$OpenBSD: patch-smtpclient_main_c,v 1.2 2003/04/01 18:52:05 sturm Exp $
--- smtpclient_main.c.orig	Wed Aug  1 15:25:22 2001
+++ smtpclient_main.c	Wed Aug  1 15:33:07 2001
@@ -86,7 +86,7 @@ void log(char *str, ...)
     char buf[1024];
 
     va_start(ap, str);
-    vsprintf(buf, str, ap);
+    vsnprintf(buf, 1024, str, ap);
     if (usesyslog)
         syslog(LOG_ERR, "SMTPclient: %s", buf);
     else
@@ -306,6 +306,7 @@
     int s;
     int r;
     int i;
+    size_t ll;
     struct passwd *pwd;
     char *cp;
 
@@ -395,16 +395,16 @@ int main(int argc, char **argv)
         log("%s: unknown host\n", my_name);
         exit(1);
     }
-    strcpy(my_name, hp->h_name);
+    strlcpy(my_name, hp->h_name, sizeof(my_name));
 
     /*
      *  Determine from address.
      */
     if (from_addr == NULL) {
         if ((pwd = getpwuid(getuid())) == 0) {
-            sprintf(buf, "userid-%d@%s", getuid(), my_name);
+            snprintf(buf, (sizeof(buf) - 1), "userid-%d@%s", getuid(), my_name);
         } else {
-            sprintf(buf, "%s@%s", pwd->pw_name, my_name);
+            snprintf(buf, (sizeof(buf) - 1), "%s@%s", pwd->pw_name, my_name);
         }
         from_addr = strdup(buf);
     }
@@ -496,12 +497,13 @@
         toqp(stdin, sfp);
     } else {
         while (fgets(buf, sizeof(buf), stdin)) {
-            buf[strlen(buf)-1] = 0;
-            if (strcmp(buf, ".") == 0) { /* quote alone dots */
-                fprintf(sfp, "..\r\n");
-            } else { /* pass thru mode */
-                fprintf(sfp, "%s\r\n", buf);
+            if ((ll = strlen(buf)) > 0 && buf[ll-1] == '\n') {
+                buf[ll-1] = 0;
             }
+            if (buf[0] == '.') { /* quote dots */
+                fprintf(sfp, ".");
+            }
+            fprintf(sfp, "%s\r\n", buf);
         }
     }
 

