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234 lines
7.2 KiB
C
234 lines
7.2 KiB
C
/*
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* Windows regedit.exe registry editor implementation.
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*
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* Copyright 2002 Andriy Palamarchuk
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <regedit.h>
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static const char *usage =
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"Usage:\n"
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" regedit filename\n"
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" regedit /E filename [regpath]\n"
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" regedit /D regpath\n"
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"\n"
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"filename - registry file name\n"
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"regpath - name of the registry key\n"
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"\n"
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"When is called without any switches adds contents of the specified\n"
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"registry file to the registry\n"
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"\n"
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"Switches:\n"
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" /E - exports contents of the specified registry key to the specified\n"
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" file. Exports the whole registry if no key is specified.\n"
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" /D - deletes specified registry key\n"
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" /S - silent execution, can be used with any other switch.\n"
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" The only existing mode, exists for compatibility with Windows regedit.\n"
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" /V - advanced mode, can be used with any other switch.\n"
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" Ignored, exists for compatibility with Windows regedit.\n"
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" /L - location of system.dat file. Can be used with any other switch.\n"
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" Ignored. Exists for compatibility with Windows regedit.\n"
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" /R - location of user.dat file. Can be used with any other switch.\n"
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" Ignored. Exists for compatibility with Windows regedit.\n"
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" /? - print this help. Any other switches are ignored.\n"
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" /C - create registry from. Not implemented.\n"
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"\n"
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"The switches are case-insensitive, can be prefixed either by '-' or '/'.\n"
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"This program is command-line compatible with Microsoft Windows\n"
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"regedit.\n";
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typedef enum {
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ACTION_UNDEF, ACTION_ADD, ACTION_EXPORT, ACTION_DELETE
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} REGEDIT_ACTION;
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BOOL PerformRegAction(REGEDIT_ACTION action, LPSTR s);
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/**
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* Process unknown switch.
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*
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* Params:
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* chu - the switch character in upper-case.
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* s - the command line string where s points to the switch character.
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*/
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static void error_unknown_switch(char chu, char *s)
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{
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if (isalpha(chu)) {
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fprintf(stderr,"%s: Undefined switch /%c!\n", getAppName(), chu);
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} else {
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fprintf(stderr,"%s: Alphabetic character is expected after '%c' "
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"in swit ch specification\n", getAppName(), *(s - 1));
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}
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exit(1);
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}
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BOOL ProcessCmdLine(LPSTR lpCmdLine)
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{
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REGEDIT_ACTION action = ACTION_UNDEF;
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LPSTR s = lpCmdLine; /* command line pointer */
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CHAR ch = *s; /* current character */
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setAppName("regedit");
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while (ch && ((ch == '-') || (ch == '/'))) {
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char chu;
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char ch2;
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s++;
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ch = *s;
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ch2 = *(s+1);
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chu = (CHAR) toupper(ch);
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if (!ch2 || isspace(ch2)) {
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if (chu == 'S' || chu == 'V') {
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/* ignore these switches */
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} else {
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switch (chu) {
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case 'D':
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action = ACTION_DELETE;
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break;
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case 'E':
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action = ACTION_EXPORT;
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break;
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case '?':
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fprintf(stderr,usage);
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exit(0);
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break;
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default:
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error_unknown_switch(chu, s);
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break;
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}
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}
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s++;
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} else {
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if (ch2 == ':') {
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switch (chu) {
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case 'L':
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/* fall through */
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case 'R':
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s += 2;
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while (*s && !isspace(*s)) {
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s++;
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}
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break;
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default:
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error_unknown_switch(chu, s);
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break;
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}
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} else {
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/* this is a file name, starting from '/' */
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s--;
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break;
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}
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}
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/* skip spaces to the next parameter */
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ch = *s;
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while (ch && isspace(ch)) {
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s++;
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ch = *s;
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}
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}
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if (*s && action == ACTION_UNDEF)
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action = ACTION_ADD;
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if (action == ACTION_UNDEF)
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return FALSE;
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return PerformRegAction(action, s);
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}
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BOOL PerformRegAction(REGEDIT_ACTION action, LPSTR s)
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{
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switch (action) {
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case ACTION_ADD: {
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CHAR filename[MAX_PATH];
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FILE *reg_file;
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get_file_name(&s, filename);
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if (!filename[0]) {
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fprintf(stderr,"%s: No file name is specified\n", getAppName());
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fprintf(stderr,usage);
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exit(1);
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}
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while(filename[0]) {
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reg_file = fopen(filename, "r");
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if (reg_file) {
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processRegLines(reg_file, doSetValue);
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fclose(reg_file);
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} else {
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perror("");
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fprintf(stderr,"%s: Can't open file \"%s\"\n", getAppName(), filename);
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exit(1);
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}
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get_file_name(&s, filename);
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}
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break;
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}
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case ACTION_DELETE: {
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CHAR reg_key_name[KEY_MAX_LEN];
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get_file_name(&s, reg_key_name);
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if (!reg_key_name[0]) {
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fprintf(stderr,"%s: No registry key is specified for removal\n",
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getAppName());
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fprintf(stderr,usage);
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exit(1);
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}
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delete_registry_key(reg_key_name);
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break;
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}
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case ACTION_EXPORT: {
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CHAR filename[MAX_PATH];
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LPCTSTR pszFilename;
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#ifdef UNICODE
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WCHAR filename_wide[MAX_PATH];
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#endif
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filename[0] = '\0';
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get_file_name(&s, filename);
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if (!filename[0]) {
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fprintf(stderr,"%s: No file name is specified\n", getAppName());
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fprintf(stderr,usage);
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exit(1);
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}
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#ifdef UNICODE
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MultiByteToWideChar(CP_ACP, 0, filename, -1, filename_wide,
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sizeof(filename_wide) / sizeof(filename_wide[0]));
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pszFilename = filename_wide;
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#else
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pszFilename = filename;
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#endif
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if (s[0]) {
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CHAR reg_key_name[KEY_MAX_LEN];
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get_file_name(&s, reg_key_name);
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export_registry_key(pszFilename, reg_key_name);
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} else {
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export_registry_key(pszFilename, NULL);
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}
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break;
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}
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default:
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fprintf(stderr,"%s: Unhandled action!\n", getAppName());
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exit(1);
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break;
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}
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return TRUE;
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}
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