85 lines
2.7 KiB
Diff
85 lines
2.7 KiB
Diff
commit f4166214552a92d8d66de8011ab11c9c2c6bb0a4
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Author: Ingo Franzki <ifranzki@linux.ibm.com>
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Date: Mon May 22 13:31:21 2023 +0200
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pkcsstats: Fix handling of user name
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The struct passwd returned by getpwuid() is a pointer to a static area, that
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may get overwritten by subsequent calls to getpwuid() or similar.
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Actually, C_Initialize() itself is using getpwuid() internally, and thus will
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interfere with the getpwuid() usage in pkcsstats.
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Make a copy of the returned user name before calling C_Initialize() in
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init_ock() to ensure to work with the desired user name, and not with anything
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left over from previous calls.
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Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
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diff --git a/usr/sbin/pkcsstats/pkcsstats.c b/usr/sbin/pkcsstats/pkcsstats.c
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index c2444cf5..a842a295 100644
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--- a/usr/sbin/pkcsstats/pkcsstats.c
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+++ b/usr/sbin/pkcsstats/pkcsstats.c
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@@ -783,6 +783,7 @@ int main(int argc, char **argv)
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int opt = 0;
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struct passwd *pswd = NULL;
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int user_id = -1;
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+ char *user_name = NULL;
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bool summary = false, all_users = false, all_mechs = false;
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bool reset = false, reset_all = false;
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bool delete = false, delete_all = false;
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@@ -903,19 +904,27 @@ int main(int argc, char **argv)
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}
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}
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+ user_name = strdup(pswd->pw_name);
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+ if (user_name == NULL) {
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+ warnx("Failed to get current user name");
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+ exit(EXIT_FAILURE);
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+ }
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+
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if (delete) {
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if (slot_id_specified) {
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warnx("Options -s/--slot and -d/--delete can not be specified together");
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+ free(user_name);
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exit(EXIT_FAILURE);
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}
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- rc = delete_shm(user_id, pswd->pw_name);
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+ rc = delete_shm(user_id, user_name);
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goto done;
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}
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if (delete_all) {
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if (slot_id_specified) {
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warnx("Options -s/--slot and -D/--delete-all can not be specified together");
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+ free(user_name);
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exit(EXIT_FAILURE);
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}
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@@ -932,7 +941,7 @@ int main(int argc, char **argv)
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goto done;
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if (reset) {
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- rc = reset_shm(user_id, pswd->pw_name, num_slots, slots,
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+ rc = reset_shm(user_id, user_name, num_slots, slots,
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slot_id_specified, slot_id);
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goto done;
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}
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@@ -968,7 +977,7 @@ int main(int argc, char **argv)
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rc = display_summary(&dd);
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goto done;
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} else {
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- rc = display_stats(user_id, pswd->pw_name, &dd);
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+ rc = display_stats(user_id, user_name, &dd);
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goto done;
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}
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@@ -984,5 +993,7 @@ done:
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dlclose(dll);
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}
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+ free(user_name);
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+
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return rc == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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