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basic/env-util: correctly parse extended vars after non-extended vars (#20941)

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Andrew Soutar 2021-10-05 22:55:27 -04:00 committed by GitHub
parent 8ac04a6547
commit 5ef97a7122
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2 changed files with 5 additions and 1 deletions
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1
src/basic/env-util.c
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@ -615,6 +615,7 @@ char *replace_env_n(const char *format, size_t n, char **env, unsigned flags) {
word = e+1;
state = WORD;
nest--;
} else if (*e == ':') {
if (flags & REPLACE_ENV_ALLOW_EXTENDED) {
len = e - word - 2;

5
src/test/test-env-util.c
View File

@ -217,7 +217,7 @@ static void test_replace_env2(bool extended) {
"BAR=bar",
NULL
};
_cleanup_free_ char *t = NULL, *s = NULL, *q = NULL, *r = NULL, *p = NULL, *x = NULL;
_cleanup_free_ char *t = NULL, *s = NULL, *q = NULL, *r = NULL, *p = NULL, *x = NULL, *y = NULL;
unsigned flags = REPLACE_ENV_ALLOW_EXTENDED*extended;
t = replace_env("FOO=${FOO:-${BAR}}", (char**) env, flags);
@ -237,6 +237,9 @@ static void test_replace_env2(bool extended) {
x = replace_env("XXX=${XXX:+${BAR}post}", (char**) env, flags);
assert_se(streq(x, extended ? "XXX=" : "XXX=${XXX:+barpost}"));
y = replace_env("FOO=${FOO}between${BAR:-baz}", (char**) env, flags);
assert_se(streq(y, extended ? "FOO=foobetweenbar" : "FOO=foobetween${BAR:-baz}"));
}
static void test_replace_env_argv(void) {