pppd: Use a compile test to detect crypt.h (#198)

[ppp.git] / pppd / plugins / passprompt.c

diff --git a/pppd/plugins/passprompt.c b/pppd/plugins/passprompt.c
index 6c2c8284fd535c79384e0fb389f2198bfa54f665..ab9f390c2d1c968c8054b60e1e5da7cc81eb5e00 100644 (file)
--- a/pppd/plugins/passprompt.c
+++ b/pppd/plugins/passprompt.c
@@ -17,6 +17,7 @@
 char pppd_version[] = VERSION;
 
 static char promptprog[PATH_MAX+1];
+static int promptprog_refused = 0;
 
 static option_t options[] = {
     { "promptprog", o_string, promptprog,
@@ -32,7 +33,7 @@ static int promptpass(char *user, char *passwd)
     int readgood, wstat;
     ssize_t red;
 
-    if (promptprog[0] == 0 || access(promptprog, X_OK) < 0)
+    if (promptprog_refused || promptprog[0] == 0 || access(promptprog, X_OK) < 0)
        return -1;      /* sorry, can't help */
 
     if (!passwd)
@@ -50,7 +51,7 @@ static int promptpass(char *user, char *passwd)
     }
     if (!kid) {
        /* we are the child, exec the program */
-       char *argv[4], fdstr[32];
+       char *argv[5], fdstr[32];
        sys_close();
        closelog();
        close(p[0]);
@@ -74,18 +75,19 @@ static int promptpass(char *user, char *passwd)
        if (red == 0)
            break;
        if (red < 0) {
+           if (errno == EINTR && !got_sigterm)
+               continue;
            error("Can't read secret from %s: %m", promptprog);
            readgood = -1;
            break;
        }
        readgood += red;
     } while (readgood < MAXSECRETLEN - 1);
-    passwd[readgood] = 0;
     close(p[0]);
 
     /* now wait for child to exit */
     while (waitpid(kid, &wstat, 0) < 0) {
-       if (errno != EINTR) {
+       if (errno != EINTR || got_sigterm) {
            warn("error waiting for %s: %m", promptprog);
            break;
        }
@@ -93,11 +95,17 @@ static int promptpass(char *user, char *passwd)
 
     if (readgood < 0)
        return 0;
+    passwd[readgood] = 0;
     if (!WIFEXITED(wstat))
        warn("%s terminated abnormally", promptprog);
-    if (WEXITSTATUS(wstat))
-       warn("%s exited with code %d", promptprog, WEXITSTATUS(status));
-
+    if (WEXITSTATUS(wstat)) {
+           warn("%s exited with code %d", promptprog, WEXITSTATUS(wstat));
+           /* code when cancel was hit in the prompt prog */
+           if (WEXITSTATUS(wstat) == 128) {
+               promptprog_refused = 1;
+           }
+           return -1;
+    }
     return 1;
 }
 
@@ -105,4 +113,7 @@ void plugin_init(void)
 {
     add_options(options);
     pap_passwd_hook = promptpass;
+#ifdef USE_EAPTLS
+    eaptls_passwd_hook = promptpass;
+#endif
 }