//config: you to run the specified command or builtin,
//config: even when there is a function with the same name.
//config:
+//config:config ASH_EMBEDDED_SCRIPTS
+//config: bool "Embed scripts in the binary"
+//config: default y
+//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH
+//config: help
+//config: Allow scripts to be compressed and embedded in the busybox
+//config: binary. The scripts should be placed in the 'embed' directory
+//config: at build time. Like applets, scripts can be run as
+//config: 'busybox SCRIPT ...' or by linking their name to the binary.
+//config:
+//config: This also allows applets to be implemented as scripts: place
+//config: the script in 'applets_sh' and a stub C file containing
+//config: configuration in the appropriate subsystem directory.
+//config:
//config:endif # ash options
//applet:IF_ASH(APPLET(ash, BB_DIR_BIN, BB_SUID_DROP))
#include <sys/times.h>
#include <sys/utsname.h> /* for setting $HOSTNAME */
#include "busybox.h" /* for applet_names */
+#if ENABLE_ASH_EMBEDDED_SCRIPTS
+# include "embedded_scripts.h"
+#else
+# define NUM_SCRIPTS 0
+#endif
/* So far, all bash compat is controlled by one config option */
/* Separate defines document which part of code implements what */
}
INT_OFF;
- nameeq = ckmalloc(namelen + vallen + 2);
+ nameeq = ckzalloc(namelen + vallen + 2);
p = mempcpy(nameeq, name, namelen);
if (val) {
*p++ = '=';
- p = mempcpy(p, val, vallen);
+ memcpy(p, val, vallen);
}
- *p = '\0';
vp = setvareq(nameeq, flags | VNOSAVE);
INT_ON;
#else
execve(cmd, argv, envp);
#endif
+
if (cmd != bb_busybox_exec_path && errno == ENOEXEC) {
/* Run "cmd" as a shell script:
* http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html
heredoclist = NULL;
while (here) {
+ tokpushback = 0;
setprompt_if(needprompt, 2);
readtoken1(pgetc(), here->here->type == NHERE ? SQSYNTAX : DQSYNTAX,
here->eofmark, here->striptabs);
xargv = argv;
login_sh = xargv[0] && xargv[0][0] == '-';
+#if NUM_SCRIPTS > 0
+ if (minusc)
+ goto setarg0;
+#endif
arg0 = xargv[0];
/* if (xargv[0]) - mmm, this is always true! */
xargv++;
+ argptr = xargv;
for (i = 0; i < NOPTS; i++)
optlist[i] = 2;
- argptr = xargv;
if (options(/*cmdline:*/ 1, &login_sh)) {
/* it already printed err message */
raise_exception(EXERROR);
* is used to figure out how far we had gotten.
*/
int ash_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+#if NUM_SCRIPTS > 0
+int ash_main(int argc, char **argv)
+#else
int ash_main(int argc UNUSED_PARAM, char **argv)
+#endif
+/* note: 'argc' is used only if embedded scripts are enabled */
{
volatile smallint state;
struct jmploc jmploc;
init();
setstackmark(&smark);
+
+#if NUM_SCRIPTS > 0
+ if (argc < 0)
+ /* Non-NULL minusc tells procargs that an embedded script is being run */
+ minusc = get_script_content(-argc - 1);
+#endif
login_sh = procargs(argv);
#if DEBUG
TRACE(("Shell args: "));