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shell: mufs: check if the file system has been mounted

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This commit is contained in:
S.J.R. van Schaik 2017-06-16 16:36:15 +02:00
parent 0e9c19c836
commit b0548df204
1 changed files with 41 additions and 1 deletions
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42
source/shell/mufs.c
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@ -42,7 +42,7 @@ static struct cmd mufs_cmds[] = {
};
extern struct flash_dev *flash;
struct mufs *mufs;
struct mufs *mufs = NULL;
static void do_mufs_mount(const char *s)
{
@ -97,6 +97,11 @@ static void do_mufs_format(const char *s)
static void do_mufs_mkdir(const char *s)
{
if (!mufs) {
fprintf(stderr, "error: no file system mounted.\n");
return;
}
if (mufs_mkdir(mufs, s) < 0) {
fprintf(stderr, "error: unable to create the directory\n");
return;
@ -105,6 +110,11 @@ static void do_mufs_mkdir(const char *s)
static void do_mufs_rmdir(const char *s)
{
if (!mufs) {
fprintf(stderr, "error: no file system mounted.\n");
return;
}
if (mufs_rmdir(mufs, s) < 0) {
fprintf(stderr, "error: unable to remove the directory\n");
return;
@ -115,6 +125,11 @@ static void do_mufs_stat(const char *s)
{
struct mufs_stat stat;
if (!mufs) {
fprintf(stderr, "error: no file system mounted.\n");
return;
}
if (mufs_stat(mufs, s, &stat) < 0) {
fprintf(stderr, "error: unable to stat the file\n");
return;
@ -134,6 +149,11 @@ static void do_mufs_cat(const char *s)
char data[256];
struct mufs_file *file;
if (!mufs) {
fprintf(stderr, "error: no file system mounted.\n");
return;
}
if (!(file = mufs_open(mufs, s, MUFS_READ))) {
fprintf(stderr, "error: unable to open the file\n");
return;
@ -151,6 +171,11 @@ static void do_mufs_append(const char *s)
struct mufs_file *file;
char *path, *line;
if (!mufs) {
fprintf(stderr, "error: no file system mounted.\n");
return;
}
if (!(path = malloc(strlen(s) + 2)))
return;
@ -180,6 +205,11 @@ static void do_mufs_mv(const char *s)
{
char *old, *new;
if (!mufs) {
fprintf(stderr, "error: no file system mounted.\n");
return;
}
if (!(old = strdup(s)))
return;
@ -201,6 +231,11 @@ err_free_old:
static void do_mufs_rm(const char *s)
{
if (!mufs) {
fprintf(stderr, "error: no file system mounted.\n");
return;
}
if (mufs_unlink(mufs, s) < 0) {
fprintf(stderr, "error: unable to remove the file\n");
return;
@ -212,6 +247,11 @@ static void do_mufs_ls(const char *s)
struct mufs_dirent ent;
struct mufs_dir *dir;
if (!mufs) {
fprintf(stderr, "error: no file system mounted.\n");
return;
}
if (!(dir = mufs_opendir(mufs, s))) {
fprintf(stderr, "error: unable to open the directory\n");
return;