bore

commit 0c26c29860f604295a5258cab9384b67839fe57a
parent 689b713397599ca098850662a91cad236a513e62
Author: phoebos <ben@bvnf.space>
Date:   Sat, 21 May 2022 18:39:32 +0100

rm: add

Diffstat:
M
.gitignore
 | 
1
+
M
Makefile
 | 
3
++-
M
TODO.posix
 | 
2
+-
A
rm.c
 | 
42
++++++++++++++++++++++++++++++++++++++++++

4 files changed, 46 insertions(+), 2 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -8,6 +8,7 @@ ls
 mkdir
 nice
 pwd
+rm
 rmdir
 sort
 tee
diff --git a/Makefile b/Makefile
@@ -11,6 +11,7 @@ BINS = \
 	mkdir \
 	nice \
 	pwd \
+	rm \
 	rmdir \
 	sort \
 	tee \
@@ -20,7 +21,7 @@ BINS = \
 	wc \
 
 CC = cc
-XCFLAGS = $(CFLAGS) -Wall -Wextra -Wpedantic -g
+XCFLAGS = $(CFLAGS) -Wall -Wextra -std=c99 -pedantic -g -Og
 XLDFLAGS = $(LDFLAGS)
 
 .PHONY: clean
diff --git a/TODO.posix b/TODO.posix
@@ -85,7 +85,7 @@
 [ ] ps
 [x] pwd
 [ ] renice
-[ ] rm
+[.] rm
 [.] rmdir
 [ ] sed
 [ ] sh
diff --git a/rm.c b/rm.c
@@ -0,0 +1,42 @@
+#define _XOPEN_SOURCE 700
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+int
+rm(char *path) {
+    struct stat sb;
+    if (stat(path, &sb) == -1) {
+        fprintf(stderr, "rm: %s: %s\n", path, strerror(errno));
+        return 1;
+    }
+    if (unlink(path) == -1) {
+        fprintf(stderr, "rm: %s: %s\n", path, strerror(errno));
+        return 1;
+    }
+    return 0;
+}
+
+int
+main(int argc, char **argv) {
+    int c, ret = 0;
+    while ((c = getopt(argc, argv, "")) != -1) {
+        switch (c) {
+            default:
+                fprintf(stderr, "usage: %s file...\n", argv[0]);
+                return 1;
+        }
+    }
+
+    argc -= optind;
+    argv += optind;
+
+    while (argc--)
+        if (rm(*argv++) != 0)
+            ret = 1;
+    
+    return ret;
+}