--- a/pidof.c	2006-09-21 15:14:03 +0100
+++ b/pidof.c	2006-09-21 15:13:47 +0100
@@ -53,14 +53,22 @@
 	struct kinfo_proc *p;
 	int i, n_processes, 
 	    processes_found = 0;
+	char *pname = NULL;
+
+	if (process_name == NULL)
+		return 0;
+
+	if ((pname = strdup(basename(process_name))) == NULL)
+		return 0;
 	
-	if ((kd = kvm_open("/dev/null", "/dev/null", "/dev/null", O_RDONLY, "kvm_open")) == NULL) 
-			 (void)errx(1, "%s", kvm_geterr(kd));
-	else {
+	if ((kd = kvm_open("/dev/null", "/dev/null", "/dev/null", O_RDONLY, NULL)) == NULL) {
+		free(pname);
+		(void)errx(1, "%s", kvm_geterr(kd));
+	} else {
 		p = kvm_getprocs(kd, KERN_PROC_PROC, 0, &n_processes);
 		for (i = 0; i<n_processes; i++) {
 			if (p[i].ki_pid != own_pid)
-				if (strncmp(process_name, p[i].ki_comm, COMMLEN+1) == 0) {
+				if (strncmp(pname, p[i].ki_comm, COMMLEN+1) == 0) {
 					(void)printf("%d ", (int)p[i].ki_pid);
 					processes_found++;
 				} else if (match_argv == 1) {
@@ -68,7 +76,7 @@
 					
 					if ((p_argv = kvm_getargv(kd, p+i, 0)) != NULL)
 						if ( *p_argv != NULL )
-							if (strcmp(process_name, basename(*p_argv)) == 0) {
+							if (strcmp(pname, basename(*p_argv)) == 0) {
 								(void)printf("%d ", (int)p[i].ki_pid);
 								processes_found++;
 								break;
@@ -77,6 +85,7 @@
 		}
 
 		kvm_close(kd);
+		free(pname);
 	}	
 	
 	return (processes_found);