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nshlib: Enhance nsh to execute the shell script

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and support the interactive shell too

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao
2020-04-18 22:27:10 +08:00
committed by patacongo
parent d307758c3c
commit 3f9302561c
3 changed files with 39 additions and 22 deletions
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47
nshlib/nsh_system.c
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@@ -41,6 +41,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "nsh.h"
@@ -71,30 +72,44 @@
int nsh_system(int argc, char *argv[])
{
/* Expect argc == 2 with argv[1] being the command to execute */
FAR struct console_stdio_s *pstate = nsh_newconsole();
FAR struct nsh_vtbl_s *vtbl;
int ret = EXIT_FAILURE;
if (argc >= 2)
DEBUGASSERT(pstate != NULL);
vtbl = &pstate->cn_vtbl;
if (argc < 2)
{
FAR struct console_stdio_s *pstate = nsh_newconsole();
FAR struct nsh_vtbl_s *vtbl;
/* Execute the interactive shell */
DEBUGASSERT(pstate != NULL);
vtbl = &pstate->cn_vtbl;
ret = nsh_session(pstate, false);
}
else if (strcmp(argv[1], "-h") == 0)
{
ret = nsh_output(vtbl, "Usage: %s [<script-path>|-c <command>]\n",
argv[0]);
}
else if (strcmp(argv[1], "-c") != 0)
{
#if CONFIG_NFILE_STREAMS > 0 && !defined(CONFIG_NSH_DISABLESCRIPT)
/* Execute the shell script */
ret = nsh_script(vtbl, argv[0], argv[1]);
#endif
}
else if (argc >= 3)
{
/* Parse process the command */
nsh_parse(vtbl, argv[1]);
ret = nsh_parse(vtbl, argv[2]);
#if CONFIG_NFILE_STREAMS > 0
fflush(pstate->cn_outstream);
#endif
/* Exit upon return */
nsh_exit(&pstate->cn_vtbl, OK);
return EXIT_SUCCESS;
}
else
{
return EXIT_FAILURE;
}
/* Exit upon return */
nsh_exit(&pstate->cn_vtbl, ret);
return ret;
}