Commit | Line | Data |
5db16f6a |
1 | /* |
2 | * Cygwin extras |
3 | */ |
4 | |
5 | #include "EXTERN.h" |
6 | #include "perl.h" |
7 | #undef USE_DYNAMIC_LOADING |
8 | #include "XSUB.h" |
9 | |
6b49d266 |
10 | #include <unistd.h> |
b4bcd662 |
11 | #include <process.h> |
49fd6edc |
12 | #include <sys/cygwin.h> |
a25ce5f3 |
13 | #include <mntent.h> |
6d7e4387 |
14 | #include <alloca.h> |
9fb265f7 |
15 | #include <dlfcn.h> |
5db16f6a |
16 | |
b4bcd662 |
17 | /* |
18 | * pp_system() implemented via spawn() |
19 | * - more efficient and useful when embedding Perl in non-Cygwin apps |
20 | * - code mostly borrowed from djgpp.c |
21 | */ |
22 | static int |
23 | do_spawnvp (const char *path, const char * const *argv) |
24 | { |
acfe0abc |
25 | dTHX; |
b4bcd662 |
26 | Sigsave_t ihand,qhand; |
27 | int childpid, result, status; |
28 | |
ec1aec95 |
29 | rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand); |
30 | rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand); |
b4bcd662 |
31 | childpid = spawnvp(_P_NOWAIT,path,argv); |
32 | if (childpid < 0) { |
33 | status = -1; |
411caa50 |
34 | if(ckWARN(WARN_EXEC)) |
f98bc0c6 |
35 | Perl_warner(aTHX_ packWARN(WARN_EXEC),"Can't spawn \"%s\": %s", |
b4bcd662 |
36 | path,Strerror (errno)); |
b4bcd662 |
37 | } else { |
38 | do { |
39 | result = wait4pid(childpid, &status, 0); |
40 | } while (result == -1 && errno == EINTR); |
41 | if(result < 0) |
42 | status = -1; |
43 | } |
44 | (void)rsignal_restore(SIGINT, &ihand); |
45 | (void)rsignal_restore(SIGQUIT, &qhand); |
46 | return status; |
47 | } |
48 | |
49 | int |
50 | do_aspawn (SV *really, void **mark, void **sp) |
51 | { |
acfe0abc |
52 | dTHX; |
b4bcd662 |
53 | int rc; |
54 | char **a,*tmps,**argv; |
55 | STRLEN n_a; |
56 | |
57 | if (sp<=mark) |
58 | return -1; |
59 | a=argv=(char**) alloca ((sp-mark+3)*sizeof (char*)); |
60 | |
61 | while (++mark <= sp) |
62 | if (*mark) |
667e2948 |
63 | *a++ = SvPVx((SV *)*mark, n_a); |
b4bcd662 |
64 | else |
65 | *a++ = ""; |
66 | *a = Nullch; |
67 | |
68 | if (argv[0][0] != '/' && argv[0][0] != '\\' |
69 | && !(argv[0][0] && argv[0][1] == ':' |
70 | && (argv[0][2] == '/' || argv[0][2] != '\\')) |
71 | ) /* will swawnvp use PATH? */ |
72 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
73 | |
74 | if (really && *(tmps = SvPV(really, n_a))) |
75 | rc=do_spawnvp (tmps,(const char * const *)argv); |
76 | else |
77 | rc=do_spawnvp (argv[0],(const char *const *)argv); |
78 | |
79 | return rc; |
80 | } |
81 | |
82 | int |
83 | do_spawn (char *cmd) |
84 | { |
acfe0abc |
85 | dTHX; |
b4bcd662 |
86 | char **a,*s,*metachars = "$&*(){}[]'\";\\?>|<~`\n"; |
87 | const char *command[4]; |
88 | |
89 | while (*cmd && isSPACE(*cmd)) |
90 | cmd++; |
91 | |
92 | if (strnEQ (cmd,"/bin/sh",7) && isSPACE (cmd[7])) |
93 | cmd+=5; |
94 | |
95 | /* save an extra exec if possible */ |
