coreutils

commit 4d71e9c860b1a03ccad3c4dff59b9816a116c354
parent 8bfb2debce084249194437fd0c92e5be69111b73
Author: evenfri <evenfri256@gmail.com>
Date:   Tue, 11 Aug 2026 03:04:21 +0800

add rm (without rmdir)

Diffstat:
M
mkdir.c
 | 
4
++--
M
mkfile
 | 
1
+
A
rm.c
 | 
67
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

3 files changed, 70 insertions(+), 2 deletions(-)
diff --git a/mkdir.c b/mkdir.c
@@ -34,7 +34,7 @@ size_t strcspn(const char *s1, const char *s2) {
 
 int main(int argc, char *argv[]) {
   if (argc < 2) {
-    write(stdout, "using: mkdir [options] <path>\n", 30);
+    write(stderr, "using: mkdir [options] <path>\n", 30);
     return 1;
   }
 
@@ -73,7 +73,7 @@ int main(int argc, char *argv[]) {
       }
     } else  {
       int r = mkdir(path, 0777);
-      if (r < 0 && errno != eexist)
+      if (r < 0)
         return errno;
     }
   }
diff --git a/mkfile b/mkfile
@@ -15,6 +15,7 @@ targ =  init \
         sh \
         touch \
         mkdir \
+        rm \
 
 
 <$PLAN9/src/mkmany
diff --git a/rm.c b/rm.c
@@ -0,0 +1,67 @@
+#include <libc.h>
+
+#define enoent 2
+#define enotdir 20
+#define eisdir 21
+
+#define dt_unknown 0
+#define dt_reg 8
+#define dt_dir 4
+
+int has_r;
+int has_f;
+
+int first;
+
+
+void rm_tree(char **argv) {
+  (void)argv;
+}
+
+void rm_file(char **argv) {
+  char *f;
+  int r;
+
+  while ((f = *argv++) != NULL) {
+    r = unlink(f);
+
+    if (r < 0) {
+      if (has_f && errno == enoent) 
+        continue;
+      return;
+    }
+  }
+}
+
+int main(int argc, char *argv[]) {
+  if (argc < 2) {
+    write(stderr, "using: rm [options] <path>\n", 27);
+    return 1;
+  }
+
+  for (int i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "-r") == 0) {
+      has_r = 1;
+      continue;
+    }
+    if (strcmp(argv[i], "-f") == 0) {
+      has_f = 1;
+      continue;
+    }
+    if (strcmp(argv[i], "-rf") == 0) {
+      has_r = 1;
+      has_f = 1;
+      continue;
+    }
+
+    first = i;
+    break;
+  }
+
+  if (has_r)
+    rm_tree(&argv[first]);
+  else
+    rm_file(&argv[first]);
+
+  return 0;
+}