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cmd: Change command line parsing away from argv/argc.

This commit is contained in:
Jason Edmeades 2012-10-03 00:50:13 +01:00 committed by Alexandre Julliard
parent a2db974d19
commit f252e9dfc8
3 changed files with 76 additions and 138 deletions
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7
programs/cmd/tests/test_builtins.cmd
View File

@ -1861,7 +1861,12 @@ cmd.exe /c " echo passed2 "
echo --- Test 14
cmd.exe /c "dir /ad ..\fooba* /b"
echo --- Test 15
cmd.exe /cecho No whitespace
echo --- Test 16
cmd.exe /c
echo --- Test 17
cmd.exe /c@space@
echo --- Test 18
rem Ensure no interactive prompting when cmd.exe /c or /k
echo file2 > file2
cmd.exe /c copy file1 file2 >nul

22
programs/cmd/tests/test_builtins.cmd.exp
View File

@ -910,23 +910,23 @@ value1
------------ cmd.exe command lines ------------
--- Test 1
Line1
@todo_wine@"Line2"
"Line2"
--- Test 2
@todo_wine@Test quotes "&" work
Test quotes "&" work
--- Test 3
@todo_wine@"&"
"&"
--- Test 4
@todo_wine@"<"
"<"
--- Test 5
@todo_wine@">"
">"
--- Test 6
@todo_wine@"\"
"\"
--- Test 7
@todo_wine@"|"
"|"
--- Test 8
@todo_wine@"`"
"`"
--- Test 9
@todo_wine@"""
"""
--- Test 10
--- Test 11
--- Test 12
@ -936,6 +936,10 @@ passed2@space@
--- Test 14
foobar
--- Test 15
No whitespace
--- Test 16
--- Test 17
--- Test 18
No prompts or I would not get here1
No prompts or I would not get here2
%hello1%

