diff options
Diffstat (limited to 'command.h')
| -rw-r--r-- | command.h | 11 |
1 files changed, 8 insertions, 3 deletions
@@ -95,14 +95,18 @@ typedef struct word_list { /* */ /* **************************************************************** */ -/* What a redirection descriptor looks like. If FLAGS is IS_DESCRIPTOR, - then we use REDIRECTEE.DEST, else we use the file specified. */ +/* What a redirection descriptor looks like. If the redirection instruction + is ri_duplicating_input or ri_duplicating_output, use DEST, otherwise + use the file in FILENAME. Out-of-range descriptors are identified by a + negative DEST. */ typedef union { - long dest; /* Place to redirect REDIRECTOR to, or ... */ + int dest; /* Place to redirect REDIRECTOR to, or ... */ WORD_DESC *filename; /* filename to redirect to. */ } REDIRECTEE; +/* Structure describing a redirection. If REDIRECTOR is negative, the parser + (or translator in redir.c) encountered an out-of-range file descriptor. */ typedef struct redirect { struct redirect *next; /* Next element, or NULL. */ int redirector; /* Descriptor to be redirected. */ @@ -131,6 +135,7 @@ typedef struct element { #define CMD_TIME_POSIX 0x100 /* time -p; use POSIX.2 time output spec. */ #define CMD_AMPERSAND 0x200 /* command & */ #define CMD_STDIN_REDIR 0x400 /* async command needs implicit </dev/null */ +#define CMD_COMMAND_BUILTIN 0x0800 /* command executed by `command' builtin */ /* What a command looks like. */ typedef struct command { |