1 /* Copyright (C) 1999-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
18 /* This file contains compatibility definitions of functions that were
19 formerly defined as "extern inline" in string.h; it's conceivable
20 that old binaries contain references to them. */
22 #define __NO_STRING_INLINES
25 #include "shlib-compat.h"
27 #if SHLIB_COMPAT (libc, GLIBC_2_1_1, GLIBC_2_25)
28 /* These functions were removed from string.h in glibc 2.25. */
31 __old_strtok_r_1c (char *__s, char __sep, char **__nextp)
52 compat_symbol (libc, __old_strtok_r_1c, __strtok_r_1c, GLIBC_2_1_1);
55 __old_strsep_1c (char **__s, char __reject)
57 char *__retval = *__s;
58 if (__retval != NULL && (*__s = strchr (__retval, __reject)) != NULL)
62 compat_symbol (libc, __old_strsep_1c, __strsep_1c, GLIBC_2_1_1);
65 __old_strsep_2c (char **__s, char __reject1, char __reject2)
67 char *__retval = *__s;
70 char *__cp = __retval;
78 if (*__cp == __reject1 || *__cp == __reject2)
89 compat_symbol (libc, __old_strsep_2c, __strsep_2c, GLIBC_2_1_1);
92 __old_strsep_3c (char **__s, char __reject1, char __reject2, char __reject3)
94 char *__retval = *__s;
97 char *__cp = __retval;
105 if (*__cp == __reject1 || *__cp == __reject2 || *__cp == __reject3)
116 compat_symbol (libc, __old_strsep_3c, __strsep_3c, GLIBC_2_1_1);
119 #if SHLIB_COMPAT (libc, GLIBC_2_1_1, GLIBC_2_24)
120 /* These functions were removed from string.h in glibc 2.24. */
123 __old_strcspn_c1 (const char *__s, int __reject)
126 while (__s[__result] != '\0' && __s[__result] != __reject)
130 compat_symbol (libc, __old_strcspn_c1, __strcspn_c1, GLIBC_2_1_1);
133 __old_strcspn_c2 (const char *__s, int __reject1, int __reject2)
136 while (__s[__result] != '\0' && __s[__result] != __reject1
137 && __s[__result] != __reject2)
141 compat_symbol (libc, __old_strcspn_c2, __strcspn_c2, GLIBC_2_1_1);
144 __old_strcspn_c3 (const char *__s, int __reject1, int __reject2,
148 while (__s[__result] != '\0' && __s[__result] != __reject1
149 && __s[__result] != __reject2 && __s[__result] != __reject3)
153 compat_symbol (libc, __old_strcspn_c3, __strcspn_c3, GLIBC_2_1_1);
156 __old_strspn_c1 (const char *__s, int __accept)
159 /* Please note that __accept never can be '\0'. */
160 while (__s[__result] == __accept)
164 compat_symbol (libc, __old_strspn_c1, __strspn_c1, GLIBC_2_1_1);
167 __old_strspn_c2 (const char *__s, int __accept1, int __accept2)
170 /* Please note that __accept1 and __accept2 never can be '\0'. */
171 while (__s[__result] == __accept1 || __s[__result] == __accept2)
175 compat_symbol (libc, __old_strspn_c2, __strspn_c2, GLIBC_2_1_1);
178 __old_strspn_c3 (const char *__s, int __accept1, int __accept2,
182 /* Please note that __accept1 to __accept3 never can be '\0'. */
183 while (__s[__result] == __accept1 || __s[__result] == __accept2
184 || __s[__result] == __accept3)
188 compat_symbol (libc, __old_strspn_c3, __strspn_c3, GLIBC_2_1_1);
191 __old_strpbrk_c2 (const char *__s, int __accept1, int __accept2)
193 /* Please note that __accept1 and __accept2 never can be '\0'. */
194 while (*__s != '\0' && *__s != __accept1 && *__s != __accept2)
196 return *__s == '\0' ? NULL : (char *) (size_t) __s;
198 compat_symbol (libc, __old_strpbrk_c2, __strpbrk_c2, GLIBC_2_1_1);
201 __old_strpbrk_c3 (const char *__s, int __accept1, int __accept2, int __accept3)
