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path: root/modules/pam_unix/pam_unix_passwd.c
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Diffstat (limited to 'modules/pam_unix/pam_unix_passwd.c')
-rw-r--r--modules/pam_unix/pam_unix_passwd.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/modules/pam_unix/pam_unix_passwd.c b/modules/pam_unix/pam_unix_passwd.c
index 9947f12a..7c141c3b 100644
--- a/modules/pam_unix/pam_unix_passwd.c
+++ b/modules/pam_unix/pam_unix_passwd.c
@@ -339,17 +339,18 @@ static int _unix_run_update_binary(pam_handle_t *pamh, unsigned long long ctrl,
static int check_old_password(const char *forwho, const char *newpass)
{
- static char buf[16384];
+ char *buf = NULL;
char *s_pas;
int retval = PAM_SUCCESS;
FILE *opwfile;
+ size_t n = 0;
size_t len = strlen(forwho);
opwfile = fopen(OLD_PASSWORDS_FILE, "r");
if (opwfile == NULL)
return PAM_ABORT;
- while (fgets(buf, 16380, opwfile)) {
+ while (getline(&buf, &n, opwfile) != -1) {
if (!strncmp(buf, forwho, len) && (buf[len] == ':' ||
buf[len] == ',')) {
char *sptr;
@@ -371,6 +372,7 @@ static int check_old_password(const char *forwho, const char *newpass)
break;
}
}
+ free(buf);
fclose(opwfile);
return retval;