WebSVN – SvarDOS – Diff – /svarcom/trunk/cmd/path.c


/* 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.
 */
 
/*
 * path
 *
 * Displays or sets a search path for executable files.
 */
 
static enum cmd_result cmd_path(struct cmd_funcparam *p) {
  char *buff = p->BUFFER;
 
  /* help screen (/?) */
  if (cmd_ishlp(p)) {
    nls_outputnl(27,0); /* "Displays or sets a search path for executable files." */
    outputnl("");
    nls_outputnl(27,1); /* "PATH [[drive:]path[;...]]" */
    outputnl("PATH ;");
    outputnl("");
    nls_outputnl(27,2); /* "Type PATH ; to clear all search-path settings and (...)" */
    outputnl("");
    nls_outputnl(27,3); /* "Type PATH without parameters to display the current path." */
    return(CMD_OK);
  }
 
  /* no parameter - display current path */
  if (p->argc == 0) {
    char far *curpath = env_lookup(p->env_seg, "PATH");
    if (curpath == NULL) {
      nls_outputnl(27,4); /* "No Path" */
    } else {
      unsigned short i;
      for (i = 0;; i++) {
        buff[i] = curpath[i];
        if (buff[i] == 0) break;
      }
      outputnl(buff);
    }
    return(CMD_FAIL);
  }
 
  /* more than 1 parameter */
  if (p->argc > 1) {
    nls_outputnl(0,4); /* "Too many parameters" */
    return(CMD_FAIL);
  }
 
  /* IF HERE: THERE IS EXACTLY 1 ARGUMENT (argc == 1) */
 
  /* reset the PATH string (PATH ;) */
  if (imatch(p->argv[0], ";")) {
    env_dropvar(p->env_seg, "PATH");
    return(CMD_OK);
  }
 
  /* otherwise set PATH to whatever is passed on command-line */
  {
    unsigned short i;
    strcpy(buff, "PATH=");
    for (i = 0;; i++) {
      buff[i + 5] = p->argv[0][i];
      if (buff[i + 5] == 0) break;
    }
    nls_strtoup(buff); /* upcase path, ref: https://osdn.net/projects/svardos/ticket/44146 */
    env_setvar(p->env_seg, buff);
  }
 
