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apps/nshlib/nsh_parrse.c: Correct some coding standard problems in last PR.

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This commit is contained in:
Gregory Nutt 2019-01-06 10:00:19 -06:00
parent c700bf9739
commit 3257ea42d5
1 changed files with 50 additions and 30 deletions
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80
nshlib/nsh_parse.c
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@ -170,9 +170,9 @@ static void nsh_dequote(FAR char *cmdline);
#endif
static FAR char *nsh_argexpand(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
FAR char **allocation, int* isenvvar);
FAR char **allocation, FAR int *isenvvar);
static FAR char *nsh_argument(FAR struct nsh_vtbl_s *vtbl, char **saveptr,
FAR NSH_MEMLIST_TYPE *memlist, int* isenvvar);
FAR NSH_MEMLIST_TYPE *memlist, FAR int *isenvvar);
#ifndef CONFIG_NSH_DISABLESCRIPT
#ifndef CONFIG_NSH_DISABLE_LOOPS
@ -1122,7 +1122,7 @@ static void nsh_dequote(FAR char *cmdline)
#if defined(CONFIG_NSH_ARGCAT) && defined(HAVE_MEMLIST)
static FAR char *nsh_argexpand(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
FAR char **allocation, int* isenvvar)
FAR char **allocation, FAR int *isenvvar)
{
FAR char *working = cmdline;
#ifdef CONFIG_NSH_QUOTE
@ -1329,9 +1329,10 @@ static FAR char *nsh_argexpand(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
* nsh_envexpand will return the NULL string.
*/
if (isenvvar) {
if (isenvvar != NULL)
{
*isenvvar = 1;
}
}
envstr = nsh_envexpand(vtbl, ptr);
@ -1368,7 +1369,7 @@ static FAR char *nsh_argexpand(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
#else
static FAR char *nsh_argexpand(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
FAR char **allocation, int* isenvvar)
FAR char **allocation, FAR int *isenvvar)
{
FAR char *argument = (FAR char *)g_nullstring;
#ifdef CONFIG_NSH_QUOTE
@ -1418,9 +1419,11 @@ static FAR char *nsh_argexpand(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
if (*cmdline == '$')
{
if (isenvvar) {
if (isenvvar != NULL)
{
*isenvvar = 1;
}
}
argument = nsh_envexpand(vtbl, cmdline + 1);
}
else
@ -1442,7 +1445,7 @@ static FAR char *nsh_argexpand(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
****************************************************************************/
static FAR char *nsh_argument(FAR struct nsh_vtbl_s *vtbl, FAR char **saveptr,
FAR NSH_MEMLIST_TYPE *memlist, int* isenvvar)
FAR NSH_MEMLIST_TYPE *memlist, FAR int *isenvvar)
{
FAR char *pbegin = *saveptr;
FAR char *pend = NULL;
@ -1520,10 +1523,12 @@ static FAR char *nsh_argument(FAR struct nsh_vtbl_s *vtbl, FAR char **saveptr,
pbegin++;
term = "\"";
/* If this is an environment variable in double quotes, we don't want it split into
* multiple arguments. So just invalidate the flag pointer which would otherwise
* communictate such back up the call tree.
/* If this is an environment variable in double quotes, we don't
* want it split into multiple arguments. So just invalidate the
* flag pointer which would otherwise communicate such back up
* the call tree.
*/
isenvvar = NULL;
}
else
@ -1867,7 +1872,7 @@ static int nsh_loop(FAR struct nsh_vtbl_s *vtbl, FAR char **ppcmd,
{
/* Get the cmd following the "do" -- there may or may not be one */
*ppcmd = nsh_argument(vtbl, saveptr, memlist, 0);
*ppcmd = nsh_argument(vtbl, saveptr, memlist, NULL);
/* Verify that "do" is valid in this context */
@ -1887,7 +1892,7 @@ static int nsh_loop(FAR struct nsh_vtbl_s *vtbl, FAR char **ppcmd,
{
/* Get the cmd following the "done" -- there should be one */
*ppcmd = nsh_argument(vtbl, saveptr, memlist, 0);
*ppcmd = nsh_argument(vtbl, saveptr, memlist, NULL);
if (*ppcmd)
{
nsh_error(vtbl, g_fmtarginvalid, "done");
@ -1993,7 +1998,7 @@ static int nsh_itef(FAR struct nsh_vtbl_s *vtbl, FAR char **ppcmd,
{
/* Get the cmd following the if */
*ppcmd = nsh_argument(vtbl, saveptr, memlist, 0);
*ppcmd = nsh_argument(vtbl, saveptr, memlist, NULL);
if (*ppcmd == NULL || **ppcmd == '\0')
{
nsh_error(vtbl, g_fmtarginvalid, "if");
@ -2048,7 +2053,7 @@ static int nsh_itef(FAR struct nsh_vtbl_s *vtbl, FAR char **ppcmd,
