source: trunk/src/win32k/kKrnlLib/tools/ignore.c

Last change on this file was 8067, checked in by bird, 24 years ago

Copyright.
File size: 5.7 KB
Line 
1/* $Id: ignore.c,v 1.2 2002-03-10 04:56:58 bird Exp $
2 *
3 * Ignores lines matching a certain pattern.
4 *
5 * Copyright (c) 2001-2002 knut st. osmundsen (bird@anduin.net)
6 *
7 * Project Odin Software License can be found in LICENSE.TXT
8 *
9 */
10
11
12/*******************************************************************************
13* Defined Constants And Macros *
14*******************************************************************************/
15#define HF_STDIN 0
16#define HF_STDOUT 1
17#define HF_STDERR 2
18
19
20
21/*******************************************************************************
22* Header Files *
23*******************************************************************************/
24#define INCL_BASE
25#include <os2.h>
26#include <process.h>
27#include <stdio.h>
28#include <stdlib.h>
29#include <string.h>
30
31
32
33/*******************************************************************************
34* Global Variables *
35*******************************************************************************/
36
37
38int main(int argc, char **argv)
39{
40 int rc;
41 int iArgCmd;
42 char szBuffer[4096];
43 int iBuffer;
44 ULONG cchRead;
45 BOOL fIgnore;
46
47 RESULTCODES Res;
48 PID pid;
49 HFILE hStdOut = HF_STDOUT;
50 HFILE hStdErr = HF_STDERR;
51 HFILE hStdOutSave = -1;
52 HFILE hStdErrSave = -1;
53 HPIPE hPipeR = NULLHANDLE;
54 HPIPE hPipeW = NULLHANDLE;
55
56 /*
57 * Find the command. (first argument without dash)
58 */
59 for (iArgCmd = 1; iArgCmd < argc; iArgCmd++)
60 if (argv[iArgCmd][0] != '-')
61 break;
62
63 /*
64 * Fail if no command.
65 */
66 if (iArgCmd >= argc)
67 {
68 fprintf(stderr, "Fatal error: no command given\n");
69 return 8;
70 }
71
72 /*
73 * Redirect.
74 */
75 rc = DosCreatePipe(&hPipeR, &hPipeW, sizeof(szBuffer) - 1);
76 if (rc)
77 {
78 fprintf(stderr, "Internal Error: Failed to create pipe! rc=%d\n", rc);
79 return 8;
80 }
81 DosDupHandle(HF_STDOUT, &hStdOutSave);
82 DosDupHandle(HF_STDERR, &hStdErrSave);
83 DosDupHandle(hPipeW, &hStdOut);
84 DosDupHandle(hPipeW, &hStdErr);
85
86 /*
87 * Star child and restore filehandles.
88 */
89 /*rc = DosExecPgm(szObj, sizeof(szObj), EXEC_ASYNCRESULT,
90 szArg, pJob->JobInfo.szzEnv, &Res, szArg);*/
91 rc = spawnvp(P_NOWAIT, argv[iArgCmd], &argv[iArgCmd]);
92 pid = (PID)rc;
93 DosClose(hStdOut); hStdOut = HF_STDOUT;
94 DosClose(hStdErr); hStdErr = HF_STDERR;
95 DosDupHandle(hStdOutSave, &hStdOut);
96 DosDupHandle(hStdErrSave, &hStdErr);
97 DosClose(hStdOutSave);
98 DosClose(hStdErrSave);
99 DosClose(hPipeW);
100
101 /*
102 * Check for errors.
103 */
104 if ((int)rc < 0)
105 {
106 fprintf(stderr, "Fatal error: Failed to execute command (%s)\n", argv[iArgCmd]);
107 return 8;
108 }
109
110 /*
111 * Read Output.
112 */
113 fIgnore = FALSE;
114 while (( (rc = DosRead(hPipeR, &szBuffer[iBuffer], 256, &cchRead)) == NO_ERROR
115 || rc == ERROR_MORE_DATA
116 )
117 && cchRead != 0
118 )
119 {
120 int i;
121 int iStartLine;
122 ULONG cchWritten;
123 cchRead += iBuffer;
124 szBuffer[cchRead] = '\0';
125
126 /*
127 * Process string.
128 */
129 for (iStartLine = i = 0; i < cchRead; i++)
130 {
131 if (fIgnore)
132 { /* currently in ignore mode */
133 if (szBuffer[i] == '\r')
134 {
135 if (szBuffer[i + 1] == '\n')
136 i++;
137 fIgnore = FALSE;
138 }
139 else if (szBuffer[i] == '\n')
140 fIgnore = FALSE;
141
142 if (!fIgnore)
143 {
144 memmove(&szBuffer[iStartLine], &szBuffer[i + 1], cchRead - i); /* could possibly get away without this move somehow.. not sure if we will gain anything... */
145 cchRead -= i - iStartLine + 1;
146 i = iStartLine - 1;
147 }
148 }
149 else
150 {
151 /* check for end of line */
152 if (szBuffer[i] == '\r' || szBuffer[i] == '\n')
153 {
154 if (szBuffer[i] == '\r' && szBuffer[i + 1] == '\n')
155 i++;
156 iStartLine = i + 1;
157 }
158 else
159 { /* check for ignore pattern */
160 int j;
161 for (j = 1; j < iArgCmd; j++)
162 if (!strnicmp(&argv[j][1], &szBuffer[i], strlen(&argv[j][1])))
163 {
164 fIgnore = TRUE;
165 break;
166 }
167 }
168 }
169 } /* for - scan output */
170
171 /*
172 * Write output.
173 */
174 if (iStartLine > 0)
175 DosWrite(HF_STDOUT, &szBuffer[0], iStartLine, &cchWritten);
176
177 /*
178 * Move last (unfinished) line to start of buffer.
179 */
180 if (iStartLine > 0)
181 memmove(&szBuffer[0], &szBuffer[iStartLine], cchRead - iStartLine + 1);
182 iBuffer = cchRead - iStartLine;
183
184 } /* while - read pipe */
185
186 /* finished reading */
187 DosClose(hPipeR);
188
189 /*
190 * Write remaining part of buffer.
191 */
192 if (!fIgnore && iBuffer > 0)
193 DosWrite(HF_STDOUT, &szBuffer[0], strlen(szBuffer), &cchRead);
194
195 /*
196 * Get result.
197 */
198 DosWaitChild(DCWA_PROCESS, DCWW_WAIT, &Res, &pid, Res.codeTerminate);
199 if (Res.codeTerminate == TC_EXIT)
200 return Res.codeResult;
201 return Res.codeResult != 0 ? Res.codeResult : 8;
202}
203
Note: See TracBrowser for help on using the repository browser.