static void printc(char **str, struct vmm_chardev *cdev, char ch)
{
if (str) {
vmm_printchar(str, cdev, ch, TRUE);
} else {
vmm_cputc(cdev, ch);
}
}
void vmm_cputs(struct vmm_chardev *cdev, char *str)
{
if (!str) {
return;
}
while (*str) {
vmm_cputc(cdev, *str);
str++;
}
}
static void printc(char **out, u32 *out_len, struct vmm_chardev *cdev, char ch)
{
if (out) {
if (*out) {
if (out_len && (0 < *out_len)) {
**out = ch;
++(*out);
(*out_len)--;
} else {
**out = ch;
++(*out);
}
}
} else {
vmm_cputc(cdev, ch);
}
}
static int cmd_vserial_recv_putchar(struct cmd_vserial_recvcntx *v, u8 ch)
{
switch (ch) {
case '\r':
vmm_cprintf(v->cdev, "\r[%s] ", v->name);
break;
case '\n':
vmm_cprintf(v->cdev, "\n[%s] ", v->name);
break;
default:
vmm_cputc(v->cdev, ch);
break;
};
return VMM_OK;
}
static int cmd_vfs_cat(struct vmm_chardev *cdev, const char *path)
{
int fd, rc;
u32 i, off, len;
bool found_non_printable;
size_t buf_rd;
char buf[VFS_LOAD_BUF_SZ];
struct stat st;
fd = vfs_open(path, O_RDONLY, 0);
if (fd < 0) {
vmm_cprintf(cdev, "Failed to open %s\n", path);
return fd;
}
rc = vfs_fstat(fd, &st);
if (rc) {
vfs_close(fd);
vmm_cprintf(cdev, "Failed to stat %s\n", path);
return rc;
}
if (!(st.st_mode & S_IFREG)) {
vfs_close(fd);
vmm_cprintf(cdev, "Cannot read %s\n", path);
return VMM_EINVALID;
}
off = 0;
len = st.st_size;
while (len) {
buf_rd = (len < VFS_LOAD_BUF_SZ) ? len : VFS_LOAD_BUF_SZ;
buf_rd = vfs_read(fd, buf, buf_rd);
if (buf_rd < 1) {
break;
}
found_non_printable = FALSE;
for (i = 0; i < buf_rd; i++) {
if (!vmm_isprintable(buf[i])) {
found_non_printable = TRUE;
break;
}
vmm_cputc(cdev, buf[i]);
}
if (found_non_printable) {
vmm_cprintf(cdev, "\nFound non-printable char %d "
"at offset %d\n", buf[i], (off + i));
break;
}
off += buf_rd;
len -= buf_rd;
}
rc = vfs_close(fd);
if (rc) {
vmm_cprintf(cdev, "Failed to close %s\n", path);
return rc;
}
return VMM_OK;
}
void vmm_putc(char ch)
{
vmm_cputc(stdio_ctrl.dev, ch);
}