* modules/pam_loginuid/pam_loginuid.c (set_loginuid): Log those errors during /proc/self/loginuid update that are not ignored. --- modules/pam_loginuid/pam_loginuid.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/modules/pam_loginuid/pam_loginuid.c b/modules/pam_loginuid/pam_loginuid.c index c476f7b..73c42f9 100644 --- a/modules/pam_loginuid/pam_loginuid.c +++ b/modules/pam_loginuid/pam_loginuid.c @@ -75,8 +75,8 @@ static int set_loginuid(pam_handle_t *pamh, uid_t uid) rc = PAM_IGNORE; } if (rc != PAM_IGNORE) { - pam_syslog(pamh, LOG_ERR, - "Cannot open /proc/self/loginuid: %m"); + pam_syslog(pamh, LOG_ERR, "Cannot open %s: %m", + "/proc/self/loginuid"); } return rc; } @@ -88,8 +88,14 @@ static int set_loginuid(pam_handle_t *pamh, uid_t uid) goto done; /* already correct */ } if (lseek(fd, 0, SEEK_SET) == 0 && ftruncate(fd, 0) == 0 && - pam_modutil_write(fd, loginuid, count) == count) + pam_modutil_write(fd, loginuid, count) == count) { rc = PAM_SUCCESS; + } else { + if (rc != PAM_IGNORE) { + pam_syslog(pamh, LOG_ERR, "Error writing %s: %m", + "/proc/self/loginuid"); + } + } done: close(fd); return rc;