203 /* Please note that __accept1 to __accept3 never can be '\0'. */
204 while (*__s != '\0' && *__s != __accept1 && *__s != __accept2
205 && *__s != __accept3)
207 return *__s == '\0' ? NULL : (char *) (size_t) __s;
209 compat_symbol (libc, __old_strpbrk_c3, __strpbrk_c3, GLIBC_2_1_1);
211 # if defined __mc68020__ || defined __s390__ || defined __i386__
212 # define _STRING_INLINE_unaligned 1
214 # define _STRING_INLINE_unaligned 0
215 /* These are a few types we need for the optimizations if we cannot
216 use unaligned memory accesses. */
217 # define __STRING2_COPY_TYPE(N) \
218 typedef struct { unsigned char __arr[N]; } \
219 __attribute__ ((__packed__)) __STRING2_COPY_ARR##N
220 __STRING2_COPY_TYPE (2);
221 __STRING2_COPY_TYPE (3);
222 __STRING2_COPY_TYPE (4);
223 __STRING2_COPY_TYPE (5);
224 __STRING2_COPY_TYPE (6);
225 __STRING2_COPY_TYPE (7);
226 __STRING2_COPY_TYPE (8);
227 # undef __STRING2_COPY_TYPE
230 # if _STRING_INLINE_unaligned
232 __old_mempcpy_small (void *__dest1,
233 char __src0_1, char __src2_1, char __src4_1, char __src6_1,
234 __uint16_t __src0_2, __uint16_t __src4_2,
235 __uint32_t __src0_4, __uint32_t __src4_4,
244 switch ((unsigned int) __srclen)
248 __u = __extension__ ((void *) __u + 1);
251 __u->__usi = __src0_2;
252 __u = __extension__ ((void *) __u + 2);
255 __u->__usi = __src0_2;
256 __u = __extension__ ((void *) __u + 2);
258 __u = __extension__ ((void *) __u + 1);
261 __u->__ui = __src0_4;
262 __u = __extension__ ((void *) __u + 4);
265 __u->__ui = __src0_4;
266 __u = __extension__ ((void *) __u + 4);
268 __u = __extension__ ((void *) __u + 1);
271 __u->__ui = __src0_4;
272 __u = __extension__ ((void *) __u + 4);
273 __u->__usi = __src4_2;
274 __u = __extension__ ((void *) __u + 2);
277 __u->__ui = __src0_4;
278 __u = __extension__ ((void *) __u + 4);
279 __u->__usi = __src4_2;
280 __u = __extension__ ((void *) __u + 2);
282 __u = __extension__ ((void *) __u + 1);
285 __u->__ui = __src0_4;
286 __u = __extension__ ((void *) __u + 4);
287 __u->__ui = __src4_4;
288 __u = __extension__ ((void *) __u + 4);
297 __old_mempcpy_small (void *__dest, char __src1,
298 __STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
299 __STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
300 __STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
301 __STRING2_COPY_ARR8 __src8, size_t __srclen)
305 __STRING2_COPY_ARR2 __sca2;
306 __STRING2_COPY_ARR3 __sca3;
307 __STRING2_COPY_ARR4 __sca4;
308 __STRING2_COPY_ARR5 __sca5;
309 __STRING2_COPY_ARR6 __sca6;
310 __STRING2_COPY_ARR7 __sca7;
311 __STRING2_COPY_ARR8 __sca8;
313 switch ((unsigned int) __srclen)
319 __extension__ __u->__sca2 = __src2;
322 __extension__ __u->__sca3 = __src3;
325 __extension__ __u->__sca4 = __src4;
328 __extension__ __u->__sca5 = __src5;
331 __extension__ __u->__sca6 = __src6;
334 __extension__ __u->__sca7 = __src7;
337 __extension__ __u->__sca8 = __src8;
340 return __extension__ ((void *) __u + __srclen);
343 compat_symbol (libc, __old_mempcpy_small, __mempcpy_small, GLIBC_2_1_1);
345 # if _STRING_INLINE_unaligned
347 __old_strcpy_small (char *__dest,
348 __uint16_t __src0_2, __uint16_t __src4_2,
349 __uint32_t __src0_4, __uint32_t __src4_4,
356 } *__u = (void *) __dest;
357 switch ((unsigned int) __srclen)
363 __u->__usi = __src0_2;
366 __u->__usi = __src0_2;
