zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/app/e2fsprogs/e2fsprogs-1.42.9/lib/ss/execute_cmd.c b/ap/app/e2fsprogs/e2fsprogs-1.42.9/lib/ss/execute_cmd.c
new file mode 100644
index 0000000..d443a46
--- /dev/null
+++ b/ap/app/e2fsprogs/e2fsprogs-1.42.9/lib/ss/execute_cmd.c
@@ -0,0 +1,229 @@
+/*
+ * Copyright 1987, 1988, 1989 by Massachusetts Institute of Technology
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose is hereby granted, provided that
+ * the names of M.I.T. and the M.I.T. S.I.P.B. not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. M.I.T. and the
+ * M.I.T. S.I.P.B. make no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without
+ * express or implied warranty.
+ */
+
+#include "config.h"
+#ifdef HAS_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#else
+extern int errno;
+#endif
+#include "ss_internal.h"
+#include <stdio.h>
+
+static int check_request_table PROTOTYPE((ss_request_table *rqtbl, int argc,
+ char *argv[], int sci_idx));
+static int really_execute_command PROTOTYPE((int sci_idx, int argc,
+ char **argv[]));
+
+/*
+ * get_request(tbl, idx)
+ *
+ * Function:
+ * Gets the idx'th request from the request table pointed to
+ * by tbl.
+ * Arguments:
+ * tbl (ss_request_table *)
+ * pointer to request table
+ * idx (int)
+ * index into table
+ * Returns:
+ * (ss_request_entry *)
+ * pointer to request table entry
+ * Notes:
+ * Has been replaced by a macro.
+ */
+
+#ifdef __SABER__
+/* sigh. saber won't deal with pointer-to-const-struct */
+static struct _ss_request_entry * get_request (tbl, idx)
+ ss_request_table * tbl;
+ int idx;
+{
+ struct _ss_request_table *tbl1 = (struct _ss_request_table *) tbl;
+ struct _ss_request_entry *e = (struct _ss_request_entry *) tbl1->requests;
+ return e + idx;
+}
+#else
+#define get_request(tbl,idx) ((tbl) -> requests + (idx))
+#endif
+
+/*
+ * check_request_table(rqtbl, argc, argv, sci_idx)
+ *
+ * Function:
+ * If the command string in argv[0] is in the request table, execute
+ * the commands and return error code 0. Otherwise, return error
+ * code ss_et_command_not_found.
+ * Arguments:
+ * rqtbl (ss_request_table *)
+ * pointer to request table
+ * argc (int)
+ * number of elements in argv[]
+ * argv (char *[])
+ * argument string array
+ * sci_idx (int)
+ * ss-internal index for subsystem control info structure
+ * Returns:
+ * (int)
+ * zero if command found, ss_et_command_not_found otherwise
+ * Notes:
+ */
+
+static int check_request_table(register ss_request_table *rqtbl, int argc,
+ char *argv[], int sci_idx)
+{
+#ifdef __SABER__
+ struct _ss_request_entry *request;
+#else
+ register ss_request_entry *request;
+#endif
+ register ss_data *info;
+ register char const * const * name;
+ char *string = argv[0];
+ int i;
+
+ info = ss_info(sci_idx);
+ info->argc = argc;
+ info->argv = argv;
+ for (i = 0; (request = get_request(rqtbl, i))->command_names; i++) {
+ for (name = request->command_names; *name; name++)
+ if (!strcmp(*name, string)) {
+ info->current_request = request->command_names[0];
+ (request->function)(argc, (const char *const *) argv,
+ sci_idx,info->info_ptr);
+ info->current_request = (char *)NULL;
+ return(0);
+ }
+ }
+ return(SS_ET_COMMAND_NOT_FOUND);
+}
+
+/*
+ * really_execute_command(sci_idx, argc, argv)
+ *
+ * Function:
+ * Fills in the argc, argv values in the subsystem entry and
+ * call the appropriate routine.
+ * Arguments:
+ * sci_idx (int)
+ * ss-internal index for subsystem control info structure
+ * argc (int)
+ * number of arguments in argument list
+ * argv (char **[])
+ * pointer to parsed argument list (may be reallocated
+ * on abbrev expansion)
+ *
+ * Returns:
+ * (int)
+ * Zero if successful, ss_et_command_not_found otherwise.
+ * Notes:
+ */
+
+static int really_execute_command(int sci_idx, int argc, char **argv[])
+{
+ register ss_request_table **rqtbl;
+ register ss_data *info;
+
+ info = ss_info(sci_idx);
+
+ for (rqtbl = info->rqt_tables; *rqtbl; rqtbl++) {
+ if (check_request_table (*rqtbl, argc, *argv, sci_idx) == 0)
+ return(0);
+ }
+ return(SS_ET_COMMAND_NOT_FOUND);
+}
+
+/*
+ * ss_execute_command(sci_idx, argv)
+ *
+ * Function:
+ * Executes a parsed command list within the subsystem.
+ * Arguments:
+ * sci_idx (int)
+ * ss-internal index for subsystem control info structure
+ * argv (char *[])
+ * parsed argument list
+ * Returns:
+ * (int)
+ * Zero if successful, ss_et_command_not_found otherwise.
+ * Notes:
+ */
+
+int ss_execute_command(int sci_idx, register char *argv[])
+{
+ register int i, argc;
+ char **argp;
+
+ argc = 0;
+ for (argp = argv; *argp; argp++)
+ argc++;
+ argp = (char **)malloc((argc+1)*sizeof(char *));
+ for (i = 0; i <= argc; i++)
+ argp[i] = argv[i];
+ i = really_execute_command(sci_idx, argc, &argp);
+ free(argp);
+ return(i);
+}
+
+/*
+ * ss_execute_line(sci_idx, line_ptr)
+ *
+ * Function:
+ * Parses and executes a command line within a subsystem.
+ * Arguments:
+ * sci_idx (int)
+ * ss-internal index for subsystem control info structure
+ * line_ptr (char *)
+ * Pointer to command line to be parsed.
+ * Returns:
+ * (int)
+ * Error code.
+ * Notes:
+ */
+
+int ss_execute_line(int sci_idx, char *line_ptr)
+{
+ char **argv;
+ int argc, ret;
+
+ /* flush leading whitespace */
+ while (line_ptr[0] == ' ' || line_ptr[0] == '\t')
+ line_ptr++;
+
+ /* check if it should be sent to operating system for execution */
+ if (*line_ptr == '!') {
+ if (ss_info(sci_idx)->flags.escape_disabled)
+ return SS_ET_ESCAPE_DISABLED;
+ else {
+ line_ptr++;
+ return (system(line_ptr) < 0) ? errno : 0;
+ }
+ }
+
+ /* parse it */
+ argv = ss_parse(sci_idx, line_ptr, &argc);
+ if (argc == 0) {
+ free(argv);
+ return 0;
+ }
+
+ /* look it up in the request tables, execute if found */
+ ret = really_execute_command (sci_idx, argc, &argv);
+
+ free(argv);
+
+ return(ret);
+}