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2017-05-12env: avoid possible NULL pointer accessxypron.glpk@gmx.de
env_attr_lookup call env_attr_walk with callback = regex_callback. In env_attr_walk attributes = strchr(entry_cpy, ENV_ATTR_SEP) will return NULL if ENV_ATTR_SEP is not found. In the aftermath regex_callback may call strlen(attributes) with a NULL value which will lead to a failure. The problem was indicated by scan-clam. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2017-05-12env: correct sign for error codexypron.glpk@gmx.de
Error codes should be negative. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2015-05-21env: Add regex support to env_attrsJoe Hershberger
Allow the features that use env_attrs to specify regexs for the name Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-05-21env: Allow env_attr_walk to pass a priv * to callbackJoe Hershberger
In some cases it can be helpful to have context in the callback about the calling situation. This is needed for following patches. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-05-21env: Simplify the reverse_strstr() interfaceJoe Hershberger
The logic to find the whole matching name was split needlessly between the reverse_strstr function and its caller. Fully contain it to make the interface for calling it more consistent. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2015-05-21env: Fix return values in env_attr_lookup()Joe Hershberger
This function returned numbers for error codes. Change them to error codes. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2012-12-13tools/env: Add environment variable flags supportJoe Hershberger
Currently just validates variable types as decimal, hexidecimal, boolean, ip address, and mac address. Call env_acl_validate_setenv_params() from setenv() in fw_env.c. If the entry is not found in the env .flags, then look in the static one. This allows the env to override the static definitions, but prevents the need to have every definition in the environment distracting you. Need to build in _ctype for isdigit for Linux. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2012-12-13env: Add support for callbacks to environment varsJoe Hershberger
Add support for per-variable callbacks to the "hashtable" functions. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> !!!fix comment in callback