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> |
6d7e4387 |
13 | #include <alloca.h> |
9fb265f7 |
14 | #include <dlfcn.h> |
5db16f6a |
15 | |
b4bcd662 |
16 | /* |
17 | * pp_system() implemented via spawn() |
18 | * - more efficient and useful when embedding Perl in non-Cygwin apps |
19 | * - code mostly borrowed from djgpp.c |
20 | */ |
21 | static int |
22 | do_spawnvp (const char *path, const char * const *argv) |
23 | { |
acfe0abc |
24 | dTHX; |
b4bcd662 |
25 | Sigsave_t ihand,qhand; |
26 | int childpid, result, status; |
27 | |
ec1aec95 |
28 | rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand); |
29 | rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand); |
b4bcd662 |
30 | childpid = spawnvp(_P_NOWAIT,path,argv); |
31 | if (childpid < 0) { |
32 | status = -1; |
411caa50 |
33 | if(ckWARN(WARN_EXEC)) |
f98bc0c6 |
34 | Perl_warner(aTHX_ packWARN(WARN_EXEC),"Can't spawn \"%s\": %s", |
b4bcd662 |
35 | path,Strerror (errno)); |
b4bcd662 |
36 | } else { |
37 | do { |
38 | result = wait4pid(childpid, &status, 0); |
39 | } while (result == -1 && errno == EINTR); |
40 | if(result < 0) |
41 | status = -1; |
42 | } |
43 | (void)rsignal_restore(SIGINT, &ihand); |
44 | (void)rsignal_restore(SIGQUIT, &qhand); |
45 | return status; |
46 | } |
47 | |
48 | int |
49 | do_aspawn (SV *really, void **mark, void **sp) |
50 | { |
acfe0abc |
51 | dTHX; |
b4bcd662 |
52 | int rc; |
53 | char **a,*tmps,**argv; |
54 | STRLEN n_a; |
55 | |
56 | if (sp<=mark) |
57 | return -1; |
58 | a=argv=(char**) alloca ((sp-mark+3)*sizeof (char*)); |
59 | |
60 | while (++mark <= sp) |
61 | if (*mark) |
667e2948 |
62 | *a++ = SvPVx((SV *)*mark, n_a); |
b4bcd662 |
63 | else |
64 | *a++ = ""; |
65 | *a = Nullch; |
66 | |
67 | if (argv[0][0] != '/' && argv[0][0] != '\\' |
68 | && !(argv[0][0] && argv[0][1] == ':' |
69 | && (argv[0][2] == '/' || argv[0][2] != '\\')) |
70 | ) /* will swawnvp use PATH? */ |
71 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
72 | |
73 | if (really && *(tmps = SvPV(really, n_a))) |
74 | rc=do_spawnvp (tmps,(const char * const *)argv); |
75 | else |
76 | rc=do_spawnvp (argv[0],(const char *const *)argv); |
77 | |
78 | return rc; |
79 | } |
80 | |
81 | int |
82 | do_spawn (char *cmd) |
83 | { |
acfe0abc |
84 | dTHX; |
b4bcd662 |
85 | char **a,*s,*metachars = "$&*(){}[]'\";\\?>|<~`\n"; |
86 | const char *command[4]; |
87 | |
88 | while (*cmd && isSPACE(*cmd)) |
89 | cmd++; |
90 | |
91 | if (strnEQ (cmd,"/bin/sh",7) && isSPACE (cmd[7])) |
92 | cmd+=5; |
93 | |
94 | /* save an extra exec if possible */ |
95 | /* see if there are shell metacharacters in it */ |
96 | if (strstr (cmd,"...")) |
97 | goto doshell; |
98 | if (*cmd=='.' && isSPACE (cmd[1])) |
99 | goto doshell; |
100 | if (strnEQ (cmd,"exec",4) && isSPACE (cmd[4])) |
101 | goto doshell; |
102 | for (s=cmd; *s && isALPHA (*s); s++) ; /* catch VAR=val gizmo */ |
103 | if (*s=='=') |
104 | goto doshell; |
105 | |
106 | for (s=cmd; *s; s++) |
107 | if (strchr (metachars,*s)) |
