man page, dist.sh, README is now plain text, Makefile is now posix

9 files changed, 152 insertions, 31 deletions

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..2f14ddf
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,3 @@
+.gitignore export-ignore
+.gitattributes export-ignore
+dist.sh export-ignore
diff --git a/README b/README
new file mode 100644
index 0000000..fbabbef
--- /dev/null
+++ b/README
@@ -0,0 +1,19 @@
+=========================================================================
+BTASKTD v0.0.0
+=========================================================================
+
+Lightweight, fast and free daemon for task tracking.
+
+Written in limited C99 (closer to C89), builds statically.
+
+-------------------------------------------------------------------------
+BUILD DEPENDENCIES
+-------------------------------------------------------------------------
+* make (either gmake or POSIX make)
+* any compiler that supports C99 (it is harder to find one that does NOT)
+* libc
+
+-------------------------------------------------------------------------
+RUNTIME DEPENDENCIES
+-------------------------------------------------------------------------
+* OS Kernel
diff --git a/README.md b/README.md
deleted file mode 100644
index eb10f22..0000000
--- a/README.md
+++ /dev/null
@@ -1 +0,0 @@
-# btasktd
diff --git a/btasktd.1 b/btasktd.1
new file mode 100644
index 0000000..e354724
--- /dev/null
+++ b/btasktd.1
@@ -0,0 +1,41 @@
+.Dd September 19, 2026
+.Dt BTASKTD 1
+.Os
+.
+.Sh NAME
+.Nm btasktd
+.Nd task tracking TCP-server
+.
+.Sh SYNOPSIS
+.Nm
+.BK -words
+.Op Fl \&Vh
+.Op Fl p Ar port
+.Op Fl u Ar users
+.Ek
+.
+.Sh DESCRIPTION
+.Nm
+is a btaskt protocol server daemon.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl V
+Show version
+.It Fl h
+Show help message
+.It Fl p Ar port
+Set port for server to listen to
+.It Fl u Ar users
+Set max clients count
+.El
+.
+.Sh AUTHORS
+.An Mr. Goblin
+.
+.Sh LICENSE
+.Nm
+is licensed under terms of BSD 2-Clause License.
+See
+.Pa LICENSE
+file for copyright and license details.
diff --git a/dist.sh b/dist.sh
new file mode 100755
index 0000000..cb05b36
--- /dev/null
+++ b/dist.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+PROG_NAME="btasktd"
+VER="0.0.0"
+DIST_NAME="$PROG_NAME-$VER"
+
+git archive --format=tar --prefix="$DIST_NAME/" HEAD | bzip2 > "$DIST_NAME.tar.bz2"
diff --git a/src/Makefile b/src/Makefile
index fa8ddc8..2e8dd64 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -5,18 +5,26 @@
 # CC = cc -fno-caret-diagnostics -fno-color-diagnostics
 CC = gcc -fno-diagnostics-show-caret -fdiagnostics-color=never
 # CC = gcc
-CFLAGS = -g -Wall -Wextra -pedantic -std=c99
-STATIC = -static
+CFLAGS = -Wall -Wextra -pedantic -std=c99
+
+# DEBUG = -g
+# DEBUG = -ggdb
+DEBUG =
+
+# STATIC = -static
+STATIC = -static -s
 # STATIC =
 
 MAINBINARIES = btasktd
 
+.SUFFIXES = .c .o
+
 all: $(MAINBINARIES)
 
 clean:
-	rm -f $(MAINBINARIES) *.o
+	rm -f $(MAINBINARIES) *.o *.test
 
-%.o: %.c
+.c.o:
 	$(CC) $(CFLAGS) -c $< -o $@
 
 
diff --git a/src/btasktd.c b/src/btasktd.c
index 34e1fae..9878a3d 100644
--- a/src/btasktd.c
+++ b/src/btasktd.c
@@ -64,16 +64,24 @@ fprint_help(FILE *f)
 	fputs(BTASKTD_HELP_STR, f);
 }
 
