1 /*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20 */
21 #include "../../SDL_internal.h"
22
23 #ifdef SDL_FILESYSTEM_OS2
24
25 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
26 /* System dependent filesystem routines */
27
28 #include "SDL_error.h"
29 #include "SDL_filesystem.h"
30 #include "../../core/os2/SDL_os2.h"
31
32 #define INCL_DOSFILEMGR
33 #define INCL_DOSPROCESS
34 #define INCL_DOSERRORS
35 #include <os2.h>
36
37
38 char *
SDL_GetBasePath(void)39 SDL_GetBasePath(void)
40 {
41 PTIB tib;
42 PPIB pib;
43 ULONG ulRC = DosGetInfoBlocks(&tib, &pib);
44 PCHAR pcEnd;
45 ULONG cbResult;
46 CHAR acBuf[_MAX_PATH];
47
48 if (ulRC != NO_ERROR) {
49 debug_os2("DosGetInfoBlocks() failed, rc = %u", ulRC);
50 return NULL;
51 }
52
53 pcEnd = SDL_strrchr(pib->pib_pchcmd, '\\');
54 if (pcEnd != NULL)
55 pcEnd++;
56 else {
57 if (pib->pib_pchcmd[1] == ':')
58 pcEnd = &pib->pib_pchcmd[2];
59 else {
60 SDL_SetError("No path in pib->pib_pchcmd");
61 return NULL;
62 }
63 }
64
65 cbResult = pcEnd - pib->pib_pchcmd;
66 SDL_memcpy(acBuf, pib->pib_pchcmd, cbResult);
67 acBuf[cbResult] = '\0';
68
69 return OS2_SysToUTF8(acBuf);
70 }
71
72 char *
SDL_GetPrefPath(const char * org,const char * app)73 SDL_GetPrefPath(const char *org, const char *app)
74 {
75 PSZ pszPath;
76 CHAR acBuf[_MAX_PATH];
77 int lPosApp, lPosOrg;
78 PSZ pszApp, pszOrg;
79
80 if (!app) {
81 SDL_InvalidParamError("app");
82 return NULL;
83 }
84
85 pszPath = SDL_getenv("HOME");
86 if (!pszPath) {
87 pszPath = SDL_getenv("ETC");
88 if (!pszPath) {
89 SDL_SetError("HOME or ETC environment not set");
90 return NULL;
91 }
92 }
93
94 if (!org) {
95 lPosApp = SDL_snprintf(acBuf, sizeof(acBuf) - 1, "%s", pszPath);
96 } else {
97 pszOrg = OS2_UTF8ToSys(org);
98 if (!pszOrg) {
99 SDL_OutOfMemory();
100 return NULL;
101 }
102 lPosApp = SDL_snprintf(acBuf, sizeof(acBuf) - 1, "%s\\%s", pszPath, pszOrg);
103 SDL_free(pszOrg);
104 }
105 if (lPosApp < 0)
106 return NULL;
107
108 DosCreateDir(acBuf, NULL);
109
110 pszApp = OS2_UTF8ToSys(app);
111 if (!pszApp) {
112 SDL_OutOfMemory();
113 return NULL;
114 }
115
116 lPosOrg = SDL_snprintf(&acBuf[lPosApp], sizeof(acBuf) - lPosApp - 1, "\\%s", pszApp);
117 SDL_free(pszApp);
118 if (lPosOrg < 0)
119 return NULL;
120
121 DosCreateDir(acBuf, NULL);
122 *((PUSHORT)&acBuf[lPosApp + lPosOrg]) = (USHORT)'\0\\';
123
124 return OS2_SysToUTF8(acBuf);
125 }
126
127 #endif /* SDL_FILESYSTEM_OS2 */
128
129 /* vi: set ts=4 sw=4 expandtab: */
130