  return(CMD_OK);
}
 

Rev 989	Rev 1140
1	`/* This file is part of the SvarCOM project and is published under the terms`	1	`/* This file is part of the SvarCOM project and is published under the terms`
2	`* of the MIT license.`	2	`* of the MIT license.`
3	`*`	3	`*`
4	`* Copyright (C) 2021-2022 Mateusz Viste`	4	`* Copyright (C) 2021-2022 Mateusz Viste`
5	`*`	5	`*`
6	`* Permission is hereby granted, free of charge, to any person obtaining a`	6	`* Permission is hereby granted, free of charge, to any person obtaining a`
7	`* copy of this software and associated documentation files (the "Software"),`	7	`* copy of this software and associated documentation files (the "Software"),`
8	`* to deal in the Software without restriction, including without limitation`	8	`* to deal in the Software without restriction, including without limitation`
9	`* the rights to use, copy, modify, merge, publish, distribute, sublicense,`	9	`* the rights to use, copy, modify, merge, publish, distribute, sublicense,`
10	`* and/or sell copies of the Software, and to permit persons to whom the`	10	`* and/or sell copies of the Software, and to permit persons to whom the`
11	`* Software is furnished to do so, subject to the following conditions:`	11	`* Software is furnished to do so, subject to the following conditions:`
12	`*`	12	`*`
13	`* The above copyright notice and this permission notice shall be included in`	13	`* The above copyright notice and this permission notice shall be included in`
14	`* all copies or substantial portions of the Software.`	14	`* all copies or substantial portions of the Software.`
15	`*`	15	`*`
16	`* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR`	16	`* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR`
17	`* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,`	17	`* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,`
18	`* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE`	18	`* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE`
19	`* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER`	19	`* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER`
20	`* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING`	20	`* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING`
21	`* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER`	21	`* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER`
22	`* DEALINGS IN THE SOFTWARE.`	22	`* DEALINGS IN THE SOFTWARE.`
23	`*/`	23	`*/`
24		24
25	`/*`	25	`/*`
26	`* path`	26	`* path`
27	`*`	27	`*`
28	`* Displays or sets a search path for executable files.`	28	`* Displays or sets a search path for executable files.`
29	`*/`	29	`*/`
30		30
31	`static enum cmd_result cmd_path(struct cmd_funcparam *p) {`	31	`static enum cmd_result cmd_path(struct cmd_funcparam *p) {`
32	`char *buff = p->BUFFER;`	32	`char *buff = p->BUFFER;`
33		33
34	`/* help screen (/?) */`	34	`/* help screen (/?) */`
35	`if (cmd_ishlp(p)) {`	35	`if (cmd_ishlp(p)) {`
36	`nls_outputnl(27,0); /* "Displays or sets a search path for executable files." */`	36	`nls_outputnl(27,0); /* "Displays or sets a search path for executable files." */`
37	`outputnl("");`	37	`outputnl("");`
38	`nls_outputnl(27,1); /* "PATH [[drive:]path[;...]]" */`	38	`nls_outputnl(27,1); /* "PATH [[drive:]path[;...]]" */`
39	`outputnl("PATH ;");`	39	`outputnl("PATH ;");`
40	`outputnl("");`	40	`outputnl("");`
41	`nls_outputnl(27,2); /* "Type PATH ; to clear all search-path settings and (...)" */`	41	`nls_outputnl(27,2); /* "Type PATH ; to clear all search-path settings and (...)" */`
42	`outputnl("");`	42	`outputnl("");`
43	`nls_outputnl(27,3); /* "Type PATH without parameters to display the current path." */`	43	`nls_outputnl(27,3); /* "Type PATH without parameters to display the current path." */`
44	`return(CMD_OK);`	44	`return(CMD_OK);`
45	`}`	45	`}`
46		46
47	`/* no parameter - display current path */`	47	`/* no parameter - display current path */`
48	`if (p->argc == 0) {`	48	`if (p->argc == 0) {`
49	`char far *curpath = env_lookup(p->env_seg, "PATH");`	49	`char far *curpath = env_lookup(p->env_seg, "PATH");`
50	`if (curpath == NULL) {`	50	`if (curpath == NULL) {`
51	`nls_outputnl(27,4); /* "No Path" */`	51	`nls_outputnl(27,4); /* "No Path" */`
52	`} else {`	52	`} else {`
53	`unsigned short i;`	53	`unsigned short i;`
54	`for (i = 0;; i++) {`	54	`for (i = 0;; i++) {`
55	`buff[i] = curpath[i];`	55	`buff[i] = curpath[i];`
56	`if (buff[i] == 0) break;`	56	`if (buff[i] == 0) break;`
57	`}`	57	`}`
58	`outputnl(buff);`	58	`outputnl(buff);`
59	`}`	59	`}`
60	`return(CMD_FAIL);`	60	`return(CMD_FAIL);`
61	`}`	61	`}`
62		62
63	`/* more than 1 parameter */`	63	`/* more than 1 parameter */`
64	`if (p->argc > 1) {`	64	`if (p->argc > 1) {`
65	`nls_outputnl(0,4); /* "Too many parameters" */`	65	`nls_outputnl(0,4); /* "Too many parameters" */`
66	`return(CMD_FAIL);`	66	`return(CMD_FAIL);`
67	`}`	67	`}`
68		68
69	`/* IF HERE: THERE IS EXACTLY 1 ARGUMENT (argc == 1) */`	69	`/* IF HERE: THERE IS EXACTLY 1 ARGUMENT (argc == 1) */`
70		70
71	`/* reset the PATH string (PATH ;) */`	71	`/* reset the PATH string (PATH ;) */`
72	`if (imatch(p->argv[0], ";")) {`	72	`if (imatch(p->argv[0], ";")) {`
73	`env_dropvar(p->env_seg, "PATH");`	73	`env_dropvar(p->env_seg, "PATH");`
74	`return(CMD_OK);`	74	`return(CMD_OK);`
75	`}`	75	`}`
76		76
77	`/* otherwise set PATH to whatever is passed on command-line */`	77	`/* otherwise set PATH to whatever is passed on command-line */`
78	`{`	78	`{`
79	`unsigned short i;`	79	`unsigned short i;`
80	`strcpy(buff, "PATH=");`	80	`strcpy(buff, "PATH=");`
81	`for (i = 0;; i++) {`	81	`for (i = 0;; i++) {`
82	`buff[i + 5] = p->argv[0][i];`	82	`buff[i + 5] = p->argv[0][i];`
83	`if (buff[i + 5] == 0) break;`	83	`if (buff[i + 5] == 0) break;`
84	`}`	84	`}`
-		85	`nls_strtoup(buff); /* upcase path, ref: https://osdn.net/projects/svardos/ticket/44146 */`
85	`env_setvar(p->env_seg, buff);`	86	`env_setvar(p->env_seg, buff);`
86	`}`	87	`}`
87		88
88	`return(CMD_OK);`	89	`return(CMD_OK);`
89	`}`	90	`}`
90		91

Subversion Repositories SvarDOS

(root)/svarcom/trunk/cmd/path.c – Rev 989 → 1140