/* WARNING: This file was generated by dkct. Changes you make here will be lost if dkct is run again! You should modify the original source and run dkct on it. Original source: dkwt-env.ctr */ /* Copyright (C) 2014-2017, Dirk Krause Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above opyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the author nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @file dkwt-env.c The dkwt-env module. */ #line 10 "dkwt-env.ctr" #include "dk3all.h" #include "dkt.h" #include "dkwt.h" #include "dk3wreg.h" #line 19 "dkwt-env.ctr" /** @defgroup dkwt_env_cmd_types Commands for dkwt env. */ /**@{*/ /** Set or show variable. */ #define DKWT_ENV_CMD_NORMAL 0 /** Unset variable (remove registry entry). */ #define DKWT_ENV_CMD_UNSET 1 /** Insert directory at start of value if not yet present. */ #define DKWT_ENV_CMD_INSERT 2 /** Append directory at end of value if not yet present. */ #define DKWT_ENV_CMD_APPEND 3 /** Delete directory from value if present. */ #define DKWT_ENV_CMD_DELETE 4 /** Illegal options combination found. */ #define DKWT_ENV_CMD_ERROR 5 /**@}*/ /** Job structure for dkwt env. */ typedef struct { dk3_app_t *app; /**< Application structure. */ dkChar const * const *msg; /**< Localized message texts. */ dkChar const * const *kwnl; /**< Keywords, not localized. */ dkChar const *name; /**< Environment variable name. */ dkChar const *value; /**< Environment variable value. */ dk3_option_set_t *opt; /**< Options set. */ int exv; /**< Exit value. */ int cmd; /**< Command to execute. */ int sys; /**< Flag: Dealing with system variables. */ int exp; /**< Flag: Use REG_EXPAND_SZ for new entry. */ } DKWT_ENV_J; /** Keywords used by the module. */ dkChar const * const dkwt_env_kw[] = { /* 0 */ dkT(" "), /* 1 */ dkT("SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Environment"), /* 2 */ dkT("Environment"), /* 3 */ dkT(";"), NULL #line 91 "dkwt-env.ctr" }; /** Options allowed for dkwt env. */ static dk3_option_t const dkwt_env_options[] = { { dkT('s'), dkT("system"), 0 }, { dkT('u'), dkT("unset"), 0 }, { dkT('i'), dkT("insert"), 0 }, { dkT('a'), dkT("append"), 0 }, { dkT('d'), dkT("delete"), 0 }, { dkT('e'), dkT("expand"), 0 } }; /** Number of elements in dkwt_env_options array. */ static size_t const dkwt_env_szoptions = sizeof(dkwt_env_options)/sizeof(dk3_option_t); /** Initialize job structure. @param j Job structure to initialize. */ static void dkwt_env_job_init(DKWT_ENV_J *j) { j->app = NULL; j->msg = NULL; j->kwnl = NULL; j->opt = NULL; j->name = NULL; j->value = NULL; j->exv = DKT_RESULT_ERR_UNSPECIFIC; j->cmd = DKWT_ENV_CMD_NORMAL; j->sys = 0; j->exp = 0; } /** Clean up job structure after processing. @param j Job structure to clean up. */ static void dkwt_env_job_cleanup(DKWT_ENV_J *j) { if (j->value) { dk3_delete(j->value); } j->value = NULL; if (j->opt) { dk3opt_close(j->opt); } j->opt = NULL; } /** Process command line arguments. @param j Job structure. @return 1 on success, 0 on error. */ static int dkwt_env_process_args(DKWT_ENV_J *j) { int back = 0; int xargc; dkChar const * const *xargv; xargc = dk3app_get_argc(j->app); xargv = dk3app_get_argv(j->app); if (1 < xargc) { xargv++; xargv++; xargc--; xargc--; j->opt = dk3opt_open_app( dkwt_env_options, dkwt_env_szoptions, dkT('\0'), NULL, xargc, xargv, j->app ); if (j->opt) { if (0 == dk3opt_get_error_code(j->opt)) { back = 1; if (dk3opt_is_set(j->opt, dkT('s'))) { j->sys = 1; } if (dk3opt_is_set(j->opt, dkT('e'))) { j->exp = 1; } if (dk3opt_is_set(j->opt, dkT('u'))) { j->cmd = DKWT_ENV_CMD_UNSET; } if (dk3opt_is_set(j->opt, dkT('i'))) { if (j->cmd) { j->cmd = DKWT_ENV_CMD_ERROR; back = 0; /* ERROR: -u -i -a -d are mutual exclusive */ dk3app_log_1(j->app, DK3_LL_ERROR, j->msg, 142); } else { j->cmd = DKWT_ENV_CMD_INSERT; } } if (dk3opt_is_set(j->opt, dkT('a'))) { if (j->cmd) { j->cmd = DKWT_ENV_CMD_ERROR; back = 0; /* ERROR: Mutual exclusive */ dk3app_log_1(j->app, DK3_LL_ERROR, j->msg, 142); } else { j->cmd = DKWT_ENV_CMD_APPEND; } } if (dk3opt_is_set(j->opt, dkT('d'))) { if (j->cmd) { j->cmd = DKWT_ENV_CMD_ERROR, back = 0; /* ERROR: Mutual exlusive */ dk3app_log_1(j->app, DK3_LL_ERROR, j->msg, 142); } else { j->cmd = DKWT_ENV_CMD_DELETE; } } if (back) { if (0 >= dk3opt_get_num_args(j->opt)) { j->cmd = DKWT_ENV_CMD_ERROR; back = 0; /* ERROR: At least one argument required */ dk3app_log_1(j->app, DK3_LL_ERROR, j->msg, 143); } else { j->name = dk3opt_get_arg(j->opt, 0); if (!