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util: fix handling of trailing whitespace in split_quoted()

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Inspired by a patch by Lukas Nykryn.
This commit is contained in:
Lennart Poettering 2013-11-27 22:37:52 +01:00
parent fb1454005d
commit 70f75a523b
2 changed files with 42 additions and 9 deletions
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24
src/shared/util.c
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@ -373,17 +373,21 @@ char *split(const char *c, size_t *l, const char *separator, char **state) {
/* Split a string into words, but consider strings enclosed in '' and
* "" as words even if they include spaces. */
char *split_quoted(const char *c, size_t *l, char **state) {
char *current, *e;
const char *current, *e;
bool escaped = false;
current = *state ? *state : (char*) c;
assert(c);
assert(l);
assert(state);
if (!*current || *c == 0)
return NULL;
current = *state ? *state : c;
current += strspn(current, WHITESPACE);
if (*current == '\'') {
if (*current == 0)
return NULL;
else if (*current == '\'') {
current ++;
for (e = current; *e; e++) {
@ -396,7 +400,8 @@ char *split_quoted(const char *c, size_t *l, char **state) {
}
*l = e-current;
*state = *e == 0 ? e : e+1;
*state = (char*) (*e == 0 ? e : e+1);
} else if (*current == '\"') {
current ++;
@ -410,7 +415,8 @@ char *split_quoted(const char *c, size_t *l, char **state) {
}
*l = e-current;
*state = *e == 0 ? e : e+1;
*state = (char*) (*e == 0 ? e : e+1);
} else {
for (e = current; *e; e++) {
if (escaped)
@ -421,10 +427,10 @@ char *split_quoted(const char *c, size_t *l, char **state) {
break;
}
*l = e-current;
*state = e;
*state = (char*) e;
}
return (char*) current;
return current;
}
int get_parent_of_pid(pid_t pid, pid_t *_ppid) {

27
src/test/test-strv.c
View File

@ -143,6 +143,7 @@ static void test_strv_quote_unquote(const char* const *split, const char *quoted
char **t;
p = strv_join_quoted((char **)split);
assert_se(p);
printf("-%s- --- -%s-\n", p, quoted); /* fprintf deals with NULL, puts does not */
assert_se(p);
assert_se(streq(p, quoted));
@ -156,6 +157,20 @@ static void test_strv_quote_unquote(const char* const *split, const char *quoted
}
}
static void test_strv_quote_unquote2(const char *quoted, const char ** list) {
_cleanup_strv_free_ char **s;
unsigned i = 0;
char **t;
s = strv_split_quoted(quoted);
assert_se(s);
STRV_FOREACH(t, s)
assert_se(streq(list[i++], *t));
assert_se(list[i] == NULL);
}
static void test_strv_split(void) {
char **s;
unsigned i = 0;
@ -405,6 +420,18 @@ int main(int argc, char *argv[]) {
test_strv_quote_unquote(input_table_quotes, QUOTES_STRING);
test_strv_quote_unquote(input_table_spaces, SPACES_STRING);
test_strv_quote_unquote2(" foo=bar \"waldo\" zzz ", (const char*[]) { "foo=bar", "waldo", "zzz", NULL });
test_strv_quote_unquote2("", (const char*[]) { NULL });
test_strv_quote_unquote2(" ", (const char*[]) { NULL });
test_strv_quote_unquote2(" ", (const char*[]) { NULL });
test_strv_quote_unquote2(" x", (const char*[]) { "x", NULL });
test_strv_quote_unquote2("x ", (const char*[]) { "x", NULL });
test_strv_quote_unquote2(" x ", (const char*[]) { "x", NULL });
test_strv_quote_unquote2(" \"x\" ", (const char*[]) { "x", NULL });
test_strv_quote_unquote2(" \'x\' ", (const char*[]) { "x", NULL });
test_strv_quote_unquote2(" \'x\"\' ", (const char*[]) { "x\"", NULL });
test_strv_quote_unquote2(" \"x\'\" ", (const char*[]) { "x\'", NULL });
test_strv_split();
test_strv_split_newlines();
test_strv_split_nulstr();