Add in exec support (patch from Torbj?rn Axelsson <torax@cendio.se>)
and disable backticks (since they are still wierdly broken in some
cases.
diff --git a/shell/lash.c b/shell/lash.c
index 60c51f6..b8f4072 100644
--- a/shell/lash.c
+++ b/shell/lash.c
@@ -26,7 +26,7 @@
*/
-#define BB_FEATURE_SH_BACKTICKS
+//#define BB_FEATURE_SH_BACKTICKS
//#define BB_FEATURE_SH_IF_EXPRESSIONS
#define BB_FEATURE_SH_ENVIRONMENT
//#define DEBUG_SHELL
@@ -108,6 +108,7 @@
/* function prototypes for builtins */
static int builtin_cd(struct job *cmd, struct jobSet *junk);
static int builtin_env(struct job *dummy, struct jobSet *junk);
+static int builtin_exec(struct job *cmd, struct jobSet *junk);
static int builtin_exit(struct job *cmd, struct jobSet *junk);
static int builtin_fg_bg(struct job *cmd, struct jobSet *jobList);
static int builtin_help(struct job *cmd, struct jobSet *junk);
@@ -139,6 +140,7 @@
static struct builtInCommand bltins[] = {
{"bg", "Resume a job in the background", builtin_fg_bg},
{"cd", "Change working directory", builtin_cd},
+ {"exec", "Exec command, replacing this shell with the exec'd process", builtin_exec},
{"exit", "Exit from shell()", builtin_exit},
{"fg", "Bring job into the foreground", builtin_fg_bg},
{"jobs", "Lists the active jobs", builtin_jobs},
@@ -219,6 +221,19 @@
return (0);
}
+/* built-in 'exec' handler */
+static int builtin_exec(struct job *cmd, struct jobSet *junk)
+{
+ if (cmd->progs[0].argv[1])
+ {
+ cmd->progs[0].argv++;
+ execvp(cmd->progs[0].argv[0], cmd->progs[0].argv);
+ fatalError("Exec to %s failed: %s\n", cmd->progs[0].argv[0],
+ strerror(errno));
+ }
+ return TRUE;
+}
+
/* built-in 'exit' handler */
static int builtin_exit(struct job *cmd, struct jobSet *junk)
{