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include/env_attr.h
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/* SPDX-License-Identifier: GPL-2.0+ */ |
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/* * (C) Copyright 2012 * Joe Hershberger, National Instruments, joe.hershberger@ni.com |
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*/ #ifndef __ENV_ATTR_H__ #define __ENV_ATTR_H__ #define ENV_ATTR_LIST_DELIM ',' #define ENV_ATTR_SEP ':' /* * env_attr_walk takes as input an "attr_list" that takes the form: * attributes = [^,:\s]* * entry = name[:attributes] * list = entry[,list] |
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* It will call the "callback" function with the "name" and "attributes" |
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* The callback may return a non-0 to abort the list walk. * This return value will be passed through to the caller. * 0 is returned on success. */ |
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int env_attr_walk(const char *attr_list, int (*callback)(const char *name, const char *attributes, void *priv), void *priv); |
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/* * env_attr_lookup takes as input an "attr_list" with the same form as above. * It also takes as input a "name" to look for. * If the name is found in the list, it's value is copied into "attributes". * There is no protection on attributes being too small for the value. * It returns -1 if attributes is NULL, 1 if "name" is not found, 2 if * "attr_list" is NULL. * Returns 0 on success. */ |
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int env_attr_lookup(const char *attr_list, const char *name, char *attributes); |
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#endif /* __ENV_ATTR_H__ */ |