Compile with Werror flag. Found bug in xargs

TODO

@@ -1,7 +1,6 @@
 With "micro-" prefix
 
 *Todo:
-*echo
 tail
 expr
 uniq
@@ -54,7 +53,7 @@ Modutils (linux only):
 Findutils:
  grep
  find
- *xargs (-r flag)
+
 Shell:
  rc - run command (1 2 3 ~ | <> <<>> & * " parsing) (sig handler)
 
@@ -63,3 +62,4 @@ Init:
 
 BUGS:
 	ls (unicode strlen, -l flag col)
+	xargs (getopt with glibc)

config.h

@@ -31,6 +31,8 @@
 
 /* Max args (xargs) */
 #define NARGS 1024
+
+/* Arg size (xargs) */
 #define ARG_SIZE 1024
 
 /* Default cmd (xargs) */

coreutils/cat.c

@@ -19,7 +19,10 @@ int cat(const char *path) {
 	char buf[BUF_SIZE + 1];
 	off_t len = 0;
 	while ((len = read(fd, buf, sizeof(buf))) > 0)
-		write(STDOUT_FILENO, buf, len);
+		if (write(STDOUT_FILENO, buf, len) != len) {
+			fprintf(stderr, "cat: %s\n", strerror(errno));
+			return 1;
+		}
 
 	if (strcmp(path, "-"))
 		close(fd);

coreutils/chroot.c

@@ -15,7 +15,7 @@ int main(const int argc, char **argv) {
 		return 1;
 	}
 
-	chdir("/");
+	(void)chdir("/");
 	if (execvp(argv[2], argv + 2) < 0) {
 		fprintf(stderr, "chroot: %s\n", strerror(errno));
 		return 1;

coreutils/shred.c

@@ -26,7 +26,7 @@ int shred(int rand_fd, int fd) {
 	}
 
 	for (unsigned int n = 0; n < n_loops; n++) {
-		read(rand_fd, buf, size);
+		(void)read(rand_fd, buf, size);
 		fsync(fd);
 	}
 

coreutils/tee.c

@@ -42,10 +42,10 @@ int main(int argc, char **argv) {
 	char buf[BUF_SIZE + 1];
 	off_t bytes = 0;
 	while ((bytes = read(STDIN_FILENO, buf, sizeof(buf)))) {
-		write(STDOUT_FILENO, buf, bytes);
+		(void)write(STDOUT_FILENO, buf, bytes);
 
 		if (argc > 0)
-			write(fd, buf, bytes);
+			(void)write(fd, buf, bytes);
 	}
 
 	if (argc > 0)

sysutils-linux/dmesg.c

@@ -57,7 +57,7 @@ int main(int argc, char **argv) {
 
 
 	/* Print */
-	write(STDOUT_FILENO, buf, n);
+	(void)write(STDOUT_FILENO, buf, n);
 	putchar('\n');
 
 	free(buf);