96 | /* see if there are shell metacharacters in it */ |
97 | if (strstr (cmd,"...")) |
98 | goto doshell; |
99 | if (*cmd=='.' && isSPACE (cmd[1])) |
100 | goto doshell; |
101 | if (strnEQ (cmd,"exec",4) && isSPACE (cmd[4])) |
102 | goto doshell; |
103 | for (s=cmd; *s && isALPHA (*s); s++) ; /* catch VAR=val gizmo */ |
104 | if (*s=='=') |
105 | goto doshell; |
106 | |
107 | for (s=cmd; *s; s++) |
108 | if (strchr (metachars,*s)) |
109 | { |
110 | if (*s=='\n' && s[1]=='\0') |
111 | { |
112 | *s='\0'; |
113 | break; |
114 | } |
115 | doshell: |
116 | command[0] = "sh"; |
117 | command[1] = "-c"; |
118 | command[2] = cmd; |
119 | command[3] = NULL; |
120 | |
121 | return do_spawnvp("sh",command); |
122 | } |
123 | |
a02a5408 |
124 | Newx (PL_Argv,(s-cmd)/2+2,char*); |
b4bcd662 |
125 | PL_Cmd=savepvn (cmd,s-cmd); |
126 | a=PL_Argv; |
127 | for (s=PL_Cmd; *s;) { |
128 | while (*s && isSPACE (*s)) s++; |
129 | if (*s) |
130 | *(a++)=s; |
131 | while (*s && !isSPACE (*s)) s++; |
132 | if (*s) |
133 | *s++='\0'; |
134 | } |
135 | *a=Nullch; |
136 | if (!PL_Argv[0]) |
137 | return -1; |
138 | |
139 | return do_spawnvp(PL_Argv[0],(const char * const *)PL_Argv); |
140 | } |
5db16f6a |
141 | |
142 | /* see also Cwd.pm */ |
5db16f6a |
143 | XS(Cygwin_cwd) |
144 | { |
145 | dXSARGS; |
146 | char *cwd; |
147 | |
482150a7 |
148 | /* See http://rt.perl.org/rt3/Ticket/Display.html?id=38628 |
149 | There is Cwd->cwd() usage in the wild, and previous versions didn't die. |
150 | */ |
151 | if(items > 1) |
5db16f6a |
152 | Perl_croak(aTHX_ "Usage: Cwd::cwd()"); |
47dafe4d |
153 | if((cwd = getcwd(NULL, -1))) { |
5db16f6a |
154 | ST(0) = sv_2mortal(newSVpv(cwd, 0)); |
a236cecb |
155 | free(cwd); |
6be3b590 |
156 | #ifndef INCOMPLETE_TAINTS |
157 | SvTAINTED_on(ST(0)); |
158 | #endif |
5db16f6a |
159 | XSRETURN(1); |
160 | } |
161 | XSRETURN_UNDEF; |
162 | } |
163 | |
49fd6edc |
164 | XS(XS_Cygwin_pid_to_winpid) |
165 | { |
166 | dXSARGS; |
d2dc0126 |
167 | dXSTARG; |
168 | pid_t pid, RETVAL; |
169 | |
49fd6edc |
170 | if (items != 1) |
171 | Perl_croak(aTHX_ "Usage: Cygwin::pid_to_winpid(pid)"); |
d2dc0126 |
172 | |
173 | pid = (pid_t)SvIV(ST(0)); |
174 | |
49fd6edc |
175 | if ((RETVAL = cygwin_internal(CW_CYGWIN_PID_TO_WINPID, pid)) > 0) { |
176 | XSprePUSH; PUSHi((IV)RETVAL); |
177 | XSRETURN(1); |
178 | } |
179 | XSRETURN_UNDEF; |
180 | } |
181 | |
49fd6edc |
182 | XS(XS_Cygwin_winpid_to_pid) |
183 | { |
184 | dXSARGS; |
d2dc0126 |
185 | dXSTARG; |
186 | pid_t pid, RETVAL; |
187 | |
49fd6edc |
188 | if (items != 1) |
189 | Perl_croak(aTHX_ "Usage: Cygwin::winpid_to_pid(pid)"); |
d2dc0126 |
190 | |
191 | pid = (pid_t)SvIV(ST(0)); |
192 | |
49fd6edc |
193 | if ((RETVAL = cygwin32_winpid_to_pid(pid)) > 0) { |
194 | XSprePUSH; PUSHi((IV)RETVAL); |
195 | XSRETURN(1); |
196 | } |