+static void
+set_nonblock(int fd)
+{
+	int fflags = fcntl(fd, F_GETFL);
+	fcntl(fd, F_SETFL, fflags|O_NONBLOCK);
+}
+
 int
 main(int argc, char **argv)
 {
-	int server_fd, opt = 1, res, fflags, port, passed_flags = 1;
+	int server_fd, opt = 1, res, port, passed_flags = 1, users_cnt;
+	int *users = NULL;
 	struct sockaddr_in addr = {0};
-	struct int_flag_val port_res;
+	struct int_flag_val int_res;
 	struct bool_flag_val show_ver, show_help;
 
 	show_ver = extract_bool_flag('V', argc, argv);
-	if (show_ver.code == fvr_ok && show_ver.data) {
+	if (fvr_ok == show_ver.code && show_ver.data) {
 		printf("btasktd version %s\n", BTASKTD_VERSION_STR);
 		return 0;
 	}
@@ -84,8 +92,8 @@ main(int argc, char **argv)
 		return 0;
 	}
 
-	port_res = extract_int_flag('p', argc, argv);
-	switch (port_res.code) {
+	int_res = extract_int_flag('p', argc, argv);
+	switch (int_res.code) {
 	case fvr_not_found:
 #		ifdef BTASKTD_DEFAULT_PORT
 			port = BTASKTD_DEFAULT_PORT;
@@ -94,11 +102,35 @@ main(int argc, char **argv)
 			passed_flags = 0;
 #		endif
 		break;
+	case fvr_ok:
+		port = int_res.data;
+		if (port > 0)
+			break;
+		/* fallthrough */
 	case fvr_invalid:
 		fputs("Invalid port!\n", stderr);
 		return 1;
+		break;
+	}
+
+	int_res = extract_int_flag('u', argc, argv);
+	switch (int_res.code) {
+	case fvr_not_found:
+#		ifdef BTASKTD_DEFAULT_USERS_CNT
+			users_cnt = BTASKTD_DEFAULT_USERS_CNT;
+#		else
+			fputs("No users count specified!\n", stderr);
+			passed_flags = 0;
+#		endif
+		break;
 	case fvr_ok:
-		port = port_res.data;
+		users = int_res.data;
+		if (users > 0)
+			break;
+		/* fallthrough */
+	case fvr_invalid:
+		fputs("Invalid users count!\n", stderr);
+		return 1;
 		break;
 	}
 
@@ -107,8 +139,15 @@ main(int argc, char **argv)
 		return 1;
 	}
 
+	users = (int*)malloc(users_cnt * sizeof(int));
+	if (NULL == users) {
+		fputs("No memory!\n", stderr);
+		return 1;
+	}
+
 	server_fd = socket(AF_INET, SOCK_STREAM, 0);
 	if (server_fd < 0) {
+		free(users);
 		perror("socket");
 		return 1;
 	}
@@ -118,12 +157,14 @@ main(int argc, char **argv)
 	res = bind(server_fd, (struct sockaddr*)&addr, sizeof(addr));
 	if (0 != res) {
 		close(server_fd);
+		free(users);
 		perror("bind");
 		return 1;
 	}
 	res = listen(server_fd, BTASKTD_QUEUE_LEN);
 	if (0 != res) {
 		close(server_fd);
+		free(users);
 		perror("listen");
 		return 1;
 	}
@@ -131,17 +172,18 @@ main(int argc, char **argv)
 		&opt, sizeof(opt));
 	if (0 != res) {
 		close(server_fd);
+		free(users);
 		perror("setsockopt");
 		return 1;
 	}
-	fflags = fcntl(server_fd, F_GETFL);
-	fcntl(server_fd, F_SETFL, fflags|O_NONBLOCK);
 
+	set_nonblock(server_fd);
 	printf("btaskt server btasktd started on port %d\n", port);
 
