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authorDmitry V. Levin <ldv@strace.io>2024-01-16 08:00:00 +0000
committerDmitry V. Levin <ldv@strace.io>2024-01-16 08:00:00 +0000
commit7055a56794dd18f7a29e4064d7f227ac3e04709c (patch)
tree4932e22c3ee734462cf497e2d1a1a2c6ddb157ac /modules
parentbb9edf1bdd543bddc9cb44df88d70e6b8d8d826b (diff)
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modules: do not invoke getline(3) unnecessarily
Replace while (getline(...) != -1 && retval) with while (retval && getline(...) != -1) * modules/pam_listfile/pam_listfile.c (pam_listfile): Do not invoke getline(3) when its result is going to be ignored. * modules/pam_securetty/pam_securetty.c (securetty_perform_check): Likewise.
Diffstat (limited to 'modules')
-rw-r--r--modules/pam_listfile/pam_listfile.c2
-rw-r--r--modules/pam_securetty/pam_securetty.c3
2 files changed, 2 insertions, 3 deletions
diff --git a/modules/pam_listfile/pam_listfile.c b/modules/pam_listfile/pam_listfile.c
index 6ac34744..b0bd2214 100644
--- a/modules/pam_listfile/pam_listfile.c
+++ b/modules/pam_listfile/pam_listfile.c
@@ -307,7 +307,7 @@ pam_listfile(pam_handle_t *pamh, int argc, const char **argv)
assert(PAM_SUCCESS == 0);
assert(PAM_AUTH_ERR != 0);
#endif
- while(getline(&aline,&n,inf) != -1 && retval) {
+ while(retval && getline(&aline,&n,inf) != -1) {
const char *a = aline;
aline[strcspn(aline, "\r\n")] = '\0';
diff --git a/modules/pam_securetty/pam_securetty.c b/modules/pam_securetty/pam_securetty.c
index 617af679..9264a309 100644
--- a/modules/pam_securetty/pam_securetty.c
+++ b/modules/pam_securetty/pam_securetty.c
@@ -157,8 +157,7 @@ securetty_perform_check (pam_handle_t *pamh, int ctrl,
retval = 1;
- while ((getline(&ttyfileline, &ttyfilelinelen, ttyfile) != -1)
- && retval) {
+ while (retval && getline(&ttyfileline, &ttyfilelinelen, ttyfile) != -1) {
ttyfileline[strcspn(ttyfileline, "\n")] = '\0';
retval = ( strcmp(ttyfileline, uttyname)