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hush: fix "export a=a b=b" (was not setting and exporting b)

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function                                             old     new   delta
builtin_export                                       103     117     +14
This commit is contained in:
Denis Vlasenko 2009-04-06 11:33:07 +00:00
parent c8d27334a0
commit b0a6478eef
1 changed files with 30 additions and 27 deletions
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57
shell/hush.c
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@ -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;
do {
const char *value;
char *name = *argv;
var = get_local_var(name);
if (var) {
var->flg_export = 1;
debug_printf_env("%s: putenv '%s'\n", __func__, var->varstr);
putenv(var->varstr);
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;
}