stest: restore stream testing - dmenu

commit 6b1d658d1224cd108d64a6c340d47b66ad99816d
parent 32ef0f5662bfe8b8891ba6341d3a27818fb55508
Author: Connor Lane Smith <cls@lubutu.com>
Date:   Fri,  9 Dec 2011 11:49:44 +0100

stest: restore stream testing
Diffstat:
M stest.1  | 3 ++-
M stest.c  | 9 ++++++++-

2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/stest.1 b/stest.1
@@ -13,7 +13,8 @@ stest \- filter a list of files by properties
 .B stest
 takes a list of files and filters by the files' properties, analogous to
 .IR test (1).
-Files which pass all tests are printed to stdout.
+Files which pass all tests are printed to stdout. If no files are given, stest
+reads files from stdin.
 .SH OPTIONS
 .TP
 .B \-a
diff --git a/stest.c b/stest.c
@@ -3,6 +3,7 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 #include <sys/stat.h>
 
@@ -17,7 +18,7 @@ static struct stat old, new;
 int
 main(int argc, char *argv[]) {
     struct dirent *d;
-    char buf[BUFSIZ];
+    char buf[BUFSIZ], *p;
     DIR *dir;
     int opt;
 
@@ -35,6 +36,12 @@ main(int argc, char *argv[]) {
             fprintf(stderr, "usage: %s [-abcdefghlpqrsuwx] [-n file] [-o file] [file...]\n", argv[0]);
             exit(2);
         }
+    if(optind == argc)
+        while(fgets(buf, sizeof buf, stdin)) {
+            if((p = strchr(buf, '\n')))
+                *p = '\0';
+            test(buf, buf);
+        }
     for(; optind < argc; optind++)
         if(FLAG('l') && (dir = opendir(argv[optind]))) {
             /* test directory contents */