbGetCompatMap(Display *dpy, unsigned which, XkbDescPtr xkb) |
| 111 | { |
| 112 | register xkbGetCompatMapReq *req; |
| 113 | xkbGetCompatMapReply rep; |
| 114 | Statusint status; |
| 115 | XkbInfoPtr xkbi; |
| 116 | |
| 117 | if ((!dpy) || (!xkb) || (dpy->flags & XlibDisplayNoXkb(1L << 2)) || |
| 118 | ((xkb->dpy != NULL((void*)0)) && (xkb->dpy != dpy)) || |
| 119 | (!dpy->xkb_info && (!XkbUseExtension(dpy, NULL((void*)0), NULL((void*)0))))) |
| 120 | return BadAccess10; |
| 121 | LockDisplay(dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 122 | xkbi = dpy->xkb_info; |
| 123 | GetReq(kbGetCompatMap, req)req = (xkbGetCompatMapReq *) _XGetRequest(dpy, 10, 12); |
| 124 | req->reqType = xkbi->codes->major_opcode; |
| 125 | req->xkbReqType = X_kbGetCompatMap10; |
| 126 | req->deviceSpec = xkb->device_spec; |
| 127 | if (which & XkbSymInterpMask(1<<0)) |
| 128 | req->getAllSI = True1; |
| 129 | else |
| 130 | req->getAllSI = False0; |
| 131 | req->firstSI = req->nSI = 0; |
| 132 | |
| 133 | if (which & XkbGroupCompatMask(1<<1)) |
| 134 | req->groups = XkbAllGroupsMask(0xf); |
| 135 | else |
| 136 | req->groups = 0; |
| 137 | |
| 138 | if (!_XReply(dpy, (xReply *) &rep, 0, xFalse0)) { |
| 139 | UnlockDisplay(dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 140 | SyncHandle()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 141 | return BadLength16; |
| 142 | } |
| 143 | if (xkb->dpy == NULL((void*)0)) |
| 144 | xkb->dpy = dpy; |
| 145 | if (xkb->device_spec == XkbUseCoreKbd0x0100) |
| 146 | xkb->device_spec = rep.deviceID; |
| 147 | |
| 148 | status = _XkbReadGetCompatMapReply(dpy, &rep, xkb, NULL((void*)0)); |
| 149 | UnlockDisplay(dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 150 | SyncHandle()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 151 | return status; |
| 152 | } |
| 153 | |
| 154 | static Boolint |
| 155 | _XkbWriteSetCompatMap(Display *dpy, xkbSetCompatMapReq *req, XkbDescPtr xkb) |
| 156 | { |
| 157 | CARD16 firstSI; |
| 158 | CARD16 nSI; |
| 159 | int size; |
| 160 | register int i, nGroups; |
| 161 | register unsigned bit; |
| 162 | unsigned groups; |
| 163 | char *buf; |
| 164 | |
| 165 | firstSI = req->firstSI; |
| 166 | nSI = req->nSI; |
| 167 | size = nSI * SIZEOF(xkbSymInterpretWireDesc)16; |
| 168 | nGroups = 0; |
| 169 | groups = req->groups; |
| 170 | if (groups & XkbAllGroupsMask(0xf)) { |
| 171 | for (i = 0, bit = 1; i < XkbNumKbdGroups4; i++, bit <<= 1) { |
| 172 | if (groups & bit) |
| 173 | nGroups++; |
| 174 | } |
| 175 | size += SIZEOF(xkbModsWireDesc)4 * nGroups; |
| 176 | } |
| 177 | req->length += size / 4; |
| 178 | BufAlloc(char *, buf, size)if (dpy->bufptr + (size) > dpy->bufmax) _XFlush (dpy ); buf = (char *) dpy->bufptr; __builtin___memset_chk (buf , '\0', size, __builtin_object_size (buf, 0)); dpy->bufptr += (size);; |
| 179 | |
| 180 | if (!buf) |
| 181 | return False0; |
| 182 | |
