X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=plocate.cpp;h=66dfa918728ff7248f0705a92b857bca20e9ad62;hb=99a0a43a777176583f3525e11ef62185dd2be740;hp=9f3928b1a8349e8db0e57d82bb31fd8df59171ef;hpb=8c55aee2b5a22c067989043e5adb1cfce4ffddbf;p=plocate

diff --git a/plocate.cpp b/plocate.cpp
index 9f3928b..66dfa91 100644
--- a/plocate.cpp
+++ b/plocate.cpp
@@ -1,4 +1,5 @@
 #include "db.h"
+#include "dprintf.h"
 #include "io_uring_engine.h"
 #include "parse_trigrams.h"
 #include "turbopfor.h"
@@ -33,13 +34,6 @@
 using namespace std;
 using namespace std::chrono;
 
-#define dprintf(...) \
-	do { \
-		if (use_debug) { \
-			fprintf(stderr, __VA_ARGS__); \
-		} \
-	} while (false)
-
 #define DEFAULT_DBPATH "/var/lib/mlocate/plocate.db"
 
 const char *dbpath = DEFAULT_DBPATH;
@@ -668,6 +662,10 @@ int main(int argc, char **argv)
 		case 'l':
 		case 'n':
 			limit_matches = atoll(optarg);
+			if (limit_matches <= 0) {
+				fprintf(stderr, "Error: limit must be a strictly positive number.\n");
+				exit(1);
+			}
 			break;
 		case '0':
 			print_nul = true;
@@ -705,7 +703,6 @@ int main(int argc, char **argv)
 		Needle needle;
 		needle.str = argv[i];
 
-
 		// See if there are any wildcard characters, which indicates we should treat it
 		// as an (anchored) glob.
 		bool any_wildcard = false;