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Move simple interpreter 'perform' into interp.c and call it

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interp_builtin_cmd().
This commit is contained in:
Warner Losh 2018-02-07 23:27:38 +00:00
parent 44eebfff73
commit 3a4a3639d2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=329000
3 changed files with 36 additions and 34 deletions
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2
stand/common/bootstrap.h
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@ -47,6 +47,8 @@ extern char command_errbuf[COMMAND_ERRBUFSZ];
/* interp.c */
void interact(void);
void interp_emit_prompt(void);
int interp_builtin_cmd(int argc, char *argv[]);
/* Called by interp.c for interp_*.c embedded interpreters */
int interp_include(const char *filename); /* Execute commands from filename */
void interp_init(void); /* Initialize interpreater */

32
stand/common/interp.c
View File

@ -139,3 +139,35 @@ interp_emit_prompt(void)
putchar(' ');
free(pr);
}
/*
* Perform a builtin command
*/
int
interp_builtin_cmd(int argc, char *argv[])
{
int result;
struct bootblk_command **cmdp;
bootblk_cmd_t *cmd;
if (argc < 1)
return(CMD_OK);
/* set return defaults; a successful command will override these */
command_errmsg = command_errbuf;
strcpy(command_errbuf, "no error message");
cmd = NULL;
result = CMD_ERROR;
/* search the command set for the command */
SET_FOREACH(cmdp, Xcommand_set) {
if (((*cmdp)->c_name != NULL) && !strcmp(argv[0], (*cmdp)->c_name))
cmd = (*cmdp)->c_fn;
}
if (cmd != NULL) {
result = (cmd)(argc, argv);
} else {
command_errmsg = "unknown command";
}
return(result);
}

36
stand/common/interp_simple.c
View File

@ -35,38 +35,6 @@ __FBSDID("$FreeBSD$");
#include <string.h>
#include "bootstrap.h"
/*
* Perform the command
*/
static int
perform(int argc, char *argv[])
{
int result;
struct bootblk_command **cmdp;
bootblk_cmd_t *cmd;
if (argc < 1)
return(CMD_OK);
/* set return defaults; a successful command will override these */
command_errmsg = command_errbuf;
strcpy(command_errbuf, "no error message");
cmd = NULL;
result = CMD_ERROR;
/* search the command set for the command */
SET_FOREACH(cmdp, Xcommand_set) {
if (((*cmdp)->c_name != NULL) && !strcmp(argv[0], (*cmdp)->c_name))
cmd = (*cmdp)->c_fn;
}
if (cmd != NULL) {
result = (cmd)(argc, argv);
} else {
command_errmsg = "unknown command";
}
return(result);
}
void
interp_init(void)
{
@ -86,7 +54,7 @@ interp_run(const char *input)
return CMD_ERROR;
}
if (perform(argc, argv)) {
if (interp_builtin_cmd(argc, argv)) {
printf("%s: %s\n", argv[0], command_errmsg);
free(argv);
return CMD_ERROR;
@ -195,7 +163,7 @@ interp_include(const char *filename)
/* Parse the command */
if (!parse(&argc, &argv, sp->text)) {
if ((argc > 0) && (perform(argc, argv) != 0)) {
if ((argc > 0) && (interp_builtin_cmd(argc, argv) != 0)) {
/* normal command */
printf("%s: %s\n", argv[0], command_errmsg);
if (!(sp->flags & SL_IGNOREERR)) {