| 183 | if (nSI) { |
| 184 | XkbSymInterpretPtr sym = &xkb->compat->sym_interpret[firstSI]; |
| 185 | xkbSymInterpretWireDesc *wire = (xkbSymInterpretWireDesc *) buf; |
| 186 | |
| 187 | for (i = 0; i < nSI; i++, wire++, sym++) { |
| 188 | wire->sym = (CARD32) sym->sym; |
| 189 | wire->mods = sym->mods; |
| 190 | wire->match = sym->match; |
| 191 | wire->flags = sym->flags; |
| 192 | wire->virtualMod = sym->virtual_mod; |
| 193 | memcpy(&wire->act, &sym->act, sz_xkbActionWireDesc)__builtin___memcpy_chk (&wire->act, &sym->act, 8 , __builtin_object_size (&wire->act, 0)); |
| 194 | } |
| 195 | buf += nSI * SIZEOF(xkbSymInterpretWireDesc)16; |
| 196 | } |
| 197 | if (groups & XkbAllGroupsMask(0xf)) { |
| 198 | xkbModsWireDesc *out = (xkbModsWireDesc *) buf; |
| 199 | |
| 200 | for (i = 0, bit = 1; i < XkbNumKbdGroups4; i++, bit <<= 1) { |
| 201 | if ((groups & bit) != 0) { |
| 202 | out->mask = xkb->compat->groups[i].mask; |
| 203 | out->realMods = xkb->compat->groups[i].real_mods; |
| 204 | out->virtualMods = xkb->compat->groups[i].vmods; |
| 205 | out++; |
| 206 | } |
| 207 | } |
| 208 | buf += nGroups * SIZEOF(xkbModsWireDesc)4; |
Value stored to 'buf' is never read | |
| 209 | } |
| 210 | return True1; |
| 211 | } |
| 212 | |
| 213 | Boolint |
| 214 | XkbSetCompatMap(Display *dpy, unsigned which, XkbDescPtr xkb, |
| 215 | Boolint updateActions) |
| 216 | { |
| 217 | register xkbSetCompatMapReq *req; |
| 218 | Statusint ok; |
| 219 | XkbInfoPtr xkbi; |
| 220 | |
| 221 | if ((dpy->flags & XlibDisplayNoXkb(1L << 2)) || (dpy != xkb->dpy) || |
| 222 | (!dpy->xkb_info && !XkbUseExtension(dpy, NULL((void*)0), NULL((void*)0)))) |
| 223 | return False0; |
| 224 | if ((!xkb->compat) || |
| 225 | ((which & XkbSymInterpMask(1<<0)) && (!xkb->compat->sym_interpret))) |
| 226 | return False0; |
| 227 | LockDisplay(dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->lock_display )(dpy); |
| 228 | xkbi = dpy->xkb_info; |
| 229 | GetReq(kbSetCompatMap, req)req = (xkbSetCompatMapReq *) _XGetRequest(dpy, 11, 16); |
| 230 | req->reqType = xkbi->codes->major_opcode; |
| 231 | req->xkbReqType = X_kbSetCompatMap11; |
| 232 | req->deviceSpec = xkb->device_spec; |
| 233 | req->recomputeActions = updateActions; |
| 234 | if (which & XkbSymInterpMask(1<<0)) { |
| 235 | req->truncateSI = True1; |
| 236 | req->firstSI = 0; |
| 237 | req->nSI = xkb->compat->num_si; |
| 238 | } |
| 239 | else { |
| 240 | req->truncateSI = False0; |
| 241 | req->firstSI = 0; |
| 242 | req->nSI = 0; |
| 243 | } |
| 244 | if (which & XkbGroupCompatMask(1<<1)) |
| 245 | req->groups = XkbAllGroupsMask(0xf); |
| 246 | else |
| 247 | req->groups = 0; |
| 248 | ok = _XkbWriteSetCompatMap(dpy, req, xkb); |
| 249 | UnlockDisplay(dpy)if ((dpy)->lock_fns) (*(dpy)->lock_fns->unlock_display )(dpy); |
| 250 | SyncHandle()if (dpy->synchandler) (*dpy->synchandler)(dpy); |
| 251 | return ok; |
| 252 | } |