 	/* main loop here */
 
 	printf("btaskt server btasktd stopped\n");
 	close(server_fd);
+	free(users);
 	return 0;
 }
diff --git a/src/cliflags.c b/src/cliflags.c
index f34a889..e3ff7f2 100644
--- a/src/cliflags.c
+++ b/src/cliflags.c
@@ -64,9 +64,9 @@ extract_str_flag(char flagletter, int argc, char **argv)
 	for (i = 1; i < argc; i++)
 		if (0 == strcmp(flagstr, argv[i]))
 			break;
-	if (i >= argc) {
+	if (argc <= i) {
 		res.code = fvr_not_found;
-	} else if (i == argc-1) {
+	} else if (argc-1 == i) {
 		res.code = fvr_invalid;
 	} else {
 		res.code = fvr_ok;
@@ -84,11 +84,11 @@ extract_int_flag(char flagletter, int argc, char **argv)
 		extract_str_flag(flagletter, argc, argv);
 	char *endptr;
 	res.code = strres.code;
-	if (res.code != fvr_ok) {
+	if (fvr_ok != res.code) {
 		return res;
 	}
 	res.data = strtol(strres.data, &endptr, 10);
-	if (*endptr != '\0')
+	if ('\0' != *endptr)
 		res.code = fvr_invalid;
 	return res;
 }
diff --git a/src/db.c b/src/db.c
index 6357388..c547013 100644
--- a/src/db.c
+++ b/src/db.c
@@ -78,15 +78,15 @@ does_dir_exist(const char *path)
 	res.code = dbe_ok;
 	res.data = 1;
 	code = stat(path, &st);
-	if (code != 0) {
-		if (errno == ENOENT)
+	if (0 != code) {
+		if (ENOENT == errno)
 			res.data = 0;
-		else if (errno == EACCES)
+		else if (EACCES == errno)
 			res.code = dbe_access;
 		else
 			res.code = dbe_unknown;
 	} else {
-		res.data = ((st.st_mode & S_IFMT) == S_IFDIR) ? 1 : 0;
+		res.data = S_IFDIR == (st.st_mode & S_IFMT);
 	}
 	return res;
 }
@@ -97,15 +97,15 @@ make_dir_ifne(const char *path, int rights)
 	struct db_value_int val = {0};
 	int code;
 	val = does_dir_exist(path);
-	if (val.code != dbe_ok)
+	if (dbe_ok != val.code)
 		return val.code;
 	else if (val.data)
 		return dbe_ok;
 	code = mkdir(path, rights);
 	if (code != 0) {
-		if (errno == EACCES)
+		if (EACCES == errno)
 			return dbe_access;
-		else if (errno == EEXIST)
+		else if (EEXIST == errno)
 			return dbe_notdir;
 	}
 	return dbe_ok;
@@ -117,18 +117,20 @@ do_make_dir_path(const char *path, int rights)
 	char buf[DIR_NAME_BUF_SIZE] = {0};
 	const char *p = find_chr_or_zero(path, '/');
 	unsigned sz = p - path + 1, code;
-	if (sz > sizeof(buf))
+	if (sizeof(buf) < sz)
 		return dbe_inval;
 	strncpy(buf, path, sz);
 	buf[sz-1] = '\0';
 	code = make_dir_ifne(buf, rights);
-	if (code != dbe_ok)
+	if (dbe_ok != code)
 		return code;
 	if (*p) {
 		code = chdir(buf);
 		if (0 != code)
 			return dbe_access;
-		do_make_dir_path(p+1, rights);
+		code = do_make_dir_path(p+1, rights);
+		if (dbe_ok != code)
+			return code;
 		code = chdir("..");
 		if (0 != code)
 			return dbe_access;
@@ -171,20 +173,20 @@ main(void)
 	for (i = 0; i < 10; i++)
 		TEST_CODE(make_dir_path(path, 0777));
 	pid = fork();
-	if (pid == -1) {
+	if (-1 == pid) {
 		fprintf(stderr, "can't fork\n");
 		return 1;
-	} else if (pid == 0) {
+	} else if (0 == pid) {
 		execlp("ls", "ls", "-laR", NULL);
 		_exit(128);
 	} else {
 		wait(NULL);
 	}
 	pid = fork();
-	if (pid == -1) {
+	if (-1 == pid) {
 		fprintf(stderr, "can't fork\n");
 		return 1;
-	} else if (pid == 0) {
+	} else if (0 == pid) {
 		execlp("rm", "rm", "-rf", "test_db", NULL);
 		_exit(127);
 	} else {