mount opt support add

include/libmu/parse_mount.h

@@ -1,9 +1,52 @@
 #ifndef _PARSE_MOUNT_H
 #define _PARSE_MOUNT_H
+#include <string.h>
 
-unsigned long mu_parse_opts(const char *str) {
-	(void)str;
-	return 0;
+typedef struct {
+	char *opt;
+	char *notopt;
+	char *desc;
+	unsigned int val;
+} MU_MOUNT_OPTS;
+
+#if defined(__BSD__)
+/* Todo */
+#define MS_RDONLY MNT_RDONLY
+#define MS_REMOUNT 0
+#define MS_SYNCHRONOUS MNT_SYNCHRONOUS
+#define MS_NODEV 0
+#endif
+
+MU_MOUNT_OPTS mu_options[] = {
+	{"defaults", NULL,    NULL, 0},
+	{"ro",       "rw",    "Read only / Read and write", MS_RDONLY},
+	{"remount",  NULL,    "Remount a mounted filesystem", MS_REMOUNT},
+	{"sync",     "async", "Writes are [a]synchronous", MS_SYNCHRONOUS},
+	{"nodev",    "dev",   "(Dis)allow use of special device files", MS_NODEV}
+};
+
+unsigned long mu_parse_opts(char *str) {
+	unsigned long opt = 1;
+
+	char *token = strtok(str, ",");
+	while (token != NULL) {
+		for (size_t i = 0; i < sizeof(mu_options) / sizeof(mu_options[0]); i++) {
+			if (mu_options[i].opt && !strcmp(token, mu_options[i].opt)) {
+				opt |= mu_options[i].val;
+				break;
+			}
+
+			if (mu_options[i].notopt && !strcmp(token, mu_options[i].notopt)) {
+				opt &= ~mu_options[i].val;
+				break;
+			}
+		}
+
+		token = strtok(NULL, ",");
+	}
+
+	printf("%lu\n", opt);
+	return opt;
 }
 
 #endif

src/sysutils/mount/mount.c

@@ -45,12 +45,25 @@ void parse_fstab(void) {
 	free(buf);
 }
 
+void print_opts(void) {
+	for (size_t i = 0; i < sizeof(mu_options) / sizeof(mu_options[0]); i++) {
+		printf("\t%s", mu_options[i].opt);
+		if (mu_options[i].notopt != NULL)
+			printf(" / %s", mu_options[i].notopt);
+
+		if (mu_options[i].desc != NULL)
+			printf(" - %s", mu_options[i].desc);
+
+		putchar('\n');
+	}
+}
+
 int main(int argc, char **argv) {
 	char *fs_type = MOUNT_DEF_FS;
 	unsigned long mode = 0;
 
 	int opt;
-	while ((opt = getopt(argc, argv, "t:ao:")) != -1) {
+	while ((opt = getopt(argc, argv, "at:o:")) != -1) {
 		switch (opt) {
 			case 'a':
 				parse_fstab();
@@ -65,7 +78,8 @@ int main(int argc, char **argv) {
 				break;
 
 			default:
-				printf("mount [DEVICE] [NODE]\n\t[-t Fs type (default %s)] [-o Options]\n\t[-a Mount all fs in /etc/fstab]\n\nOptions:\n\tremount - Remount a mounted filesystem\n\tro - Read only\n", MOUNT_DEF_FS);
+				printf("mount [DEVICE] [NODE]\n\t[-t Fs type, default %s] [-o Options]\n\t[-a Mount all fs in /etc/fstab]\n\nOptions:\n", MOUNT_DEF_FS);
+				print_opts();
 				return 0;
 		}
 	}