75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/* $Id$
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*****************************************************************************
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*
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* File: extcmd.h
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*
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* Author: Damien Stuart (dstuart@dstuart.org)
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*
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* Purpose: Header file for extcmd.c.
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*
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* Copyright (C) 2010 Damien Stuart (dstuart@dstuart.org)
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*
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* License (GNU Public License):
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*
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*****************************************************************************
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*/
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#ifndef EXTCMD_H
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#define EXTCMD_H
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#define IO_READ_BUF_LEN 256
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#define EXTCMD_DEF_TIMEOUT 15
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/* The various return status states in which an external command result
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* may end up in.
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*/
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enum {
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EXTCMD_SETUID_ERROR = -4,
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EXTCMD_SELECT_ERROR = -3,
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EXTCMD_PIPE_ERROR = -2,
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EXTCMD_FORK_ERROR = -1,
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EXTCMD_SUCCESS_ALL_OUTPUT = 0x00,
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EXTCMD_SUCCESS_PARTIAL_STDOUT = 0x01,
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EXTCMD_SUCCESS_PARTIAL_STDERR = 0x02,
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EXTCMD_STDOUT_READ_ERROR = 0x04,
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EXTCMD_STDERR_READ_ERROR = 0x08,
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EXTCMD_EXECUTION_ERROR = 0x10,
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EXTCMD_EXECUTION_TIMEOUT = 0x20
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};
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/* Some convenience macros for testing the extcmd return status.
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*/
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#define EXTCMD_IS_SUCCESS(x) (x == EXTCMD_SUCCESS_ALL_OUTPUT)
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#define EXTCMD_IS_SUCCESS_PARTIAL_STDOUT(x) (x && EXTCMD_SUCCESS_PARTIAL_STDOUT)
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#define EXTCMD_IS_SUCCESS_PARTIAL_STDERR(x) (x && EXTCMD_SUCCESS_PARTIAL_STDERR)
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#define EXTCMD_IS_SUCCESS_PARTIAL_OUTPUT(x) \
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((x && EXTCMD_SUCCESS_PARTIAL_STDOUT) \
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|| x && EXTCMD_SUCCESS_PARTIAL_STDERR)
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#define EXTCMD_STDOUT_READ_ERROR(x) (x && EXTCMD_STDOUT_READ_ERROR)
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#define EXTCMD_STDERR_READ_ERROR(x) (x && EXTCMD_STDERR_READ_ERROR)
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#define EXTCMD_READ_ERROR(x) \
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((x && EXTCMD_STDOUT_READ_ERROR) \
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|| x && EXTCMD_STDERR_READ_ERROR)
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#define EXTCMD_EXECUTION_ERROR(x) (x && EXTCMD_EXECUTION_ERROR)
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#define EXTCMD_NOERROR(x,y) ((y == 0) \
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&& (EXTCMD_IS_SUCCESS(x) || EXTCMD_IS_SUCCESS_PARTIAL_OUTPUT(x))
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/* Function prototypes
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*/
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int run_extcmd(char *cmd, char *so_buf, size_t so_buf_sz, int timeout);
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int run_extcmd_as(uid_t uid, char *cmd, char *so_buf, size_t so_buf_sz, int timeout);
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#endif /* EXTCMD_H */
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/***EOF***/
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