| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | Samba utility functions
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| 4 | Copyright (C) Andrew Tridgell 1992-1998
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| 5 | Copyright (C) Jeremy Allison 2001-2002
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| 6 | Copyright (C) Simo Sorce 2001
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| 7 | Copyright (C) Jim McDonough (jmcd@us.ibm.com) 2003.
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| 8 | Copyright (C) James J Myers 2003
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| 9 |
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| 10 | This program is free software; you can redistribute it and/or modify
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| 11 | it under the terms of the GNU General Public License as published by
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| 12 | the Free Software Foundation; either version 3 of the License, or
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| 13 | (at your option) any later version.
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| 14 |
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| 15 | This program is distributed in the hope that it will be useful,
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| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | GNU General Public License for more details.
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| 19 |
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| 20 | You should have received a copy of the GNU General Public License
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| 21 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 22 | */
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| 23 |
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| 24 | #include "includes.h"
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| 25 | #include "system/network.h"
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| 26 | #include "system/filesys.h"
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| 27 | #include "system/locale.h"
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| 28 | #undef malloc
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| 29 | #undef strcasecmp
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| 30 | #undef strncasecmp
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| 31 | #undef strdup
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| 32 | #undef realloc
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| 33 |
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| 34 | /**
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| 35 | Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
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| 36 | else
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| 37 | if SYSV use O_NDELAY
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| 38 | if BSD use FNDELAY
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| 39 | **/
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| 40 |
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| 41 | _PUBLIC_ int set_blocking(int fd, bool set)
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| 42 | {
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| 43 | int val;
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| 44 | #ifdef O_NONBLOCK
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| 45 | #define FLAG_TO_SET O_NONBLOCK
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| 46 | #else
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| 47 | #ifdef SYSV
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| 48 | #define FLAG_TO_SET O_NDELAY
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| 49 | #else /* BSD */
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| 50 | #define FLAG_TO_SET FNDELAY
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| 51 | #endif
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| 52 | #endif
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| 53 |
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| 54 | if((val = fcntl(fd, F_GETFL, 0)) == -1)
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| 55 | return -1;
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| 56 | #ifndef __OS2__
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| 57 | if(set) /* Turn blocking on - ie. clear nonblock flag */
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| 58 | val &= ~FLAG_TO_SET;
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| 59 | else
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| 60 | val |= FLAG_TO_SET;
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| 61 | return fcntl( fd, F_SETFL, val);
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| 62 | #else
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| 63 | if(set) /* turn blocking on - ie. clear nonblock flag */
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| 64 | val = 0;
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| 65 | else
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| 66 | val = 1;
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| 67 | return os2_ioctl(fd, FIONBIO, (char *) &val, sizeof(val));
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| 68 | #endif
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| 69 |
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| 70 | #undef FLAG_TO_SET
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| 71 | }
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