367 __u = __extension__ ((void *) __u + 2);
371 __u->__ui = __src0_4;
374 __u->__ui = __src0_4;
375 __u = __extension__ ((void *) __u + 4);
379 __u->__ui = __src0_4;
380 __u = __extension__ ((void *) __u + 4);
381 __u->__usi = __src4_2;
384 __u->__ui = __src0_4;
385 __u = __extension__ ((void *) __u + 4);
386 __u->__usi = __src4_2;
387 __u = __extension__ ((void *) __u + 2);
391 __u->__ui = __src0_4;
392 __u = __extension__ ((void *) __u + 4);
393 __u->__ui = __src4_4;
402 __old_strcpy_small (char *__dest,
403 __STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
404 __STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
405 __STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
406 __STRING2_COPY_ARR8 __src8, size_t __srclen)
410 __STRING2_COPY_ARR2 __sca2;
411 __STRING2_COPY_ARR3 __sca3;
412 __STRING2_COPY_ARR4 __sca4;
413 __STRING2_COPY_ARR5 __sca5;
414 __STRING2_COPY_ARR6 __sca6;
415 __STRING2_COPY_ARR7 __sca7;
416 __STRING2_COPY_ARR8 __sca8;
417 } *__u = (void *) __dest;
418 switch ((unsigned int) __srclen)
424 __extension__ __u->__sca2 = __src2;
427 __extension__ __u->__sca3 = __src3;
430 __extension__ __u->__sca4 = __src4;
433 __extension__ __u->__sca5 = __src5;
436 __extension__ __u->__sca6 = __src6;
439 __extension__ __u->__sca7 = __src7;
442 __extension__ __u->__sca8 = __src8;
448 compat_symbol (libc, __old_strcpy_small, __strcpy_small, GLIBC_2_1_1);
450 # if _STRING_INLINE_unaligned
452 __old_stpcpy_small (char *__dest,
453 __uint16_t __src0_2, __uint16_t __src4_2,
454 __uint32_t __src0_4, __uint32_t __src4_4,
459 unsigned short int __usi;
462 } *__u = (void *) __dest;
463 switch ((unsigned int) __srclen)
469 __u->__usi = __src0_2;
470 __u = __extension__ ((void *) __u + 1);
473 __u->__usi = __src0_2;
474 __u = __extension__ ((void *) __u + 2);
478 __u->__ui = __src0_4;
479 __u = __extension__ ((void *) __u + 3);
482 __u->__ui = __src0_4;
483 __u = __extension__ ((void *) __u + 4);
487 __u->__ui = __src0_4;
488 __u = __extension__ ((void *) __u + 4);
489 __u->__usi = __src4_2;
490 __u = __extension__ ((void *) __u + 1);
493 __u->__ui = __src0_4;
494 __u = __extension__ ((void *) __u + 4);
495 __u->__usi = __src4_2;
496 __u = __extension__ ((void *) __u + 2);
500 __u->__ui = __src0_4;
501 __u = __extension__ ((void *) __u + 4);
502 __u->__ui = __src4_4;
503 __u = __extension__ ((void *) __u + 3);
512 __old_stpcpy_small (char *__dest,
513 __STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
514 __STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
515 __STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
516 __STRING2_COPY_ARR8 __src8, size_t __srclen)
520 __STRING2_COPY_ARR2 __sca2;
521 __STRING2_COPY_ARR3 __sca3;
522 __STRING2_COPY_ARR4 __sca4;
523 __STRING2_COPY_ARR5 __sca5;
524 __STRING2_COPY_ARR6 __sca6;
525 __STRING2_COPY_ARR7 __sca7;
526 __STRING2_COPY_ARR8 __sca8;
527 } *__u = (void *) __dest;
528 switch ((unsigned int) __srclen)
534 __extension__ __u->__sca2 = __src2;
537 __extension__ __u->__sca3 = __src3;
540 __extension__ __u->__sca4 = __src4;
543 __extension__ __u->__sca5 = __src5;
546 __extension__ __u->__sca6 = __src6;
549 __extension__ __u->__sca7 = __src7;
552 __extension__ __u->__sca8 = __src8;
555 return __dest + __srclen - 1;
558 compat_symbol (libc, __old_stpcpy_small, __stpcpy_small, GLIBC_2_1_1);