108 | { |
109 | if (*s=='\n' && s[1]=='\0') |
110 | { |
111 | *s='\0'; |
112 | break; |
113 | } |
114 | doshell: |
115 | command[0] = "sh"; |
116 | command[1] = "-c"; |
117 | command[2] = cmd; |
118 | command[3] = NULL; |
119 | |
120 | return do_spawnvp("sh",command); |
121 | } |
122 | |
a02a5408 |
123 | Newx (PL_Argv,(s-cmd)/2+2,char*); |
b4bcd662 |
124 | PL_Cmd=savepvn (cmd,s-cmd); |
125 | a=PL_Argv; |
126 | for (s=PL_Cmd; *s;) { |
127 | while (*s && isSPACE (*s)) s++; |
128 | if (*s) |
129 | *(a++)=s; |
130 | while (*s && !isSPACE (*s)) s++; |
131 | if (*s) |
132 | *s++='\0'; |
133 | } |
134 | *a=Nullch; |
135 | if (!PL_Argv[0]) |
136 | return -1; |
137 | |
138 | return do_spawnvp(PL_Argv[0],(const char * const *)PL_Argv); |
139 | } |
5db16f6a |
140 | |
141 | /* see also Cwd.pm */ |
5db16f6a |
142 | XS(Cygwin_cwd) |
143 | { |
144 | dXSARGS; |
145 | char *cwd; |
146 | |
147 | if(items != 0) |
148 | Perl_croak(aTHX_ "Usage: Cwd::cwd()"); |
47dafe4d |
149 | if((cwd = getcwd(NULL, -1))) { |
5db16f6a |
150 | ST(0) = sv_2mortal(newSVpv(cwd, 0)); |
a236cecb |
151 | free(cwd); |
6be3b590 |
152 | #ifndef INCOMPLETE_TAINTS |
153 | SvTAINTED_on(ST(0)); |
154 | #endif |
5db16f6a |
155 | XSRETURN(1); |
156 | } |
157 | XSRETURN_UNDEF; |
158 | } |
159 | |
49fd6edc |
160 | XS(XS_Cygwin_pid_to_winpid) |
161 | { |
162 | dXSARGS; |
d2dc0126 |
163 | dXSTARG; |
164 | pid_t pid, RETVAL; |
165 | |
49fd6edc |
166 | if (items != 1) |
167 | Perl_croak(aTHX_ "Usage: Cygwin::pid_to_winpid(pid)"); |
d2dc0126 |
168 | |
169 | pid = (pid_t)SvIV(ST(0)); |
170 | |
49fd6edc |
171 | if ((RETVAL = cygwin_internal(CW_CYGWIN_PID_TO_WINPID, pid)) > 0) { |
172 | XSprePUSH; PUSHi((IV)RETVAL); |
173 | XSRETURN(1); |
174 | } |
175 | XSRETURN_UNDEF; |
176 | } |
177 | |
49fd6edc |
178 | XS(XS_Cygwin_winpid_to_pid) |
179 | { |
180 | dXSARGS; |
d2dc0126 |
181 | dXSTARG; |
182 | pid_t pid, RETVAL; |
183 | |
49fd6edc |
184 | if (items != 1) |
185 | Perl_croak(aTHX_ "Usage: Cygwin::winpid_to_pid(pid)"); |
d2dc0126 |
186 | |
187 | pid = (pid_t)SvIV(ST(0)); |
188 | |
49fd6edc |
189 | if ((RETVAL = cygwin32_winpid_to_pid(pid)) > 0) { |
190 | XSprePUSH; PUSHi((IV)RETVAL); |
191 | XSRETURN(1); |
192 | } |
193 | XSRETURN_UNDEF; |
194 | } |
195 | |
196 | |
5db16f6a |
197 | void |
198 | init_os_extras(void) |
199 | { |
5db16f6a |
200 | dTHX; |
9fb265f7 |
201 | char *file = __FILE__; |
202 | void *handle; |
5db16f6a |
203 | |
204 | newXS("Cwd::cwd", Cygwin_cwd, file); |
49fd6edc |
205 | newXS("Cygwin::winpid_to_pid", XS_Cygwin_winpid_to_pid, file); |
206 | newXS("Cygwin::pid_to_winpid", XS_Cygwin_pid_to_winpid, file); |
78ff2d7b |
207 | |
9fb265f7 |
208 | /* Initialize Win32CORE if it has been statically linked. */ |
209 | handle = dlopen(NULL, RTLD_LAZY); |
210 | if (handle) { |
211 | void (*pfn_init)(pTHX); |
212 | pfn_init = (void (*)(pTHX))dlsym(handle, "init_Win32CORE"); |
213 | if (pfn_init) |
214 | pfn_init(aTHX); |
215 | dlclose(handle); |
78ff2d7b |
216 | } |
5db16f6a |
217 | } |