185
programs/cmd/wcmdmain.c
View File

@ -2300,7 +2300,9 @@ void WCMD_free_commands(CMD_LIST *cmds) {
int wmain (int argc, WCHAR *argvW[])
{
int args;
WCHAR *cmd;
WCHAR *cmdLine = NULL;
WCHAR *cmd = NULL;
WCHAR *argPos = NULL;
WCHAR string[1024];
WCHAR envvar[4];
BOOL opt_q;
@ -2318,19 +2320,26 @@ int wmain (int argc, WCHAR *argvW[])
LocalFree(cmd);
cmd = NULL;
args = argc;
/* Can't use argc/argv as it will have stripped quotes from parameters
* meaning cmd.exe /C echo "quoted string" is impossible
*/
cmdLine = GetCommandLineW();
WINE_TRACE("Full commandline '%s'\n", wine_dbgstr_w(cmdLine));
args = 1; /* start at first arg, skipping cmd.exe itself */
opt_c = opt_k = opt_q = opt_s = FALSE;
while (args > 0)
WCMD_parameter(cmdLine, args, &argPos, NULL, TRUE);
while (argPos && argPos[0] != 0x00)
{
WCHAR c;
WINE_TRACE("Command line parm: '%s'\n", wine_dbgstr_w(*argvW));
if ((*argvW)[0]!='/' || (*argvW)[1]=='\0') {
argvW++;
args--;
WINE_TRACE("Command line parm: '%s'\n", wine_dbgstr_w(argPos));
if (argPos[0]!='/' || argPos[1]=='\0') {
args++;
WCMD_parameter(cmdLine, args, &argPos, NULL, TRUE);
continue;
}
c=(*argvW)[1];
c=argPos[1];
if (tolowerW(c)=='c') {
opt_c = TRUE;
} else if (tolowerW(c)=='q') {
@ -2343,19 +2352,20 @@ int wmain (int argc, WCHAR *argvW[])
unicodeOutput = FALSE;
} else if (tolowerW(c)=='u') {
unicodeOutput = TRUE;
} else if (tolowerW(c)=='t' && (*argvW)[2]==':') {
opt_t=strtoulW(&(*argvW)[3], NULL, 16);
} else if (tolowerW(c)=='t' && argPos[2]==':') {
opt_t=strtoulW(&argPos[3], NULL, 16);
} else if (tolowerW(c)=='x' || tolowerW(c)=='y') {
/* Ignored for compatibility with Windows */
}
if ((*argvW)[2]==0) {
argvW++;
args--;
if (argPos[2]==0 || argPos[2]==' ' || argPos[2]=='\t') {
args++;
WCMD_parameter(cmdLine, args, &argPos, NULL, TRUE);
}
else /* handle `cmd /cnotepad.exe` and `cmd /x/c ...` */
{
*argvW+=2;
/* Do not step to next paramater, instead carry on parsing this one */
argPos+=2;
}
if (opt_c || opt_k) /* break out of parsing immediately after c or k */
@ -2371,64 +2381,50 @@ int wmain (int argc, WCHAR *argvW[])
interactive = FALSE;
if (opt_c || opt_k) {
int len,qcount;
WCHAR** arg;
int argsLeft;
WCHAR* p;
int len;
WCHAR *q1 = NULL,*q2 = NULL,*p;
/* Handle very edge case error scenarion, "cmd.exe /c" ie when there are no
* parameters after the /C or /K by pretending there was a single space */
if (argPos == NULL) argPos = (WCHAR *)spaceW;
/* Build the command to execute - It is what is left in argPos */
len = strlenW(argPos);
/* Take a copy */
cmd = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
if (!cmd)
exit(1);
strcpyW(cmd, argPos);
/* opt_s left unflagged if the command starts with and contains exactly
* one quoted string (exactly two quote characters). The quoted string
* must be an executable name that has whitespace and must not have the
* following characters: &<>()@^| */
/* Build the command to execute */
len = 0;
qcount = 0;
argsLeft = args;
for (arg = argvW; argsLeft>0; arg++,argsLeft--)
{
BOOL has_space = FALSE;
int bcount;
WCHAR* a;
bcount=0;
a=*arg;
if( !*a ) has_space = TRUE;
while (*a!='\0') {
if (*a=='\\') {
bcount++;
} else {
if (*a==' ' || *a=='\t') {
has_space = TRUE;
} else if (*a=='"') {
/* doubling of '\' preceding a '"',
* plus escaping of said '"'
*/
len+=2*bcount+1;
qcount++;
}
bcount=0;
}
a++;
}
len+=(a-*arg) + 1; /* for the separating space */
if (has_space)
{
len+=2; /* for the quotes */
qcount+=2;
}
if (!opt_s) {
/* 1. Confirm there is at least one quote */
q1 = strchrW(argPos, '"');
if (!q1) opt_s=1;
}
/* If there is not exactly 2 quote characters, then /S (old behaviour) is enabled */
if (qcount!=2)
opt_s = TRUE;
if (!opt_s) {
/* 2. Confirm there is a second quote */
q2 = strchrW(q1+1, '"');
if (!q2) opt_s=1;
}
/* check argvW[0] for a space and invalid characters. There must not be any invalid
* characters, but there must be one or more whitespace */
if (!opt_s) {
/* 3. Ensure there are no more quotes */
if (strchrW(q2+1, '"')) opt_s=1;
}
/* check first parameter for a space and invalid characters. There must not be any
* invalid characters, but there must be one or more whitespace */
if (!opt_s) {
opt_s = TRUE;
p=*argvW;
while (*p!='\0') {
p=q1;
while (p!=q2) {
if (*p=='&' || *p=='<' || *p=='>' || *p=='(' || *p==')'
|| *p=='@' || *p=='^' || *p=='|') {
opt_s = TRUE;
@ -2440,73 +2436,6 @@ int wmain (int argc, WCHAR *argvW[])
}
}
cmd = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
if (!cmd)
exit(1);
p = cmd;
argsLeft = args;
for (arg = argvW; argsLeft>0; arg++,argsLeft--)
{
BOOL has_space = FALSE, has_quote = FALSE;
WCHAR* a;
/* Check for quotes and spaces in this argument */
a=*arg;
if( !*a ) has_space = TRUE;
while (*a!='\0') {
if (*a==' ' || *a=='\t') {
has_space = TRUE;
if (has_quote)
break;
} else if (*a=='"') {
has_quote = TRUE;
if (has_space)
break;
}
a++;
}
/* Now transfer it to the command line */
if (has_space)
*p++='"';
if (has_quote) {
int bcount;
WCHAR* a;
bcount=0;
a=*arg;
while (*a!='\0') {
if (*a=='\\') {
*p++=*a;
bcount++;
} else {
if (*a=='"') {
int i;
/* Double all the '\\' preceding this '"', plus one */
for (i=0;i<=bcount;i++)
*p++='\\';
*p++='"';
} else {
*p++=*a;
}
bcount=0;
}
a++;
}
} else {
strcpyW(p,*arg);
p+=strlenW(*arg);
}
if (has_space)
*p++='"';
*p++=' ';
}
if (p > cmd)
p--; /* remove last space */
*p = '\0';
WINE_TRACE("/c command line: '%s'\n", wine_dbgstr_w(cmd));
/* Finally, we only stay in new mode IF the first parameter is quoted and