| 0,0 → 1,106 |
|---|
| /* This file is part of the SvarCOM project and is published under the terms |
| * of the MIT license. |
| * |
| * Copyright (C) 2021-2022 Mateusz Viste |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| */ |
| |
| /* |
| * set [varname[=value]] |
| * |
| * value cannot contain any '=' character, but it can contain spaces |
| * varname can also contain spaces |
| */ |
| |
| |
| static enum cmd_result cmd_set(struct cmd_funcparam *p) { |
| char far *env = MK_FP(p->env_seg, 0); |
| char *buff = p->BUFFER; |
| |
| if (cmd_ishlp(p)) { |
| nls_outputnl(23,0); /* "Displays, sets, or removes DOS environment variables"); */ |
| outputnl(""); |
| nls_outputnl(23,1); /* "SET [variable=[string]]" */ |
| outputnl(""); |
| nls_outputnl(23,2); /* "variable Specifies the environment-variable name" */ |
| nls_outputnl(23,3); /* "string Specifies a series of characters to assign to the variable" */ |
| outputnl(""); |
| nls_outputnl(23,4); /* "Type SET without parameters to display the current environment variables." */ |
| return(CMD_OK); |
| } |
| |
| /* no arguments - display content */ |
| if (p->argc == 0) { |
| while (*env != 0) { |
| unsigned short i; |
| /* copy string to local buff for display */ |
| for (i = 0;; i++) { |
| buff[i] = *env; |
| env++; |
| if (buff[i] == 0) break; |
| } |
| outputnl(buff); |
| } |
| } else { /* set variable (do not rely on argv, SET has its own rules...) */ |
| const char far *ptr; |
| unsigned short i; |
| |
| /* locate the first space (note that cmdline separators should be sanitized |
| * to space only by now) */ |
| for (ptr = p->cmdline; *ptr != ' '; ptr++); |
| |
| /* now locate the first non-space: that's where the variable name begins */ |
| for (; *ptr == ' '; ptr++); |
| |
| /* copy variable name to buff */ |
| i = 0; |
| for (; *ptr != '='; ptr++) { |
| if (*ptr == 0) goto syntax_err; |
| buff[i++] = *ptr; |
| } |
| |
| /* make variable name all caps (country-dependend) */ |
| buff[i] = 0; |
| nls_strtoup(buff); |
| |
| /* copy value now */ |
| while (*ptr != 0) { |
| buff[i++] = *ptr; |
| ptr++; |
| } |
| |
| /* terminate buff */ |
| buff[i] = 0; |
| |
| /* commit variable to environment */ |
| i = env_setvar(p->env_seg, buff); |
| if (i == ENV_INVSYNT) goto syntax_err; |
| if (i == ENV_NOTENOM) { |
| nls_outputnl(23,5); /* "Not enough available space within the environment block" */ |
| return(CMD_FAIL); |
| } |
| } |
| return(CMD_OK); |
| |
| syntax_err: |
| |
| nls_outputnl(0,1); /* "Invalid syntax" */ |
| return(CMD_FAIL); |
| } |