https://sources.debian.org/data/main/a/a2ps/1:4.14-2/debian/patches/fix-format-security.diff

Index: b/lib/psgen.c
===================================================================
--- a/lib/psgen.c
+++ b/lib/psgen.c
@@ -232,7 +232,7 @@
     default:
       *buf = '\0';
       ps_escape_char (job, cp[i], buf);
-      output (jdiv, (char *) buf);
+      output (jdiv, "%s", (char *) buf);
       break;
     }
   }
Index: b/lib/output.c
===================================================================
--- a/lib/output.c
+++ b/lib/output.c
@@ -525,7 +525,7 @@
 		     expand_user_string (job, FIRST_FILE (job),
 					 (const uchar *) "Expand: requirement",
 					 (const uchar *) token));
-	output (dest, expansion);
+	output (dest, "%s", expansion);
 	continue;
       }
 
Index: b/lib/parseppd.y
===================================================================
--- a/lib/parseppd.y
+++ b/lib/parseppd.y
@@ -154,7 +154,7 @@
 void
 yyerror (const char *msg)
 {
-  error_at_line (1, 0, ppdfilename, ppdlineno, msg);
+  error_at_line (1, 0, ppdfilename, ppdlineno, "%s", msg);
 }
 
 /*
Index: b/src/parsessh.y
===================================================================
--- a/src/parsessh.y
+++ b/src/parsessh.y
@@ -740,7 +740,7 @@
 void
 yyerror (const char *msg)
 {
-  error_at_line (1, 0, sshfilename, sshlineno, msg);
+  error_at_line (1, 0, sshfilename, sshlineno, "%s", msg);
 }
 
 /*
Index: b/lib/parseppd.c
===================================================================
--- a/lib/parseppd.c
+++ b/lib/parseppd.c
@@ -1707,7 +1707,7 @@
 void
 yyerror (const char *msg)
 {
-  error_at_line (1, 0, ppdfilename, ppdlineno, msg);
+  error_at_line (1, 0, ppdfilename, ppdlineno, "%s", msg);
 }
 
 /*
Index: b/src/parsessh.c
===================================================================
--- a/src/parsessh.c
+++ b/src/parsessh.c
@@ -2639,7 +2639,7 @@
 void
 yyerror (const char *msg)
 {
-  error_at_line (1, 0, sshfilename, sshlineno, msg);
+  error_at_line (1, 0, sshfilename, sshlineno, "%s", msg);
 }
 
 /*
href='/guix/log/etc?id=182a080127f0905ed59b212622919a2878315a84'>etc</a>/<a href='/guix/log/etc/init.d?id=182a080127f0905ed59b212622919a2878315a84'>init.d</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/etc/init.d?id=182a080127f0905ed59b212622919a2878315a84&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-03-11 02:45:33 +0100'>2020-03-11</span></td><td><a href='/guix/commit/etc/init.d?id=73fbe04107d38f4561636c74d28d7a4935cbb1ef'>Add system start-up files for guix-daemon.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/init.d/guix-daemon.in: New file.
* nix/local.mk (etc/init.d/guix-daemon): New rule.
(nodist_sysvinitservice_DATA): Add etc/init.d/guix-daemon.in .
(CLEANFILES): Add etc/init.d/guix-daemon .
* .gitignore: Add etc/init.d/guix-daemon .
</span></span></td><td>Danny Milosavljevic</td></tr>