197 | XSRETURN_UNDEF; |
198 | } |
199 | |
15414d2b |
200 | XS(XS_Cygwin_win_to_posix_path) |
201 | { |
202 | dXSARGS; |
203 | int absolute_flag = 0; |
204 | STRLEN len; |
205 | int err; |
206 | char *pathname, *buf; |
207 | |
208 | if (items < 1 || items > 2) |
209 | Perl_croak(aTHX_ "Usage: Cygwin::win_to_posix_path(pathname, [absolute])"); |
210 | |
211 | pathname = SvPV(ST(0), len); |
212 | if (items == 2) |
213 | absolute_flag = SvTRUE(ST(1)); |
214 | |
215 | if (!len) |
216 | Perl_croak(aTHX_ "can't convert empty path"); |
217 | buf = (char *) safemalloc (len + 260 + 1001); |
218 | |
219 | if (absolute_flag) |
220 | err = cygwin_conv_to_full_posix_path(pathname, buf); |
221 | else |
222 | err = cygwin_conv_to_posix_path(pathname, buf); |
223 | if (!err) { |
224 | ST(0) = sv_2mortal(newSVpv(buf, 0)); |
225 | safefree(buf); |
226 | XSRETURN(1); |
227 | } else { |
228 | safefree(buf); |
229 | XSRETURN_UNDEF; |
230 | } |
231 | } |
232 | |
233 | XS(XS_Cygwin_posix_to_win_path) |
234 | { |
235 | dXSARGS; |
236 | int absolute_flag = 0; |
237 | STRLEN len; |
238 | int err; |
239 | char *pathname, *buf; |
240 | |
241 | if (items < 1 || items > 2) |
242 | Perl_croak(aTHX_ "Usage: Cygwin::posix_to_win_path(pathname, [absolute])"); |
243 | |
244 | pathname = SvPV(ST(0), len); |
245 | if (items == 2) |
246 | absolute_flag = SvTRUE(ST(1)); |
247 | |
248 | if (!len) |
249 | Perl_croak(aTHX_ "can't convert empty path"); |
250 | buf = (char *) safemalloc(len + 260 + 1001); |
251 | |
252 | if (absolute_flag) |
253 | err = cygwin_conv_to_full_win32_path(pathname, buf); |
254 | else |
255 | err = cygwin_conv_to_win32_path(pathname, buf); |
256 | if (!err) { |
257 | ST(0) = sv_2mortal(newSVpv(buf, 0)); |
258 | safefree(buf); |
259 | XSRETURN(1); |
260 | } else { |
261 | safefree(buf); |
262 | XSRETURN_UNDEF; |
263 | } |
264 | } |
265 | |
a25ce5f3 |
266 | XS(XS_Cygwin_mount_table) |
267 | { |
268 | dXSARGS; |
269 | struct mntent *mnt; |
270 | |
271 | if (items != 0) |
272 | Perl_croak(aTHX_ "Usage: Cygwin::mount_table"); |
273 | /* => array of [mnt_dir mnt_fsname mnt_type mnt_opts] */ |
274 | |
275 | setmntent (0, 0); |
276 | while ((mnt = getmntent (0))) { |
277 | AV* av = newAV(); |
278 | av_push(av, newSVpvn(mnt->mnt_dir, strlen(mnt->mnt_dir))); |
279 | av_push(av, newSVpvn(mnt->mnt_fsname, strlen(mnt->mnt_fsname))); |
280 | av_push(av, newSVpvn(mnt->mnt_type, strlen(mnt->mnt_type))); |
281 | av_push(av, newSVpvn(mnt->mnt_opts, strlen(mnt->mnt_opts))); |
282 | XPUSHs(sv_2mortal(newRV_noinc((SV*)av))); |
283 | } |
284 | endmntent (0); |
285 | PUTBACK; |
286 | } |
287 | |
288 | XS(XS_Cygwin_mount_flags) |
289 | { |
290 | dXSARGS; |
291 | char *pathname; |
292 | char flags[260]; |
293 | |
294 | if (items != 1) |
74dc058d |
295 | Perl_croak(aTHX_ "Usage: Cygwin::mount_flags(mnt_dir|'/cygwin')"); |
