7600168453
Add the ability to to parse sysfs paths to sysctl nodes by replacing '/' with '.' Submitted by: slavash@ MFC after: 1 week Sponsored by: Mellanox Technologies
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/*
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* Copyright (c) 2008 Voltaire Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifndef _UMAD_SYSFS_H
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#define _UMAD_SYSFS_H
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#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include <infiniband/types.h>
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#include <infiniband/umad.h>
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struct dirent;
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extern int sys_read_string(const char *dir_name, const char *file_name, char *str, int len);
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extern int sys_read_guid(const char *dir_name, const char *file_name, __be64 * net_guid);
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extern int sys_read_gid(const char *dir_name, const char *file_name,
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union umad_gid *gid);
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extern int sys_read_uint64(const char *dir_name, const char *file_name, uint64_t * u);
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extern int sys_read_uint(const char *dir_name, const char *file_name, unsigned *u);
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extern int sys_scandir(const char *dirname, struct dirent ***namelist,
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int (*select)(const struct dirent *),
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int (*compar)(const struct dirent **, const struct dirent **));
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#ifdef __FreeBSD__
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static inline const char *
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path_to_sysctl(const char *path, int out_len, char *out)
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{
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const char *retval = out;
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/* Validate that out is at least as long as the original path */
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if (out_len < (strlen(path) + 1))
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return NULL;
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while (*path == '/')
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path++;
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while (*path) {
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if (*path == '/') {
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if (*(path + 1) == '/')
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*out = '.';
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else
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*out++ = '.';
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} else
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*out++ = *path;
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path++;
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}
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*out = 0;
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return (retval);
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}
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#define PATH_TO_SYS(str) \
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path_to_sysctl(str, strlen(str) + 1, alloca(strlen(str) + 1))
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#else
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#define PATH_TO_SYS(str) str
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#endif
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#endif /* _UMAD_SYSFS_H */
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