(j->name)) { j->cmd = DKWT_ENV_CMD_ERROR; back = 0; #line 226 "dkwt-env.ctr" } } } } } } return back; } /** Check whether an environment variable value contains a directory. @param valptr String to check for a directory name. @param dir Directory name to search for. @return 1 on success (directory found), 0 otherwise. */ static int dkwt_env_value_contains_dir(dkChar *valptr, dkChar const *dir) { dkChar *pc; dkChar *pn; int back = 0; pc = valptr; while ((0 == back) && (pc)) { pn = dk3str_chr(pc, dkT(';')); if (pn) { *(pn++) = dkT('\0'); } if (0 == dk3str_fncmp(pc, dir)) { back = 1; } pc = pn; } return back; } /** Process the request. @param j Job structure containing configuration. */ static void dkwt_env_do_processing(DKWT_ENV_J *j) { dkChar *b1 = NULL; /* Original registry value */ dkChar *b2 = NULL; /* Second buffer */ dkChar *pc; /* Current part */ dkChar *pn; /* Next part */ DWORD_PTR dwrv = (DWORD)0UL; /* Return value for message */ DWORD dwtf = REG_SZ; /* Type found */ HKEY hk = (HKEY)0; /* Registry key */ size_t lgt; /* Length */ int fmod = 0; /* Flag: Modification */ int res = 0; /* Registry operation result */ int wre = 0; /* Write expanded */ int hco = 0; /* Flag: Contents in out buf */ switch (j->cmd) { case DKWT_ENV_CMD_NORMAL: case DKWT_ENV_CMD_UNSET: case DKWT_ENV_CMD_INSERT: case DKWT_ENV_CMD_APPEND: case DKWT_ENV_CMD_DELETE: { b1 = dk3_new_app(dkChar, 8192, j->app); if (b1) { if ((DKWT_ENV_CMD_NORMAL == j->cmd) && (!(j->value))) { if (j->sys) { res = dk3wreg_key_open_read( HKEY_LOCAL_MACHINE, dkwt_env_kw[1], &hk, j->app ); } else { res = dk3wreg_key_open_read( HKEY_CURRENT_USER, dkwt_env_kw[2], &hk, j->app ); } } else { if (j->sys) { res = dk3wreg_key_open_modify( HKEY_LOCAL_MACHINE, dkwt_env_kw[1], &hk, j->app ); } else { res = dk3wreg_key_open_modify( HKEY_CURRENT_USER, dkwt_env_kw[2], &hk, j->app ); } } if (res) { switch (j->cmd) { case DKWT_ENV_CMD_NORMAL: { if (j->value) { if (dk3wreg_get_expand_sz(hk, j->name, b1, 8191, &dwtf, NULL)) { if (REG_EXPAND_SZ == dwtf) { wre = 1; } } else { if (j->exp) { wre = 1; } } if (wre) { res = dk3wreg_set_expand_sz(hk, j->name, j->value, j->app); } else { res = dk3wreg_set_sz(hk, j->name, j->value, j->app); } if (res) { fmod = 1; } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } else { if (dk3wreg_get_sz(hk, j->name, b1, 8191, j->app)) { dk3sf_initialize_stdout(); dk3sf_fputs(b1, stdout); dk3sf_fputc(dkT('\n'), stdout); } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } } break; case DKWT_ENV_CMD_UNSET: { if(dk3wreg_entry_delete(hk, j->name, j->app)) { fmod = 1; } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } break; case DKWT_ENV_CMD_INSERT: { if (j->value) { if (dk3wreg_get_expand_sz(hk, j->name, b1, 8191, &dwtf, NULL)) { lgt = dk3str_len(b1) + dk3str_len(j->value) + 2; b2 = dk3_new_app(dkChar, lgt, j->app); if (b2) { dk3str_cpy(b2, b1); if (!(dkwt_env_value_contains_dir(b2, j->value))) { dk3str_cpy(b2, j->value); dk3str_cat(b2, dkwt_env_kw[3]); dk3str_cat(b2, b1); if (REG_EXPAND_SZ == dwtf) { res = dk3wreg_set_expand_sz(hk, j->name, b2, j->app); } else { res = dk3wreg_set_sz(hk, j->name, b2, j->app); } if (res) { fmod = 1; } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } dk3_delete(b2); } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } else { if (j->exp) { res = dk3wreg_set_expand_sz(hk, j->name, j->value, j->app); } else { res = dk3wreg_set_sz(hk, j->name, j->value, j->app); } if (res) { fmod = 1; } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; /* ERROR: Value required! */ dk3app_log_1(j->app, DK3_LL_ERROR, j->msg, 144); } } break; case DKWT_ENV_CMD_APPEND: { if (j->value) { if (dk3wreg_get_expand_sz(hk, j->name, b1, 8191, &dwtf, NULL)) { lgt = dk3str_len(b1) + dk3str_len(j->value) + 2; b2 = dk3_new_app(dkChar, lgt, j->app); if (b2) { dk3str_cpy(b2, b1); if (!