Commit 4af3d83170fd changed the @opt parameter to conf_runas() to a const
pointer, to remove a cppcheck error. However, that error was a false
positive. We *do* modify that parameter via an aliased pointer within it
retreived from strchr(). At least with gcc 16.1.1 that now causes a
"discards const" warning. Revert that change and instead directly suppress
the cppcheck warning.
Fixes: 4af3d83170fd ("treewide: Fix more pointers which can be const")
Signed-off-by: David Gibson
---
conf.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/conf.c b/conf.c
index 4a4ab489..8acf66cc 100644
--- a/conf.c
+++ b/conf.c
@@ -925,7 +925,8 @@ dns6:
*
* Return: 0 on success, negative error code on failure
*/
-static int conf_runas(const char *opt, unsigned int *uid, unsigned int *gid)
+/* cppcheck-suppress [constParameterPointer,unmatchedSuppression] */
+static int conf_runas(char *opt, unsigned int *uid, unsigned int *gid)
{
const char *uopt, *gopt = NULL;
char *sep = strchr(opt, ':');
@@ -977,7 +978,7 @@ static int conf_runas(const char *opt, unsigned int *uid, unsigned int *gid)
* @uid: User ID, set on success
* @gid: Group ID, set on success
*/
-static void conf_ugid(const char *runas, uid_t *uid, gid_t *gid)
+static void conf_ugid(char *runas, uid_t *uid, gid_t *gid)
{
/* If user has specified --runas, that takes precedence... */
if (runas) {
@@ -1247,7 +1248,7 @@ void conf(struct ctx *c, int argc, char **argv)
uint8_t prefix_len_from_opt = 0;
unsigned int ifi4 = 0, ifi6 = 0;
const char *logfile = NULL;
- const char *runas = NULL;
+ char *runas = NULL;
size_t logsize = 0;
long fd_tap_opt;
int name, ret;
--
2.54.0