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7bebe9579e
The && and || operators should be left-associative, since that is how
they are treated in most other languages (including C and Unix
shell). For example, in the command:
dhcp net0 && goto dhcp_ok || echo No DHCP on net0
if the "dhcp net0" fails then the "echo" should be executed.
After an "exit" or a successful "goto", further commands on the same
line should never be executed. For example:
goto somewhere && echo This should never be printed
exit 0 && echo This should never be printed
exit 1 && echo This should never be printed
An "exit" should cause the current shell or script to terminate and
return the specified exit status to its caller. For example:
chain test.ipxe && echo Success || echo Failure
[in test.ipxe]
#!ipxe
exit 0
should echo "Success".
Signed-off-by: Michael Brown <mcb30@ipxe.org>
27 lines
524 B
C
27 lines
524 B
C
#ifndef _IPXE_COMMAND_H
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#define _IPXE_COMMAND_H
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <ipxe/tables.h>
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/** A command-line command */
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struct command {
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/** Name of the command */
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const char *name;
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/**
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* Function implementing the command
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*
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* @v argc Argument count
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* @v argv Argument list
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* @ret rc Return status code
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*/
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int ( * exec ) ( int argc, char **argv );
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};
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#define COMMANDS __table ( struct command, "commands" )
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#define __command __table_entry ( COMMANDS, 01 )
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#endif /* _IPXE_COMMAND_H */
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