Mercurial > gnulib
annotate lib/grantpt.c @ 40169:ecb43221748b
strtod, strtold: Work around HP-UX 11.31/ia64 bug.
* lib/strtod.c (STRTOD): When there is an extra character after the
exponent marker 'p', reparse the number.
* doc/posix-functions/strtod.texi: Document the HP-UX 11.31 bug.
* doc/posix-functions/strtold.texi: Likewise.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Fri, 01 Feb 2019 00:18:57 +0100 |
| parents | b06060465f09 |
| children |
| rev | line source |
|---|---|
| 13028 | 1 /* Acquire ownership of the slave side of a pseudo-terminal. |
|
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b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
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diff
changeset
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2 Copyright (C) 1998-2002, 2009-2019 Free Software Foundation, Inc. |
| 13028 | 3 Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998. |
| 4 | |
| 5 This program is free software: you can redistribute it and/or modify | |
| 6 it under the terms of the GNU General Public License as published by | |
| 7 the Free Software Foundation; either version 3 of the License, or | |
| 8 (at your option) any later version. | |
| 9 | |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 19190 | 16 along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| 13028 | 17 |
| 18 #include <config.h> | |
| 19 | |
| 20 #include <stdlib.h> | |
| 21 | |
| 22 #include <assert.h> | |
| 23 #include <errno.h> | |
| 24 #include <string.h> | |
| 25 #include <sys/wait.h> | |
| 26 #include <unistd.h> | |
| 27 | |
| 28 #if HAVE_SETRLIMIT | |
| 29 # include <sys/types.h> | |
| 30 # include <sys/time.h> | |
| 31 # include <sys/resource.h> | |
| 32 #endif | |
| 33 | |
| 34 #include "configmake.h" | |
| 35 #include "pty-private.h" | |
| 36 | |
| 37 #ifndef _LIBC | |
| 38 # define __set_errno(e) errno = (e) | |
| 39 # define __dup2 dup2 | |
| 40 # define __fork fork | |
| 41 # define __setrlimit setrlimit | |
| 42 # define __waitpid waitpid | |
| 43 #endif | |
| 44 | |
| 45 int | |
| 46 grantpt (int fd) | |
| 47 { | |
|
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fix pty related tests issues on Windows
Pavel Fedin <p.fedin@samsung.com>
parents:
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changeset
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48 #if defined __OpenBSD__ || defined _WIN32 |
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posix_openpt: Support for OpenBSD.
Bruno Haible <bruno@clisp.org>
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49 /* On OpenBSD, master and slave of a pseudo-terminal are allocated together, |
|
18035
674bd7704497
fix pty related tests issues on Windows
Pavel Fedin <p.fedin@samsung.com>
parents:
17848
diff
changeset
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50 through an ioctl on /dev/ptm. On Windows there are no ptys. |
|
674bd7704497
fix pty related tests issues on Windows
Pavel Fedin <p.fedin@samsung.com>
parents:
17848
diff
changeset
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51 Therefore in either case there is no need for grantpt(). */ |
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posix_openpt: Support for OpenBSD.
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52 return 0; |
|
e4144dcb6f45
posix_openpt: Support for OpenBSD.
Bruno Haible <bruno@clisp.org>
parents:
14079
diff
changeset
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53 #else |
| 13028 | 54 /* This function is most often called from a process without 'root' |
| 55 credentials. Use the helper program. */ | |
| 56 int retval = -1; | |
| 57 pid_t pid = __fork (); | |
| 58 if (pid == -1) | |
| 59 goto cleanup; | |
| 60 else if (pid == 0) | |
| 61 { | |
| 62 /* This is executed in the child process. */ | |
| 63 | |
|
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Bruno Haible <bruno@clisp.org>
parents:
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diff
changeset
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64 # if HAVE_SETRLIMIT && defined RLIMIT_CORE |
| 13028 | 65 /* Disable core dumps. */ |
| 66 struct rlimit rl = { 0, 0 }; | |
| 67 __setrlimit (RLIMIT_CORE, &rl); | |
|
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posix_openpt: Support for OpenBSD.
Bruno Haible <bruno@clisp.org>
parents:
14079
diff
changeset
|
68 # endif |
| 13028 | 69 |
| 70 /* We pass the master pseudo terminal as file descriptor PTY_FILENO. */ | |
| 71 if (fd != PTY_FILENO) | |
| 72 if (__dup2 (fd, PTY_FILENO) < 0) | |
| 73 _exit (FAIL_EBADF); | |
| 74 | |
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posix_openpt: Support for OpenBSD.
Bruno Haible <bruno@clisp.org>
parents:
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diff
changeset
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75 # ifdef CLOSE_ALL_FDS |
| 13028 | 76 CLOSE_ALL_FDS (); |
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parents:
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diff
changeset
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77 # endif |
| 13028 | 78 |
| 79 execle (_PATH_PT_CHOWN, strrchr (_PATH_PT_CHOWN, '/') + 1, NULL, NULL); | |
| 80 _exit (FAIL_EXEC); | |
| 81 } | |
| 82 else | |
| 83 { | |
| 84 int w; | |
| 85 | |
| 86 if (__waitpid (pid, &w, 0) == -1) | |
| 87 goto cleanup; | |
| 88 if (!WIFEXITED (w)) | |
| 89 __set_errno (ENOEXEC); | |
| 90 else | |
| 91 switch (WEXITSTATUS (w)) | |
| 92 { | |
| 93 case 0: | |
| 94 retval = 0; | |
| 95 break; | |
| 96 case FAIL_EBADF: | |
| 97 __set_errno (EBADF); | |
| 98 break; | |
| 99 case FAIL_EINVAL: | |
| 100 __set_errno (EINVAL); | |
| 101 break; | |
| 102 case FAIL_EACCES: | |
| 103 __set_errno (EACCES); | |
| 104 break; | |
| 105 case FAIL_EXEC: | |
| 106 __set_errno (ENOEXEC); | |
| 107 break; | |
| 108 case FAIL_ENOMEM: | |
| 109 __set_errno (ENOMEM); | |
| 110 break; | |
| 111 | |
| 112 default: | |
| 113 assert(! "getpt: internal error: invalid exit code from pt_chown"); | |
| 114 } | |
| 115 } | |
| 116 | |
| 117 cleanup: | |
| 118 return retval; | |
|
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Bruno Haible <bruno@clisp.org>
parents:
14079
diff
changeset
|
119 #endif |
| 13028 | 120 } |