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