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-rw-r--r--shell/hush.c59
1 files changed, 31 insertions, 28 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 119518bd1..3cf651b33 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -5442,8 +5442,8 @@ static int builtin_eval(char **argv)
{
int rcode = EXIT_SUCCESS;
- if (argv[1]) {
- char *str = expand_strvec_to_string(argv + 1);
+ if (*++argv) {
+ char *str = expand_strvec_to_string(argv);
/* bash:
* eval "echo Hi; done" ("done" is syntax error):
* "echo Hi" will not execute too.
@@ -5458,13 +5458,14 @@ static int builtin_eval(char **argv)
static int builtin_cd(char **argv)
{
const char *newdir;
- if (argv[1] == NULL) {
+ if (*++argv == NULL) {
/* bash does nothing (exitcode 0) if HOME is ""; if it's unset,
* bash says "bash: cd: HOME not set" and does nothing (exitcode 1)
*/
newdir = getenv("HOME") ? : "/";
- } else
- newdir = argv[1];
+ } else {
+ newdir = *argv;
+ }
if (chdir(newdir)) {
printf("cd: %s: %s\n", newdir, strerror(errno));
return EXIT_FAILURE;
@@ -5475,14 +5476,14 @@ static int builtin_cd(char **argv)
static int builtin_exec(char **argv)
{
- if (argv[1] == NULL)
+ if (*++argv == NULL)
return EXIT_SUCCESS; /* bash does this */
{
#if !BB_MMU
nommu_save_t dummy;
#endif
// FIXME: if exec fails, bash does NOT exit! We do...
- pseudo_exec_argv(&dummy, argv + 1, 0, NULL);
+ pseudo_exec_argv(&dummy, argv, 0, NULL);
/* never returns */
}
}
@@ -5493,20 +5494,17 @@ static int builtin_exit(char **argv)
//puts("exit"); /* bash does it */
// TODO: warn if we have background jobs: "There are stopped jobs"
// On second consecutive 'exit', exit anyway.
- if (argv[1] == NULL)
+ if (*++argv == NULL)
hush_exit(G.last_return_code);
/* mimic bash: exit 123abc == exit 255 + error msg */
xfunc_error_retval = 255;
/* bash: exit -2 == exit 254, no error msg */
- hush_exit(xatoi(argv[1]) & 0xff);
+ hush_exit(xatoi(*argv) & 0xff);
}
static int builtin_export(char **argv)
{
- const char *value;
- char *name = argv[1];
-
- if (name == NULL) {
+ if (*++argv == NULL) {
// TODO:
// ash emits: export VAR='VAL'
// bash: declare -x VAR="VAL"
@@ -5518,23 +5516,28 @@ static int builtin_export(char **argv)
return EXIT_SUCCESS;
}
- value = strchr(name, '=');
- if (!value) {
- /* They are exporting something without a =VALUE */
- struct variable *var;
-
- var = get_local_var(name);
- if (var) {
- var->flg_export = 1;
- debug_printf_env("%s: putenv '%s'\n", __func__, var->varstr);
- putenv(var->varstr);
+ do {
+ const char *value;
+ char *name = *argv;
+
+ value = strchr(name, '=');
+ if (!value) {
+ /* They are exporting something without a =VALUE */
+ struct variable *var;
+
+ var = get_local_var(name);
+ if (var) {
+ var->flg_export = 1;
+ debug_printf_env("%s: putenv '%s'\n", __func__, var->varstr);
+ putenv(var->varstr);
+ }
+ /* bash does not return an error when trying to export
+ * an undefined variable. Do likewise. */
+ continue;
}
- /* bash does not return an error when trying to export
- * an undefined variable. Do likewise. */
- return EXIT_SUCCESS;
- }
+ set_local_var(xstrdup(name), 1, 0);
+ } while (*++argv);
- set_local_var(xstrdup(name), 1, 0);
return EXIT_SUCCESS;
}