{
/* Get the cmd following the "then" -- there may or may not be one */
*ppcmd = nsh_argument(vtbl, saveptr, memlist, 0);
*ppcmd = nsh_argument(vtbl, saveptr, memlist, NULL);
/* Verify that "then" is valid in this context */
@ -2067,7 +2072,7 @@ static int nsh_itef(FAR struct nsh_vtbl_s *vtbl, FAR char **ppcmd,
{
/* Get the cmd following the "else" -- there may or may not be one */
*ppcmd = nsh_argument(vtbl, saveptr, memlist, 0);
*ppcmd = nsh_argument(vtbl, saveptr, memlist, NULL);
/* Verify that "else" is valid in this context */
@ -2086,7 +2091,7 @@ static int nsh_itef(FAR struct nsh_vtbl_s *vtbl, FAR char **ppcmd,
{
/* Get the cmd following the fi -- there should be one */
*ppcmd = nsh_argument(vtbl, saveptr, memlist, 0);
*ppcmd = nsh_argument(vtbl, saveptr, memlist, NULL);
if (*ppcmd)
{
nsh_error(vtbl, g_fmtarginvalid, "fi");
@ -2159,10 +2164,10 @@ static int nsh_nice(FAR struct nsh_vtbl_s *vtbl, FAR char **ppcmd,
/* Get the cmd (or -d option of nice command) */
cmd = nsh_argument(vtbl, saveptr, memlist, 0);
cmd = nsh_argument(vtbl, saveptr, memlist, NULL);
if (cmd && strcmp(cmd, "-d") == 0)
{
FAR char *val = nsh_argument(vtbl, saveptr, memlist, 0);
FAR char *val = nsh_argument(vtbl, saveptr, memlist, NULL);
if (val)
{
char *endptr;
@ -2173,7 +2178,7 @@ static int nsh_nice(FAR struct nsh_vtbl_s *vtbl, FAR char **ppcmd,
nsh_error(vtbl, g_fmtarginvalid, "nice");
return ERROR;
}
cmd = nsh_argument(vtbl, saveptr, memlist, 0);
cmd = nsh_argument(vtbl, saveptr, memlist, NULL);
}
}
@ -2243,7 +2248,7 @@ static int nsh_parse_cmdparm(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
/* Parse out the command at the beginning of the line */
saveptr = cmdline;
cmd = nsh_argument(vtbl, &saveptr, &memlist, 0);
cmd = nsh_argument(vtbl, &saveptr, &memlist, NULL);
/* Check if any command was provided -OR- if command processing is
* currently disabled.
@ -2277,7 +2282,7 @@ static int nsh_parse_cmdparm(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline,
argv[0] = cmd;
for (argc = 1; argc < MAX_ARGV_ENTRIES-1; argc++)
{
argv[argc] = nsh_argument(vtbl, &saveptr, &memlist, 0);
argv[argc] = nsh_argument(vtbl, &saveptr, &memlist, NULL);
if (!argv[argc])
{
break;
@ -2344,7 +2349,7 @@ static int nsh_parse_command(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline)
/* Parse out the command at the beginning of the line */
saveptr = cmdline;
cmd = nsh_argument(vtbl, &saveptr, &memlist, 0);
cmd = nsh_argument(vtbl, &saveptr, &memlist, NULL);
#ifndef CONFIG_NSH_DISABLESCRIPT
#ifndef CONFIG_NSH_DISABLE_LOOPS
@ -2414,8 +2419,7 @@ static int nsh_parse_command(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline)
argv[0] = cmd;
for (argc = 1; argc < MAX_ARGV_ENTRIES-1; argc++)
{
int isenvvar = 0; /* flag for if an enviroment variable gets expanded */
int isenvvar = 0; /* flag for if an environment variable gets expanded */
argv[argc] = nsh_argument(vtbl, &saveptr, &memlist, &isenvvar);
@ -2424,40 +2428,56 @@ static int nsh_parse_command(FAR struct nsh_vtbl_s *vtbl, FAR char *cmdline)
break;
}
if (isenvvar)
if (isenvvar != 0)
{
while (argc < MAX_ARGV_ENTRIES-1)
{
FAR char *pbegin = argv[argc];
/* Find the end of the current token */
for (; *pbegin && !strchr(g_token_separator, *pbegin); pbegin++);
/* If end of string, we've processed the last token and we're done */
for (; *pbegin && !strchr(g_token_separator, *pbegin);
pbegin++)
{
}
/* If end of string, we've processed the last token and we're
* done.
*/
if ('\0' == *pbegin)
{
break;
}
/* Terminate the token to complete the argv variable */
*pbegin = '\0';
/* We've inserted an extra parameter, so bump the count */
argc++;
/* Move to the next character in the string of tokens */
pbegin++;
/* Throw away any extra separator chars between tokens */
for (; *pbegin && strchr(g_token_separator, *pbegin) != NULL; pbegin++);
for (; *pbegin && strchr(g_token_separator, *pbegin) != NULL;
pbegin++)
{
}
/* Prepare to loop again on the next argument token */
argv[argc] = pbegin;
}
}
}
/* Last argument vector must be empty */
argv[argc] = NULL;
/* Check if the command should run in background */