* MA 02111-1307 USA
*/
+#include <errno.h>
#include <fcntl.h>
+#include <getopt.h>
#include <stdlib.h>
+#include <termios.h>
+#include <time.h>
#include <unistd.h>
-#include <sys/types.h>
+#include <sys/mman.h>
#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <linux/types.h>
+#include <asm/getopt.h>
+#include <asm/sections.h>
+#include <asm/state.h>
#include <os.h>
/* Operating System Interface */
return write(fd, buf, count);
}
-int os_open(const char *pathname, int flags)
+off_t os_lseek(int fd, off_t offset, int whence)
+{
+ if (whence == OS_SEEK_SET)
+ whence = SEEK_SET;
+ else if (whence == OS_SEEK_CUR)
+ whence = SEEK_CUR;
+ else if (whence == OS_SEEK_END)
+ whence = SEEK_END;
+ else
+ os_exit(1);
+ return lseek(fd, offset, whence);
+}
+
+int os_open(const char *pathname, int os_flags)
{
- return open(pathname, flags);
+ int flags;
+
+ switch (os_flags & OS_O_MASK) {
+ case OS_O_RDONLY:
+ default:
+ flags = O_RDONLY;
+ break;
+
+ case OS_O_WRONLY:
+ flags = O_WRONLY;
+ break;
+
+ case OS_O_RDWR:
+ flags = O_RDWR;
+ break;
+ }
+
+ if (os_flags & OS_O_CREAT)
+ flags |= O_CREAT;
+
+ return open(pathname, flags, 0777);
}
int os_close(int fd)
{
exit(exit_code);
}
+
+/* Restore tty state when we exit */
+static struct termios orig_term;
+
+static void os_fd_restore(void)
+{
+ tcsetattr(0, TCSANOW, &orig_term);
+}
+
+/* Put tty into raw mode so <tab> and <ctrl+c> work */
+void os_tty_raw(int fd)
+{
+ static int setup = 0;
+ struct termios term;
+
+ if (setup)
+ return;
+ setup = 1;
+
+ /* If not a tty, don't complain */
+ if (tcgetattr(fd, &orig_term))
+ return;
+
+ term = orig_term;
+ term.c_iflag = IGNBRK | IGNPAR;
+ term.c_oflag = OPOST | ONLCR;
+ term.c_cflag = CS8 | CREAD | CLOCAL;
+ term.c_lflag = 0;
+ if (tcsetattr(fd, TCSANOW, &term))
+ return;
+
+ atexit(os_fd_restore);
+}
+
+void *os_malloc(size_t length)
+{
+ return mmap(NULL, length, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+}
+
+void os_usleep(unsigned long usec)
+{
+ usleep(usec);
+}
+
+u64 os_get_nsec(void)
+{
+#if defined(CLOCK_MONOTONIC) && defined(_POSIX_MONOTONIC_CLOCK)
+ struct timespec tp;
+ if (EINVAL == clock_gettime(CLOCK_MONOTONIC, &tp)) {
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+ tp.tv_sec = tv.tv_sec;
+ tp.tv_nsec = tv.tv_usec * 1000;
+ }
+ return tp.tv_sec * 1000000000ULL + tp.tv_nsec;
+#else
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return tv.tv_sec * 1000000000ULL + tv.tv_usec * 1000;
+#endif
+}
+
+static char *short_opts;
+static struct option *long_opts;
+
+int os_parse_args(struct sandbox_state *state, int argc, char *argv[])
+{
+ struct sb_cmdline_option **sb_opt = __u_boot_sandbox_option_start;
+ size_t num_options = __u_boot_sandbox_option_count();
+ size_t i;
+
+ int hidden_short_opt;
+ size_t si;
+
+ int c;
+
+ if (short_opts || long_opts)
+ return 1;
+
+ state->argc = argc;
+ state->argv = argv;
+
+ /* dynamically construct the arguments to the system getopt_long */
+ short_opts = os_malloc(sizeof(*short_opts) * num_options * 2 + 1);
+ long_opts = os_malloc(sizeof(*long_opts) * num_options);
+ if (!short_opts || !long_opts)
+ return 1;
+
+ /*
+ * getopt_long requires "val" to be unique (since that is what the
+ * func returns), so generate unique values automatically for flags
+ * that don't have a short option. pick 0x100 as that is above the
+ * single byte range (where ASCII/ISO-XXXX-X charsets live).
+ */
+ hidden_short_opt = 0x100;
+ si = 0;
+ for (i = 0; i < num_options; ++i) {
+ long_opts[i].name = sb_opt[i]->flag;
+ long_opts[i].has_arg = sb_opt[i]->has_arg ?
+ required_argument : no_argument;
+ long_opts[i].flag = NULL;
+
+ if (sb_opt[i]->flag_short) {
+ short_opts[si++] = long_opts[i].val = sb_opt[i]->flag_short;
+ if (long_opts[i].has_arg == required_argument)
+ short_opts[si++] = ':';
+ } else
+ long_opts[i].val = sb_opt[i]->flag_short = hidden_short_opt++;
+ }
+ short_opts[si] = '\0';
+
+ /* we need to handle output ourselves since u-boot provides printf */
+ opterr = 0;
+
+ /*
+ * walk all of the options the user gave us on the command line,
+ * figure out what u-boot option structure they belong to (via
+ * the unique short val key), and call the appropriate callback.
+ */
+ while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
+ for (i = 0; i < num_options; ++i) {
+ if (sb_opt[i]->flag_short == c) {
+ if (sb_opt[i]->callback(state, optarg)) {
+ state->parse_err = sb_opt[i]->flag;
+ return 0;
+ }
+ break;
+ }
+ }
+ if (i == num_options) {
+ /*
+ * store the faulting flag for later display. we have to
+ * store the flag itself as the getopt parsing itself is
+ * tricky: need to handle the following flags (assume all
+ * of the below are unknown):
+ * -a optopt='a' optind=<next>
+ * -abbbb optopt='a' optind=<this>
+ * -aaaaa optopt='a' optind=<this>
+ * --a optopt=0 optind=<this>
+ * as you can see, it is impossible to determine the exact
+ * faulting flag without doing the parsing ourselves, so
+ * we just report the specific flag that failed.
+ */
+ if (optopt) {
+ static char parse_err[3] = { '-', 0, '\0', };
+ parse_err[1] = optopt;
+ state->parse_err = parse_err;
+ } else
+ state->parse_err = argv[optind - 1];
+ break;
+ }
+ }
+
+ return 0;
+}
projects / oweals / u-boot.git / blobdiff