(dkwt_env_value_contains_dir(b2, j->value))) { dk3str_cpy(b2, b1); dk3str_cat(b2, dkwt_env_kw[3]); dk3str_cat(b2, j->value); if (REG_EXPAND_SZ == dwtf) { res = dk3wreg_set_expand_sz(hk, j->name, b2, j->app); } else { res = dk3wreg_set_sz(hk, j->name, b2, j->app); } if (res) { fmod = 1; } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } dk3_delete(b2); } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } else { if (j->exp) { res = dk3wreg_set_expand_sz(hk, j->name, j->value, j->app); } else { res = dk3wreg_set_sz(hk, j->name, j->value, j->app); } if (res) { fmod = 1; } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; /* ERROR: Value required! */ dk3app_log_1(j->app, DK3_LL_ERROR, j->msg, 144); } } break; case DKWT_ENV_CMD_DELETE: { if (j->value) { if (dk3wreg_get_expand_sz(hk, j->name, b1, 8191, &dwtf, NULL)) { lgt = 1 + dk3str_len(b1); b2 = dk3_new_app(dkChar, lgt, j->app); if (b2) { b2[0] = dkT('\0'); pc = b1; while (pc) { pn = dk3str_chr(pc, dkT(';')); if (pn) { *(pn++) = dkT('\0'); } if (dk3str_fncmp(pc, j->value)) { if (hco) { dk3str_cat(b2, dkwt_env_kw[3]); dk3str_cat(b2, pc); } else { dk3str_cpy(b2, pc); } hco = 1; } pc = pn; } if (hco) { if (REG_EXPAND_SZ == dwtf) { res = dk3wreg_set_expand_sz(hk, j->name, b2, j->app); } else { res = dk3wreg_set_sz(hk, j->name, b2, j->app); } if (res) { fmod = 1; } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } else { if (dk3wreg_entry_delete(hk, j->name, j->app)) { fmod = 1; } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } dk3_delete(b2); } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; /* ERROR: Value required! */ dk3app_log_1(j->app, DK3_LL_ERROR, j->msg, 144); } } break; } RegCloseKey(hk); } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } dk3_delete(b1); if (fmod) { SendMessageTimeout( HWND_BROADCAST, WM_SETTINGCHANGE, 0, (LPARAM)"Environment", SMTO_ABORTIFHUNG, 5000, &dwrv ); } } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } break; default: { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } break; } } /** Do processing. @param j Job structure containing configuration. */ static void dkwt_env_run(DKWT_ENV_J *j) { dkChar const *p1; /* Part of the name */ dkChar *buffer = NULL; /* Buffer to construct value */ size_t vallgt = 0; /* Value length */ int i = 0; /* Traverse options */ j->exv = DKT_RESULT_OK; /* Find value length. */ vallgt = 0; for (i = 1; i < dk3opt_get_num_args(j->opt); i++) { if (1 < i) { vallgt++; } p1 = dk3opt_get_arg(j->opt, i); if (p1) { vallgt += dk3str_len(p1); } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } if (vallgt) { vallgt++; } /* Create value string. */ if (DKT_RESULT_OK == j->exv) { if (0 < vallgt) { buffer = dk3_new_app(dkChar,vallgt,j->app); if (buffer) { j->value = buffer; buffer[0] = dkT('\0'); for (i = 1; i < dk3opt_get_num_args(j->opt); i++) { p1 = dk3opt_get_arg(j->opt, i); if (1 < i) { dk3str_cat(buffer, dkwt_env_kw[0]); dk3str_cat(buffer, p1); } else { dk3str_cpy(buffer, p1); } } } else { j->exv = DKT_RESULT_ERR_UNSPECIFIC; } } } /* Process the request. */ if (DKT_RESULT_OK == j->exv) { dkwt_env_do_processing(j); } } int dkwt_env( dk3_app_t *app, dkChar const * const *msg, dkChar const * const *kwnl ) { DKWT_ENV_J job; int back = DKT_RESULT_ERR_UNSPECIFIC; #line 582 "dkwt-env.ctr" dkwt_env_job_init(&job); job.app = app; job.msg = msg; job.kwnl = kwnl; if (dkwt_env_process_args(&job)) { if ((0 != job.sys) && (1 != dkwt_is_admin())) { dk3app_log_1(app, DK3_LL_ERROR, msg, 146); } else { dkwt_env_run(&job); } } back = job.exv; dkwt_env_job_cleanup(&job); #line 594 "dkwt-env.ctr" return back; }