[hackers] [dmenu-5.4][PATCH] patch: dmenu-password

From: SOS Doni <donisos1146_AT_gmail.com>
Date: Thu, 30 Oct 2025 15:39:22 +0100

From: atagtm <donisos1146_AT_gmail.com>

---
dmenu.1 |  5 ++++-
dmenu.c | 20 ++++++++++++++++----
2 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/dmenu.1 b/dmenu.1
index 323f93c..762f707 100644
--- a/dmenu.1
+++ b/dmenu.1
_AT_@ -3,7 +3,7 @@
dmenu \- dynamic menu
.SH SYNOPSIS
.B dmenu
-.RB [ \-bfiv ]
+.RB [ \-bfivP ]
.RB [ \-l
.IR lines ]
.RB [ \-m
_AT_@ -47,6 +47,9 @@ is faster, but will lock up X until stdin reaches end\-of\-file.
.B \-i
dmenu matches menu items case insensitively.
.TP
+.B \-P
+dmenu will not directly display the keyboard input, but instead replace it with dots. All data from stdin will be ignored.
+.TP
.BI \-l " lines"
dmenu lists items vertically, with the given number of lines.
.TP
diff --git a/dmenu.c b/dmenu.c
index fd49549..65c5afa 100644
--- a/dmenu.c
+++ b/dmenu.c
_AT_@ -36,7 +36,7 @@ struct item {
static char text[BUFSIZ] = "";
static char *embed;
static int bh, mw, mh;
-static int inputw = 0, promptw;
+static int inputw = 0, promptw, passwd = 0;
static int lrpad; /* sum of left and right padding */
static size_t cursor;
static struct item *items = NULL;
_AT_@ -148,6 +148,7 @@ drawmenu(void)
   unsigned int curpos;
   struct item *item;
   int x = 0, y = 0, w;
+    char *censort;
   drw_setscheme(drw, scheme[SchemeNorm]);
   drw_rect(drw, 0, 0, mw, mh, 1, 1);
_AT_@ -159,7 +160,12 @@ drawmenu(void)
   /* draw input field */
   w = (lines > 0 || !matches) ? mw - x : inputw;
   drw_setscheme(drw, scheme[SchemeNorm]);
-    drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0);
+    if (passwd) {
+            censort = ecalloc(1, sizeof(text));
+        memset(censort, '.', strlen(text));
+        drw_text(drw, x, 0, w, bh, lrpad / 2, censort, 0);
+        free(censort);
+    } else drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0);
   curpos = TEXTW(text) - TEXTW(&text[cursor]);
   if ((curpos += lrpad / 2 - 1) < w) {
_AT_@ -551,6 +557,10 @@ readstdin(void)
   char *line = NULL;
   size_t i, itemsiz = 0, linesiz = 0;
   ssize_t len;
+    if(passwd){
+        inputw = lines = 0;
+        return;
+      }
   /* read each line from stdin and add it to the item list */
   for (i = 0; (len = getline(&line, &linesiz, stdin)) != -1; i++) {
_AT_@ -714,7 +724,7 @@ setup(void)
static void
usage(void)
{
-    die("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
+    die("usage: dmenu [-bfivP] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
       "             [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]");
}
_AT_@ -736,7 +746,9 @@ main(int argc, char *argv[])
       else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
           fstrncmp = strncasecmp;
           fstrstr = cistrstr;
-        } else if (i + 1 == argc)
+        } else if (!strcmp(argv[i], "-P"))   /* is the input a password */
+            passwd = 1;
+        else if (i + 1 == argc)
           usage();
       /* these options take one argument */
       else if (!strcmp(argv[i], "-l"))   /* number of lines in vertical list */
--
2.51.2

Received on Thu Oct 30 2025 - 15:39:22 CET