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From 996e958ecde418244f6aca999b5b1edaeeeb009b Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Wed, 27 Nov 2013 22:37:52 +0100
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Subject: [PATCH] util: fix handling of trailing whitespace in split_quoted()
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Inspired by a patch by Lukas Nykryn.
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Conflicts:
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src/test/test-strv.c
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---
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src/shared/util.c | 24 +++++++++++++++---------
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src/test/test-strv.c | 26 ++++++++++++++++++++++++++
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2 files changed, 41 insertions(+), 9 deletions(-)
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diff --git a/src/shared/util.c b/src/shared/util.c
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index f602625..b1a4006 100644
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--- a/src/shared/util.c
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+++ b/src/shared/util.c
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@@ -370,17 +370,21 @@ char *split(const char *c, size_t *l, const char *separator, char **state) {
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/* Split a string into words, but consider strings enclosed in '' and
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* "" as words even if they include spaces. */
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char *split_quoted(const char *c, size_t *l, char **state) {
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- char *current, *e;
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+ const char *current, *e;
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bool escaped = false;
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- current = *state ? *state : (char*) c;
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+ assert(c);
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+ assert(l);
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+ assert(state);
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- if (!*current || *c == 0)
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- return NULL;
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+ current = *state ? *state : c;
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current += strspn(current, WHITESPACE);
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- if (*current == '\'') {
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+ if (*current == 0)
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+ return NULL;
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+
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+ else if (*current == '\'') {
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current ++;
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for (e = current; *e; e++) {
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@@ -393,7 +397,8 @@ char *split_quoted(const char *c, size_t *l, char **state) {
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}
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*l = e-current;
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- *state = *e == 0 ? e : e+1;
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+ *state = (char*) (*e == 0 ? e : e+1);
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+
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} else if (*current == '\"') {
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current ++;
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@@ -407,7 +412,8 @@ char *split_quoted(const char *c, size_t *l, char **state) {
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}
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*l = e-current;
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- *state = *e == 0 ? e : e+1;
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+ *state = (char*) (*e == 0 ? e : e+1);
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+
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} else {
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for (e = current; *e; e++) {
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if (escaped)
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@@ -418,10 +424,10 @@ char *split_quoted(const char *c, size_t *l, char **state) {
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break;
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}
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*l = e-current;
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- *state = e;
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+ *state = (char*) e;
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}
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- return (char*) current;
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+ return current;
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}
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int get_parent_of_pid(pid_t pid, pid_t *_ppid) {
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diff --git a/src/test/test-strv.c b/src/test/test-strv.c
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index c3d536d..ed26ad1 100644
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--- a/src/test/test-strv.c
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+++ b/src/test/test-strv.c
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@@ -156,6 +156,20 @@ static void test_strv_quote_unquote(const char* const *split, const char *quoted
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}
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}
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+static void test_strv_quote_unquote2(const char *quoted, const char ** list) {
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+ _cleanup_strv_free_ char **s;
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+ unsigned i = 0;
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+ char **t;
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+
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+ s = strv_split_quoted(quoted);
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+ assert_se(s);
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+
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+ STRV_FOREACH(t, s)
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+ assert_se(streq(list[i++], *t));
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+
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+ assert_se(list[i] == NULL);
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+}
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+
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static void test_strv_split_nulstr(void) {
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_cleanup_strv_free_ char **l = NULL;
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const char nulstr[] = "str0\0str1\0str2\0str3\0";
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@@ -309,6 +323,18 @@ int main(int argc, char *argv[]) {
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test_strv_quote_unquote(input_table_quotes, QUOTES_STRING);
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test_strv_quote_unquote(input_table_spaces, SPACES_STRING);
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+ test_strv_quote_unquote2(" foo=bar \"waldo\" zzz ", (const char*[]) { "foo=bar", "waldo", "zzz", NULL });
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+ test_strv_quote_unquote2("", (const char*[]) { NULL });
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+ test_strv_quote_unquote2(" ", (const char*[]) { NULL });
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+ test_strv_quote_unquote2(" ", (const char*[]) { NULL });
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+ test_strv_quote_unquote2(" x", (const char*[]) { "x", NULL });
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+ test_strv_quote_unquote2("x ", (const char*[]) { "x", NULL });
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+ test_strv_quote_unquote2(" x ", (const char*[]) { "x", NULL });
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+ test_strv_quote_unquote2(" \"x\" ", (const char*[]) { "x", NULL });
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+ test_strv_quote_unquote2(" \'x\' ", (const char*[]) { "x", NULL });
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+ test_strv_quote_unquote2(" \'x\"\' ", (const char*[]) { "x\"", NULL });
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+ test_strv_quote_unquote2(" \"x\'\" ", (const char*[]) { "x\'", NULL });
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+
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test_strv_split_nulstr();
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test_strv_parse_nulstr();
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test_strv_overlap();
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