extern unsigned long
dllversion(void* dll, const char* path)
{
Dll_plugin_version_f pvf;
if (pvf = (Dll_plugin_version_f)dlllook(dll, "plugin_version"))
return (*pvf)();
if (path)
{
state.error = 1;
sfsprintf(state.errorbuf, sizeof(state.errorbuf), "plugin_version() not found");
errorf("dll", NiL, 1, "dllversion: %s: %s", path, state.errorbuf);
}
return 0;
}
int
pzlib(register Pz_t* pz, register const char* name, int ignore)
{
register Pzdll_t* dll;
register Pzdllpz_t* pzs;
char* id;
char buf[64];
char path[PATH_MAX];
if (id = strrchr(state.id, ':'))
id++;
else
id = (char*)state.id;
/*
* see if the dll is already loaded
*/
for (dll = state.dll; dll && !streq(dll->name, name); dll = dll->next);
if (!dll)
{
/*
* add to the list and open
*/
if (!(dll = newof(0, Pzdll_t, 1, strlen(name) + 1)))
return -1;
dll->name = strcpy((char*)(dll + 1), name);
dll->next = state.dll;
state.dll = dll;
if (ignore)
return 0;
if (!(dll->dll = dllplugin(id, dll->name, NiL, PZ_PLUGIN_VERSION, NiL, RTLD_LAZY, path, sizeof(path))))
{
if (pz->disc && pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, ERROR_SYSTEM|2, "%s: %s", dll->name, dlerror());
return -1;
}
/*
* get the initialization function
*/
sfsprintf(buf, sizeof(buf), "%s_init", id);
if (!(dll->initf = (Pzinit_f)dlllook(dll->dll, buf)))
{
if (pz->disc && pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, 2, "%s: %s: initialization function not found in library", path, buf);
return -1;
}
}
/*
* see if pz already initialized
*/
if (dll->initf)
{
for (pzs = dll->pzs; pzs && pzs->pz != pz; pzs = pzs->next);
if (!pzs)
{
if (!(pzs = newof(0, Pzdllpz_t, 1, 0)))
return -1;
pzs->pz = pz;
pzs->next = dll->pzs;
dll->pzs = pzs;
if (!(dll->usage = pzinit(pz, dll->name, dll->initf)))
return -1;
}
}
return 0;
}
int
b_dlls(int argc, char** argv, Shbltin_t* context)
{
int i;
int r;
int flags;
int only;
unsigned long ver;
char** syms;
char* arg[3];
void* dll;
void* sym;
Dllscan_t* dls;
Dllent_t* dle;
Dllinfo_t* dli;
cmdinit(argc, argv, context, ERROR_CATALOG, 0);
flags = 0;
only = 0;
for (;;)
{
switch (optget(argv, usage))
{
case 0:
break;
case 'b':
flags |= LIST_BASE;
continue;
case 'c':
only = 1;
continue;
case 'i':
flags |= LIST_INFO;
continue;
case 'l':
flags |= LIST_LONG;
continue;
case 'p':
flags |= LIST_PATH;
continue;
case ':':
error(2, "%s", opt_info.arg);
continue;
case '?':
error(ERROR_usage(2), "%s", opt_info.arg);
continue;
}
break;
}
argv += opt_info.index;
if (error_info.errors)
error(ERROR_usage(2), "%s", optusage(NiL));
r = 0;
if (flags & LIST_INFO)
{
if (!(dli = dllinfo()))
error(2, "cannot determine native dll info");
sfprintf(sfstdout, "sibling=(%s", dli->sibling[0]);
for (i = 1; dli->sibling[i]; i++)
sfprintf(sfstdout, " %s", dli->sibling[i]);
sfprintf(sfstdout, ") env=%s prefix=%s suffix=%s flags=", dli->env, dli->prefix, dli->suffix);
i = 0;
if (dli->flags & DLL_INFO_PREVER)
{
i = 1;
sfprintf(sfstdout, "PREVER");
}
if (dli->flags & DLL_INFO_DOTVER)
{
if (i)
sfputc(sfstdout, '|');
sfprintf(sfstdout, "DOTVER");
}
sfputc(sfstdout, '\n');
}
else if (!(flags & (LIST_BASE|LIST_PATH)))
flags |= LIST_BASE|LIST_PATH;
if (flags &= (LIST_BASE|LIST_PATH|LIST_LONG))
{
for (i = 0; i < elementsof(arg); i++)
if (arg[i] = *argv)
argv++;
if (only && !*argv)
error(ERROR_usage(2), "%s", optusage(NiL));
r = 1;
for (;;)
{
if (dls = dllsopen(arg[0], arg[1], arg[2]))
{
while (dle = dllsread(dls))
{
r = 0;
if (!only)
{
if (!(flags & LIST_LONG))
dll = 0;
else if (dll = dlopen(dle->path, RTLD_LAZY))
ver = dllversion(dll, NiL);
else
ver = 0;
switch (flags)
{
case LIST_BASE:
sfprintf(sfstdout, "%s\n", dle->name);
break;
case LIST_BASE|LIST_LONG:
sfprintf(sfstdout, "%14s %08lu\n", dle->name, ver);
break;
case LIST_PATH|LIST_LONG:
sfprintf(sfstdout, "%08lu %s\n", ver, dle->path);
break;
case LIST_PATH:
sfprintf(sfstdout, "%s\n", dle->path);
break;
case LIST_BASE|LIST_PATH:
sfprintf(sfstdout, "%14s %s\n", dle->name, dle->path);
break;
default:
sfprintf(sfstdout, "%14s %08lu %s\n", dle->name, ver, dle->path);
break;
}
if (*(syms = argv))
{
if (dll || (dll = dlopen(dle->path, RTLD_LAZY)))
{
do
{
sfprintf(sfstdout, " %14s ", *syms);
if (sym = dlllook(dll, *syms))
sfprintf(sfstdout, "%p\n", sym);
else
sfprintf(sfstdout, "%s\n", dlerror());
} while (*++syms);
dlclose(dll);
}
else
sfprintf(sfstdout, " %s\n", dlerror());
}
}
else if (dll = dlopen(dle->path, RTLD_LAZY))
{
i = 1;
for (syms = argv; *syms; syms++)
if (sym = dlllook(dll, *syms))
{
if (i)
{
i = 0;
switch (flags)
{
case LIST_BASE:
sfprintf(sfstdout, "%s\n", dle->name);
break;
case LIST_PATH:
sfprintf(sfstdout, "%s\n", dle->path);
break;
default:
sfprintf(sfstdout, "%14s %s\n", dle->name, dle->path);
break;
}
}
sfprintf(sfstdout, " %14s %p\n", *syms, sym);
}
dlclose(dll);
}
}
dllsclose(dls);
}
if (!r || !arg[0] || streq(arg[0], "-") || !arg[1] || streq(arg[1], "-"))
break;
arg[0] = 0;
}
}
return r || error_info.errors;
}