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https://github.com/brain-hackers/u-boot-brain
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87b6398b46
The run command treats each argument an an environment variable. It gets the value of each variable and executes it as a command. If an environment variable contains a newline and the hush cli is used, it is supposed to execute each line one after the other. Normally a newline signals to hush to exit - this is used in normal command line entry - after a command is entered we want to return to allow the user to enter the next one. But environment variables obviously need to execute to completion. Add a special case for the execution of environment variables which continues when a newline is seen, and add a few tests to check this behaviour. Note: it's not impossible that this may cause regressions in other areas. I can't think of a case but with any change of behaviour with limited test coverage there is always a risk. From what I can tell this behaviour has been around since at least U-Boot 2011.03, although this pre-dates sandbox and I have not tested it on real hardware. Reported-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
28 lines
737 B
C
28 lines
737 B
C
/*
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* (C) Copyright 2001
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _CLI_HUSH_H_
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#define _CLI_HUSH_H_
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#define FLAG_EXIT_FROM_LOOP 1
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#define FLAG_PARSE_SEMICOLON (1 << 1) /* symbol ';' is special for parser */
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#define FLAG_REPARSING (1 << 2) /* >=2nd pass */
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#define FLAG_CONT_ON_NEWLINE (1 << 3) /* continue when we see \n */
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extern int u_boot_hush_start(void);
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extern int parse_string_outer(const char *, int);
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extern int parse_file_outer(void);
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int set_local_var(const char *s, int flg_export);
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void unset_local_var(const char *name);
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char *get_local_var(const char *s);
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#if defined(CONFIG_HUSH_INIT_VAR)
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extern int hush_init_var (void);
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#endif
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#endif
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