Commit | Line | Data |
fe14fcc3 |
1 | /* $Header: os2.c,v 4.0 91/03/20 01:36:21 lwall Locked $ |
d9d8d8de |
2 | * |
3 | * (C) Copyright 1989, 1990 Diomidis Spinellis. |
4 | * |
5 | * You may distribute under the terms of the GNU General Public License |
6 | * as specified in the README file that comes with the perl 3.0 kit. |
7 | * |
8 | * $Log: os2.c,v $ |
fe14fcc3 |
9 | * Revision 4.0 91/03/20 01:36:21 lwall |
10 | * 4.0 baseline. |
11 | * |
57ebbfd0 |
12 | * Revision 3.0.1.2 90/11/10 01:42:38 lwall |
13 | * patch38: more msdos/os2 upgrades |
14 | * |
d9d8d8de |
15 | * Revision 3.0.1.1 90/10/15 17:49:55 lwall |
16 | * patch29: Initial revision |
17 | * |
18 | * Revision 3.0.1.1 90/03/27 16:10:41 lwall |
19 | * patch16: MSDOS support |
20 | * |
21 | * Revision 1.1 90/03/18 20:32:01 dds |
22 | * Initial revision |
23 | * |
24 | */ |
25 | |
26 | #define INCL_DOS |
27 | #define INCL_NOPM |
28 | #include <os2.h> |
29 | |
30 | /* |
31 | * Various Unix compatibility functions for OS/2 |
32 | */ |
33 | |
34 | #include <stdio.h> |
35 | #include <errno.h> |
36 | #include <process.h> |
37 | |
38 | #include "EXTERN.h" |
39 | #include "perl.h" |
40 | |
41 | |
42 | /* dummies */ |
43 | |
44 | int ioctl(int handle, unsigned int function, char *data) |
45 | { return -1; } |
46 | |
47 | int userinit() |
48 | { return -1; } |
49 | |
50 | int syscall() |
51 | { return -1; } |
52 | |
53 | |
54 | /* extendd chdir() */ |
55 | |
56 | int chdir(char *path) |
57 | { |
58 | if ( path[0] != 0 && path[1] == ':' ) |
57ebbfd0 |
59 | DosSelectDisk(toupper(path[0]) - '@'); |
d9d8d8de |
60 | |
61 | DosChDir(path, 0L); |
62 | } |
63 | |
64 | |
65 | /* priorities */ |
66 | |
67 | int setpriority(int class, int pid, int val) |
68 | { |
69 | int flag = 0; |
70 | |
71 | if ( pid < 0 ) |
72 | { |
73 | flag++; |
74 | pid = -pid; |
75 | } |
76 | |
77 | return DosSetPrty(flag ? PRTYS_PROCESSTREE : PRTYS_PROCESS, class, val, pid); |
78 | } |
79 | |
80 | int getpriority(int which /* ignored */, int pid) |
81 | { |
82 | USHORT val; |
83 | |
84 | if ( DosGetPrty(PRTYS_PROCESS, &val, pid) ) |
85 | return -1; |
86 | else |
87 | return val; |
88 | } |
89 | |
90 | |
91 | /* get parent process id */ |
92 | |
93 | int getppid(void) |
94 | { |
95 | PIDINFO pi; |
96 | |
97 | DosGetPID(&pi); |
98 | return pi.pidParent; |
99 | } |
100 | |
101 | |
102 | /* kill */ |
103 | |
104 | int kill(int pid, int sig) |
105 | { |
106 | int flag = 0; |
107 | |
108 | if ( pid < 0 ) |
109 | { |
110 | flag++; |
111 | pid = -pid; |
112 | } |
113 | |
114 | switch ( sig & 3 ) |
115 | { |
116 | |
117 | case 0: |
118 | DosKillProcess(flag ? DKP_PROCESSTREE : DKP_PROCESS, pid); |
119 | break; |
120 | |
121 | case 1: /* FLAG A */ |
122 | DosFlagProcess(pid, flag ? FLGP_SUBTREE : FLGP_PID, PFLG_A, 0); |
123 | break; |
124 | |
125 | case 2: /* FLAG B */ |
126 | DosFlagProcess(pid, flag ? FLGP_SUBTREE : FLGP_PID, PFLG_B, 0); |
127 | break; |
128 | |
129 | case 3: /* FLAG C */ |
130 | DosFlagProcess(pid, flag ? FLGP_SUBTREE : FLGP_PID, PFLG_C, 0); |
131 | break; |
132 | |
133 | } |
134 | } |
135 | |
136 | |
137 | /* Sleep function. */ |
138 | void |
139 | sleep(unsigned len) |
140 | { |
141 | DosSleep(len * 1000L); |
142 | } |
143 | |
144 | /* Just pretend that everyone is a superuser */ |
145 | |
146 | int setuid() |
147 | { return 0; } |
148 | |
149 | int setgid() |
150 | { return 0; } |
151 | |
152 | int getuid(void) |
153 | { return 0; } |
154 | |
155 | int geteuid(void) |
156 | { return 0; } |
157 | |
158 | int getgid(void) |
159 | { return 0; } |
160 | |
161 | int getegid(void) |
162 | { return 0; } |
163 | |
164 | /* |
165 | * The following code is based on the do_exec and do_aexec functions |
166 | * in file doio.c |
167 | */ |
168 | int |
