]>
Commit | Line | Data |
---|---|---|
6d7e8eda | 1 | /* Copyright (C) 1991-2023 Free Software Foundation, Inc. |
dff37515 UD |
2 | This file is part of the GNU C Library. |
3 | ||
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. | |
8 | ||
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. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
dff37515 | 17 | |
dff37515 | 18 | #include <stdarg.h> |
4e2f43f8 | 19 | #include <libio/libioP.h> |
dff37515 UD |
20 | |
21 | ||
22 | /* Write formatted output from FORMAT to a string which is | |
23 | allocated with malloc and stored in *STRING_PTR. */ | |
24 | int | |
505c884a | 25 | ___asprintf_chk (char **result_ptr, int flag, const char *format, ...) |
dff37515 | 26 | { |
4e2f43f8 ZW |
27 | /* For flag > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n |
28 | can only come from read-only format strings. */ | |
29 | unsigned int mode = (flag > 0) ? PRINTF_FORTIFY : 0; | |
30 | va_list ap; | |
31 | int ret; | |
dff37515 | 32 | |
4e2f43f8 ZW |
33 | va_start (ap, format); |
34 | ret = __vasprintf_internal (result_ptr, format, ap, mode); | |
35 | va_end (ap); | |
dff37515 | 36 | |
4e2f43f8 | 37 | return ret; |
dff37515 | 38 | } |
505c884a FB |
39 | #if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1 |
40 | /* This is needed since <bits/stdio-lbdl.h> is included in this case, leading to | |
41 | * multiple asm redirection of the same symbol | |
42 | */ | |
43 | ldbl_hidden_def (___asprintf_chk, __asprintf_chk) | |
44 | ldbl_strong_alias (___asprintf_chk, __asprintf_chk) | |
45 | #else | |
46 | /* On some systems introduction of ldbl_* macros lead to ABI breakage due to the | |
47 | * long_double_symbol aliasing, e.g. on s390x: | |
48 | * /usr/bin/ld: glibc/iconv/../libio/bits/stdio2.h:137: undefined reference to | |
49 | * `__asprintf_chk' | |
50 | * Due to __asprintf_chk@@GLIBC_2.4 alias replacing __asprintf_chk. | |
51 | */ | |
52 | strong_alias (___asprintf_chk, __asprintf_chk) | |
53 | libc_hidden_def (__asprintf_chk) | |
54 | #endif |