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/*
* WCMD - Wine-compatible command line interface - batch interface.
*
* (C) 1999 D A Pickles
*
*/
#include "wcmd.h"
void WCMD_batch_command (char *line);
extern char nyi[];
extern char newline[];
extern char version_string[];
extern int echo_mode;
extern char quals[MAX_PATH], param1[MAX_PATH], param2[MAX_PATH];
extern BATCH_CONTEXT *context;
/****************************************************************************
* WCMD_batch
*
* Open and execute a batch file.
* On entry *command includes the complete command line beginning with the name
* of the batch file (if a CALL command was entered the CALL has been removed).
* *file is the name of the file, which might not exist and may not have the
* .BAT suffix on. Called is 1 for a CALL, 0 otherwise.
*
* We need to handle recursion correctly, since one batch program might call another.
* So parameters for this batch file are held in a BATCH_CONTEXT structure.
*/
void WCMD_batch (char *file, char *command, int called) {
HANDLE h;
char string[MAX_PATH];
BATCH_CONTEXT *prev_context;
strcpy (string, file);
CharLower (string);
if (strstr (string, ".bat") == NULL) strcat (string, ".bat");
h = CreateFile (string, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (h == INVALID_HANDLE_VALUE) {
WCMD_output ("File %s not found\n", string);
return;
}
/*
* Create a context structure for this batch file.
*/
prev_context = context;
context = (BATCH_CONTEXT *)LocalAlloc (LMEM_FIXED, sizeof (BATCH_CONTEXT));
context -> h = h;
context -> command = command;
context -> shift_count = 0;
context -> prev_context = prev_context;
/*
* Work through the file line by line. Specific batch commands are processed here,
* the rest are handled by the main command processor.
*/
while (WCMD_fgets (string, sizeof(string), h)) {
if (string[0] != ':') { /* Skip over labels */
WCMD_batch_command (string);
}
}
CloseHandle (h);
/*
* If invoked by a CALL, we return to the context of our caller. Otherwise return
* to the caller's caller.
*/
LocalFree ((HANDLE)context);
if ((prev_context != NULL) && (!called)) {
CloseHandle (prev_context -> h);
context = prev_context -> prev_context;
LocalFree ((HANDLE)prev_context);
}
else {
context = prev_context;
}
}
/****************************************************************************
* WCMD_batch_command
*
* Execute one line from a batch file, expanding parameters.
*/
void WCMD_batch_command (char *line) {
DWORD status;
char cmd[1024];
char *p, *s, *t;
int i;
if (echo_mode && (line[0] != '@')) WCMD_output ("%s", line);
status = ExpandEnvironmentStrings (line, cmd, sizeof(cmd));
if (!status) {
WCMD_print_error ();
return;
}
p = cmd;
while ((p = strchr(p, '%'))) {
i = *(p+1) - '0';
if ((i >= 0) && (i <= 9)) {
s = strdup (p+2);
t = WCMD_parameter (context -> command, i + context -> shift_count, NULL);
strcpy (p, t);
strcat (p, s);
free (s);
}
}
WCMD_process_command (cmd);
}
/*******************************************************************
* WCMD_parameter - extract a parameter from a command line.
*
* Returns the 'n'th space-delimited parameter on the command line (zero-based).
* Parameter is in static storage overwritten on the next call.
* Parameters in quotes (and brackets) are handled.
* Also returns a pointer to the location of the parameter in the command line.
*/
char *WCMD_parameter (char *s, int n, char **where) {
int i = 0;
static char param[MAX_PATH];
char *p;
p = param;
while (TRUE) {
switch (*s) {
case ' ':
s++;
break;
case '"':
if (where != NULL) *where = s;
s++;
while ((*s != '\0') && (*s != '"')) {
*p++ = *s++;
}
if (i == n) {
*p = '\0';
return param;
}
if (*s == '"') s++;
param[0] = '\0';
i++;
p = param;
break;
case '(':
if (where != NULL) *where = s;
s++;
while ((*s != '\0') && (*s != ')')) {
*p++ = *s++;
}
if (i == n) {
*p = '\0';
return param;
}
if (*s == ')') s++;
param[0] = '\0';
i++;
p = param;
break;
case '\0':
return param;
default:
if (where != NULL) *where = s;
while ((*s != '\0') && (*s != ' ')) {
*p++ = *s++;
}
if (i == n) {
*p = '\0';
return param;
}
param[0] = '\0';
i++;
p = param;
}
}
}
/****************************************************************************
* WCMD_fgets
*
* Get one line from a batch file. We can't use the native f* functions because
* of the filename syntax differences between DOS and Unix. Also need to lose
* the LF (or CRLF) from the line.
*/
char *WCMD_fgets (char *s, int n, HANDLE h) {
DWORD bytes;
BOOL status;
char *p;
p = s;
do {
status = ReadFile (h, s, 1, &bytes, NULL);
if ((status == 0) || ((bytes == 0) && (s == p))) return NULL;
if (*s == '\n') bytes = 0;
else if (*s != '\r') {
s++;
n--;
}
*s = '\0';
} while ((bytes == 1) && (n > 1));
return p;
}
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