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cmd.exe: Allow special named env vars to be modified.

This commit is contained in:
Jason Edmeades 2007-02-26 23:03:34 +00:00 committed by Alexandre Julliard
parent b5186e17dd
commit 54ba046ad5
1 changed files with 53 additions and 64 deletions
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117
programs/cmd/wcmdmain.c
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@ -304,7 +304,6 @@ int main (int argc, char *argv[])
void WCMD_process_command (char *command)
{
char *cmd, *p, *s, *t;
char temp[MAXSTRING];
int status, i;
DWORD count, creationDisposition;
HANDLE h;
@ -322,12 +321,8 @@ void WCMD_process_command (char *command)
/* Additionally: */
/* Expand the DATE, TIME, CD, RANDOM and ERRORLEVEL special */
/* names allowing environment variable overrides */
/* FIXME: Winnt would replace %1%fred%1 with first parm, then */
/* contents of fred, then the digit 1. Would need to remove */
/* ExpandEnvStrings to achieve this */
/* NOTE: To support the %PATH:xxx% syntax, also need to do */
/* manual expansion of environment variables here */
/* NOTE: To support the %PATH:xxx% syntax, also perform */
/* manual expansion of environment variables here */
p = new_cmd;
while ((p = strchr(p, '%'))) {
@ -356,61 +351,6 @@ void WCMD_process_command (char *command)
strcat (p, s);
free (s);
/* Handle DATE, TIME, ERRORLEVEL and CD replacements allowing */
/* override if existing env var called that name */
} else if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
(p+1), 11, "ERRORLEVEL%", -1) == 2) &&
(GetEnvironmentVariable("ERRORLEVEL", temp, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
sprintf(temp, "%d", errorlevel);
s = strdup (p+12);
strcpy (p, temp);
strcat (p, s);
} else if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
(p+1), 5, "DATE%", -1) == 2) &&
(GetEnvironmentVariable("DATE", temp, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
GetDateFormat(LOCALE_USER_DEFAULT, DATE_SHORTDATE, NULL,
NULL, temp, MAXSTRING);
s = strdup (p+6);
strcpy (p, temp);
strcat (p, s);
} else if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
(p+1), 5, "TIME%", -1) == 2) &&
(GetEnvironmentVariable("TIME", temp, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
GetTimeFormat(LOCALE_USER_DEFAULT, TIME_NOSECONDS, NULL,
NULL, temp, MAXSTRING);
s = strdup (p+6);
strcpy (p, temp);
strcat (p, s);
} else if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
(p+1), 3, "CD%", -1) == 2) &&
(GetEnvironmentVariable("CD", temp, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
GetCurrentDirectory (MAXSTRING, temp);
s = strdup (p+4);
strcpy (p, temp);
strcat (p, s);
} else if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
(p+1), 7, "RANDOM%", -1) == 2) &&
(GetEnvironmentVariable("RANDOM", temp, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
sprintf(temp, "%d", rand() % 32768);
s = strdup (p+8);
strcpy (p, temp);
strcat (p, s);
} else {
p = WCMD_expand_envvar(p);
}
@ -1156,8 +1096,57 @@ static char *WCMD_expand_envvar(char *start) {
}
/* Expand to contents, if unchanged, return */
len = ExpandEnvironmentStrings(thisVar, thisVarContents,
sizeof(thisVarContents));
/* Handle DATE, TIME, ERRORLEVEL and CD replacements allowing */
/* override if existing env var called that name */
if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
thisVar, 12, "%ERRORLEVEL%", -1) == 2) &&
(GetEnvironmentVariable("ERRORLEVEL", thisVarContents, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
sprintf(thisVarContents, "%d", errorlevel);
len = strlen(thisVarContents);
} else if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
thisVar, 6, "%DATE%", -1) == 2) &&
(GetEnvironmentVariable("DATE", thisVarContents, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
GetDateFormat(LOCALE_USER_DEFAULT, DATE_SHORTDATE, NULL,
NULL, thisVarContents, MAXSTRING);
len = strlen(thisVarContents);
} else if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
thisVar, 6, "%TIME%", -1) == 2) &&
(GetEnvironmentVariable("TIME", thisVarContents, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
GetTimeFormat(LOCALE_USER_DEFAULT, TIME_NOSECONDS, NULL,
NULL, thisVarContents, MAXSTRING);
len = strlen(thisVarContents);
} else if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
thisVar, 4, "%CD%", -1) == 2) &&
(GetEnvironmentVariable("CD", thisVarContents, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
GetCurrentDirectory (MAXSTRING, thisVarContents);
len = strlen(thisVarContents);
} else if ((CompareString (LOCALE_USER_DEFAULT,
NORM_IGNORECASE | SORT_STRINGSORT,
thisVar, 8, "%RANDOM%", -1) == 2) &&
(GetEnvironmentVariable("RANDOM", thisVarContents, 1) == 0) &&
(GetLastError() == ERROR_ENVVAR_NOT_FOUND)) {
sprintf(thisVarContents, "%d", rand() % 32768);
len = strlen(thisVarContents);
} else {
len = ExpandEnvironmentStrings(thisVar, thisVarContents,
sizeof(thisVarContents));
}
if (len == 0)
return endOfVar+1;