2 files changed, 7 insertions, 4 deletions

diff --git a/stest.1 b/stest.1
index bb48f45..2667d8a 100644
--- a/stest.1
+++ b/stest.1
@@ -67,6 +67,9 @@ Test that files are not empty.
 .B \-u
 Test that files have their set-user-ID flag set.
 .TP
+.B \-v
+Invert the sense of tests, only failing files pass.
+.TP
 .B \-w
 Test that files are writable.
 .TP
diff --git a/stest.c b/stest.c
index e1dcf36..8fac42a 100644
--- a/stest.c
+++ b/stest.c
@@ -22,7 +22,7 @@ main(int argc, char *argv[]) {
         DIR *dir;
         int opt;
 
-        while((opt = getopt(argc, argv, "abcdefghln:o:pqrsuwx")) != -1)
+        while((opt = getopt(argc, argv, "abcdefghln:o:pqrsuvwx")) != -1)
                 switch(opt) {
                 case 'n': /* newer than file */
                 case 'o': /* older than file */
@@ -33,7 +33,7 @@ main(int argc, char *argv[]) {
                         FLAG(opt) = true;
                         break;
                 case '?': /* error: unknown flag */
-                        fprintf(stderr, "usage: %s [-abcdefghlpqrsuwx] [-n file] [-o file] [file...]\n", argv[0]);
+                        fprintf(stderr, "usage: %s [-abcdefghlpqrsuvwx] [-n file] [-o file] [file...]\n", argv[0]);
                         exit(2);
                 }
         if(optind == argc)
@@ -60,7 +60,7 @@ void
 test(const char *path, const char *name) {
         struct stat st, ln;
 
-        if(!stat(path, &st) && (FLAG('a') || name[0] != '.')          /* hidden files      */
+        if((!stat(path, &st) && (FLAG('a') || name[0] != '.')         /* hidden files      */
         && (!FLAG('b') || S_ISBLK(st.st_mode))                        /* block special     */
         && (!FLAG('c') || S_ISCHR(st.st_mode))                        /* character special */
         && (!FLAG('d') || S_ISDIR(st.st_mode))                        /* directory         */
@@ -75,7 +75,7 @@ test(const char *path, const char *name) {
         && (!FLAG('s') || st.st_size > 0)                             /* not empty         */
         && (!FLAG('u') || st.st_mode & S_ISUID)                       /* set-user-id flag  */
         && (!FLAG('w') || access(path, W_OK) == 0)                    /* writable          */
-        && (!FLAG('x') || access(path, X_OK) == 0)) {                 /* executable        */
+        && (!FLAG('x') || access(path, X_OK) == 0)) != FLAG('v')) {   /* executable        */
                 if(FLAG('q'))
                         exit(0);
                 match = true;