projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 2b778ceb | 1 | /* Copyright (C) 1994-2021 Free Software Foundation, Inc. |
| ebbad4cc | 2 | This file is part of the GNU C Library. |
| 28f540f4 | 3 | |
| ebbad4cc | 4 | The GNU C Library is free software; you can redistribute it and/or |
| 41bdb6e2 AJ |
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. | |
| 28f540f4 | 8 | |
| ebbad4cc UD |
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 | |
| 41bdb6e2 | 12 | Lesser General Public License for more details. |
| 28f540f4 | 13 | |
| 41bdb6e2 | 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/>. */ |
| 28f540f4 | 17 | |
| 28f540f4 RM |
18 | #include <errno.h> |
| 19 | #include <sys/socket.h> | |
| 20 | #include <hurd.h> | |
| 21 | #include <hurd/fd.h> | |
| 22 | #include <hurd/socket.h> | |
| 23 | #include <string.h> | |
| 89edef7b | 24 | #include <sysdep-cancel.h> |
| 28f540f4 RM |
25 | |
| 26 | /* Read N bytes into BUF from socket FD. | |
| 27 | Returns the number read or -1 for errors. */ | |
| ebbad4cc | 28 | |
| c2063191 | 29 | ssize_t |
| bd2260a2 | 30 | __recv (int fd, void *buf, size_t n, int flags) |
| 28f540f4 RM |
31 | { |
| 32 | error_t err; | |
| 33 | mach_port_t addrport; | |
| 34 | char *bufp = buf; | |
| 35 | mach_msg_type_number_t nread = n; | |
| 36 | mach_port_t *ports; | |
| d5a0160b | 37 | mach_msg_type_number_t nports = 0; |
| 28f540f4 RM |
38 | char *cdata = NULL; |
| 39 | mach_msg_type_number_t clen = 0; | |
| 89edef7b | 40 | int cancel_oldtype; |
| 28f540f4 | 41 | |
| 89edef7b | 42 | cancel_oldtype = LIBC_CANCEL_ASYNC(); |
| 67a78072 ST |
43 | err = HURD_DPORT_USE_CANCEL (fd, __socket_recv (port, &addrport, |
| 44 | flags, &bufp, &nread, | |
| 45 | &ports, &nports, | |
| 46 | &cdata, &clen, | |
| 47 | &flags, | |
| 48 | n)); | |
| 89edef7b ST |
49 | LIBC_CANCEL_RESET (cancel_oldtype); |
| 50 | ||
| 9d067269 ST |
51 | if (err == MIG_BAD_ID || err == EOPNOTSUPP) |
| 52 | /* The file did not grok the socket protocol. */ | |
| 53 | err = ENOTSOCK; | |
| 54 | if (err) | |
| e66ecb22 | 55 | return __hurd_sockfail (fd, flags, err); |
| 28f540f4 RM |
56 | |
| 57 | __mach_port_deallocate (__mach_task_self (), addrport); | |
| 58 | __vm_deallocate (__mach_task_self (), (vm_address_t) cdata, clen); | |
| 59 | ||
| 60 | if (bufp != buf) | |
| 61 | { | |
| 62 | memcpy (buf, bufp, nread); | |
| 63 | __vm_deallocate (__mach_task_self (), (vm_address_t) bufp, nread); | |
| 64 | } | |
| 65 | ||
| 66 | return nread; | |
| 67 | } | |
| 0595c984 | 68 | libc_hidden_def (__recv) |
| a2274a08 | 69 | weak_alias (__recv, recv) |