169 | do_aspawn(really,arglast) |
170 | STR *really; |
171 | int *arglast; |
172 | { |
173 | register STR **st = stack->ary_array; |
174 | register int sp = arglast[1]; |
175 | register int items = arglast[2] - sp; |
176 | register char **a; |
177 | char **argv; |
178 | char *tmps; |
179 | int status; |
180 | |
181 | if (items) { |
182 | New(1101,argv, items+1, char*); |
183 | a = argv; |
184 | for (st += ++sp; items > 0; items--,st++) { |
185 | if (*st) |
186 | *a++ = str_get(*st); |
187 | else |
188 | *a++ = ""; |
189 | } |
190 | *a = Nullch; |
191 | if (really && *(tmps = str_get(really))) |
192 | status = spawnvp(P_WAIT,tmps,argv); |
193 | else |
194 | status = spawnvp(P_WAIT,argv[0],argv); |
195 | Safefree(argv); |
196 | } |
197 | return status; |
198 | } |
199 | |
200 | char *getenv(char *name); |
201 | |
202 | int |
203 | do_spawn(cmd) |
204 | char *cmd; |
205 | { |
206 | register char **a; |
207 | register char *s; |
208 | char **argv; |
209 | char flags[10]; |
210 | int status; |
211 | char *shell, *cmd2; |
212 | |
213 | /* save an extra exec if possible */ |
214 | if ((shell = getenv("COMSPEC")) == 0) |
215 | shell = "C:\\OS2\\CMD.EXE"; |
216 | |
217 | /* see if there are shell metacharacters in it */ |
218 | if (strchr(cmd, '>') || strchr(cmd, '<') || strchr(cmd, '|') |
219 | || strchr(cmd, '&') || strchr(cmd, '^')) |
220 | doshell: |
221 | return spawnl(P_WAIT,shell,shell,"/C",cmd,(char*)0); |
222 | |
223 | New(1102,argv, strlen(cmd) / 2 + 2, char*); |
224 | |
225 | New(1103,cmd2, strlen(cmd) + 1, char); |
226 | strcpy(cmd2, cmd); |
227 | a = argv; |
228 | for (s = cmd2; *s;) { |
229 | while (*s && isspace(*s)) s++; |
230 | if (*s) |
231 | *(a++) = s; |
232 | while (*s && !isspace(*s)) s++; |
233 | if (*s) |
234 | *s++ = '\0'; |
235 | } |
236 | *a = Nullch; |
237 | if (argv[0]) |
238 | if ((status = spawnvp(P_WAIT,argv[0],argv)) == -1) { |
239 | Safefree(argv); |
240 | Safefree(cmd2); |
241 | goto doshell; |
242 | } |
243 | Safefree(cmd2); |
244 | Safefree(argv); |
245 | return status; |
246 | } |
247 | |
248 | usage(char *myname) |
249 | { |
250 | #ifdef MSDOS |
fe14fcc3 |
251 | printf("\nUsage: %s [-acdnpsSvw] [-0[octal]] [-Dnumber] [-i[extension]] [-Idirectory]" |
d9d8d8de |
252 | #else |
253 | printf("\nUsage: %s [-acdnpPsSuUvw] [-Dnumber] [-i[extension]] [-Idirectory]" |
254 | #endif |
255 | "\n [-e \"command\"] [-x[directory]] [filename] [arguments]\n", myname); |
256 | |
257 | printf("\n -a autosplit mode with -n or -p" |
258 | "\n -c syntaxcheck only" |
259 | "\n -d run scripts under debugger" |
260 | "\n -n assume 'while (<>) { ...script... }' loop arround your script" |
261 | "\n -p assume loop like -n but print line also like sed" |
262 | #ifndef MSDOS |
263 | "\n -P run script through C preprocessor befor compilation" |
264 | #endif |
265 | "\n -s enable some switch parsing for switches after script name" |
266 | "\n -S look for the script using PATH environment variable"); |
267 | #ifndef MSDOS |
268 | printf("\n -u dump core after compiling the script" |
269 | "\n -U allow unsafe operations"); |
270 | #endif |
271 | printf("\n -v print version number and patchlevel of perl" |
272 | "\n -w turn warnings on for compilation of your script\n" |
fe14fcc3 |
273 | "\n -0[octal] specify record separator (0, if no argument)" |
274 | "\n -Dnumber set debugging flags (argument is a bit mask)" |
d9d8d8de |
275 | "\n -i[extension] edit <> files in place (make backup if extension supplied)" |
276 | "\n -Idirectory specify include directory in conjunction with -P" |
277 | "\n -e command one line of script, multiple -e options are allowed" |
278 | "\n [filename] can be ommitted, when -e is used" |
279 | "\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
280 | } |