a25ce5f3 |
296 | |
297 | pathname = SvPV_nolen(ST(0)); |
74dc058d |
298 | |
299 | /* TODO: Check for cygdrive registry setting, |
300 | * and then use CW_GET_CYGDRIVE_INFO |
a25ce5f3 |
301 | */ |
302 | if (!strcmp(pathname, "/cygdrive")) { |
303 | char user[260]; |
304 | char system[260]; |
305 | char user_flags[260]; |
306 | char system_flags[260]; |
74dc058d |
307 | |
a25ce5f3 |
308 | cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system, user_flags, |
309 | system_flags); |
74dc058d |
310 | |
311 | if (strlen(user) > 0) { |
312 | sprintf(flags, "%s,cygdrive,%s", user_flags, user); |
313 | } else { |
314 | sprintf(flags, "%s,cygdrive,%s", system_flags, system); |
315 | } |
316 | |
a25ce5f3 |
317 | ST(0) = sv_2mortal(newSVpv(flags, 0)); |
318 | XSRETURN(1); |
74dc058d |
319 | |
a25ce5f3 |
320 | } else { |
321 | struct mntent *mnt; |
322 | setmntent (0, 0); |
323 | while ((mnt = getmntent (0))) { |
324 | if (!strcmp(pathname, mnt->mnt_dir)) { |
325 | strcpy(flags, mnt->mnt_type); |
326 | if (strlen(mnt->mnt_opts) > 0) { |
327 | strcat(flags, ","); |
328 | strcat(flags, mnt->mnt_opts); |
329 | } |
330 | break; |
331 | } |
332 | } |
333 | endmntent (0); |
334 | ST(0) = sv_2mortal(newSVpv(flags, 0)); |
335 | XSRETURN(1); |
336 | } |
337 | } |
338 | |
15414d2b |
339 | XS(XS_Cygwin_is_binmount) |
340 | { |
341 | dXSARGS; |
342 | char *pathname; |
343 | |
344 | if (items != 1) |
345 | Perl_croak(aTHX_ "Usage: Cygwin::is_binmount(pathname)"); |
346 | |
347 | pathname = SvPV_nolen(ST(0)); |
348 | |
349 | ST(0) = boolSV(cygwin_internal(CW_GET_BINMODE, pathname)); |
350 | XSRETURN(1); |
351 | } |
352 | |
5db16f6a |
353 | void |
354 | init_os_extras(void) |
355 | { |
5db16f6a |
356 | dTHX; |
9fb265f7 |
357 | char *file = __FILE__; |
358 | void *handle; |
5db16f6a |
359 | |
360 | newXS("Cwd::cwd", Cygwin_cwd, file); |
15414d2b |
361 | newXSproto("Cygwin::winpid_to_pid", XS_Cygwin_winpid_to_pid, file, "$"); |
362 | newXSproto("Cygwin::pid_to_winpid", XS_Cygwin_pid_to_winpid, file, "$"); |
363 | newXSproto("Cygwin::win_to_posix_path", XS_Cygwin_win_to_posix_path, file, "$;$"); |
364 | newXSproto("Cygwin::posix_to_win_path", XS_Cygwin_posix_to_win_path, file, "$;$"); |
a25ce5f3 |
365 | newXSproto("Cygwin::mount_table", XS_Cygwin_mount_table, file, ""); |
366 | newXSproto("Cygwin::mount_flags", XS_Cygwin_mount_flags, file, "$"); |
15414d2b |
367 | newXSproto("Cygwin::is_binmount", XS_Cygwin_is_binmount, file, "$"); |
78ff2d7b |
368 | |
9fb265f7 |
369 | /* Initialize Win32CORE if it has been statically linked. */ |
370 | handle = dlopen(NULL, RTLD_LAZY); |
371 | if (handle) { |
372 | void (*pfn_init)(pTHX); |
373 | pfn_init = (void (*)(pTHX))dlsym(handle, "init_Win32CORE"); |
374 | if (pfn_init) |
375 | pfn_init(aTHX); |
376 | dlclose(handle); |
78ff2d7b |
377 | } |
5db16f6a |
378 | } |