coreutils

commit 3769747bdd8693a69b921b7f72d4813756c7f568
parent 4d7e03339ee37e06a140d3cc32b170910d8eef72
Author: evenfri <evenfri256@gmail.com>
Date:   Mon, 10 Aug 2026 04:00:29 +0800

update gitignore, add touch

Diffstat:
M
.gitignore
 | 
1
+
M
mkfile
 | 
15
++++++++-------
A
touch.c
 | 
25
+++++++++++++++++++++++++

3 files changed, 34 insertions(+), 7 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -2,3 +2,4 @@
 **/o.*
 mk-standalone/
 libc/
+test/
diff --git a/mkfile b/mkfile
@@ -6,13 +6,14 @@ ld = ld
 cflags = -I./libc
 lib = ./libc/libc.a
 
-targ = init \
-       echo \
-       cat \
-       pwd \
-       ls \
-       free \
-       sh \
+targ =  init \
+        echo \
+        cat \
+        pwd \
+        ls \
+        free \
+        sh \
+        touch \
 
 
 <$PLAN9/src/mkmany
diff --git a/touch.c b/touch.c
@@ -0,0 +1,25 @@
+#include <libc.h>
+
+#define eexist 17
+
+int main(int argc, char *argv[]) {
+  if (argc < 2) {
+    return 1;
+  }
+  
+  for (int i = 1; i < argc; i++) {
+    char *p = argv[i];
+    int fd = open(p, o_creat | o_excl | o_wronly, 0666);
+    if (fd == -1) {
+      if (errno == eexist) {
+        if (utime(p, NULL) == -1) {
+          write(stderr, "touch: utime: error\n", 20);
+        }
+      }
+    } else {
+      close(fd);
+    }
+  }
+
+  return 0;
+}