1 /*******************************************************************************
2 Copyright (c) 2017, Michael Wallner <mike@php.net>.
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
8 * Redistributions of source code must retain the above copyright notice,
9 this list of conditions and the following disclaimer.
10 * Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
12 documentation and/or other materials provided with the distribution.
14 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
18 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *******************************************************************************/
26 #include "php_psi_stdinc.h"
35 struct psi_decl_extvar
*psi_decl_extvar_init(struct psi_decl_arg
*arg
)
37 struct psi_decl_extvar
*evar
= calloc(1, sizeof(*evar
));
43 void psi_decl_extvar_free(struct psi_decl_extvar
**evar_ptr
)
46 struct psi_decl_extvar
*evar
= *evar_ptr
;
52 psi_decl_arg_free(&evar
->arg
);
53 psi_decl_free(&evar
->getter
);
54 psi_decl_free(&evar
->setter
);
59 bool psi_decl_extvar_validate(struct psi_data
*data
,
60 struct psi_decl_extvar
*evar
, struct psi_validate_scope
*scope
)
62 if (!psi_decl_arg_validate(data
, evar
->arg
, scope
)) {
66 evar
->size
= psi_decl_arg_get_size(evar
->arg
);
68 data
->error(data
, evar
->arg
->var
->token
, PSI_WARNING
,
69 "Failed to calculate size of symbol '%s'", evar
->arg
->var
->name
);
75 # define RTLD_NEXT ((void *) -1l)
78 # define RTLD_DEFAULT ((void *) 0)
80 evar
->sym
= dlsym(scope
->dlopened
?: RTLD_DEFAULT
, evar
->arg
->var
->name
);
82 data
->error(data
, evar
->arg
->var
->token
, PSI_WARNING
,
83 "Failed to locate symbol '%s': %s", evar
->arg
->var
->name
,
84 dlerror() ?: "not found");
89 evar
->getter
= psi_decl_extvar_getter(evar
);
90 if (!psi_decl_validate_nodl(data
, evar
->getter
, scope
)) {
93 evar
->setter
= psi_decl_extvar_setter(evar
);
94 if (!psi_decl_validate_nodl(data
, evar
->setter
, scope
)) {
101 void psi_decl_extvar_dump(int fd
, struct psi_decl_extvar
*evar
)
103 dprintf(fd
, "extern ");
104 psi_decl_arg_dump(fd
, evar
->arg
, 0);
108 struct psi_decl
*psi_decl_extvar_setter(struct psi_decl_extvar
*evar
)
110 struct psi_decl_type
*func_type
= psi_decl_type_init(PSI_T_VOID
, "void");
111 struct psi_decl_var
*func_var
= psi_decl_var_copy(evar
->arg
->var
);
112 struct psi_decl_arg
*func
= psi_decl_arg_init(func_type
, func_var
);
113 struct psi_decl_type
*arg_type
= psi_decl_type_copy(evar
->arg
->type
);
114 struct psi_decl_var
*arg_var
= psi_decl_var_copy(evar
->arg
->var
);
115 struct psi_decl_arg
*arg
= psi_decl_arg_init(arg_type
, arg_var
);
116 struct psi_plist
*args
= psi_plist_init((psi_plist_dtor
) psi_decl_arg_free
);
117 struct psi_decl
*decl
= psi_decl_init(func
, psi_plist_add(args
, &arg
));
119 func_var
->pointer_level
= 0;
120 func_var
->array_size
= 0;
121 func_var
->name
= realloc(func_var
->name
, strlen(evar
->arg
->var
->name
) + sizeof("_set"));
122 strcat(func_var
->name
, "_set");
127 void psi_decl_extvar_set(struct psi_decl_extvar
*evar
, void *ptr
)
129 memcpy(evar
->sym
, ptr
, evar
->size
);
132 struct psi_decl
*psi_decl_extvar_getter(struct psi_decl_extvar
*evar
)
134 struct psi_decl_type
*func_type
= psi_decl_type_copy(evar
->arg
->type
);
135 struct psi_decl_var
*func_var
= psi_decl_var_copy(evar
->arg
->var
);
136 struct psi_decl_arg
*func
= psi_decl_arg_init(func_type
, func_var
);
137 struct psi_decl
*decl
= psi_decl_init(func
, NULL
);
139 func_var
->name
= realloc(func_var
->name
, strlen(evar
->arg
->var
->name
) + sizeof("_get"));
140 strcat(func_var
->name
, "_get");
145 void psi_decl_extvar_get(struct psi_decl_extvar
*evar
, void *ptr
)
147 memcpy(ptr
, evar
->sym
, evar
->size
);
151 bool psi_decl_extvar_is_blacklisted(const char *name
)
156 while (psi_plist_get(PSI_G(blacklist
).vars
, i
++, &blacklisted
)) {
157 if (!fnmatch(blacklisted
, name
, 0)) {