void*
dllopen(const char* name, int mode)
{
void* dll;
Dllinfo_t* info;
char* olibpath;
char* path;
char* oenv;
char* nenv[2];
char* dir;
char* base;
int len;
if (!environ)
{
nenv[0] = nenv[1] = 0;
environ = nenv;
}
info = dllinfo();
oenv = environ[0];
olibpath = getenv(info->env);
if (base = strrchr(name, '/'))
{
dir = (char*)name;
len = ++base - dir;
}
else
{
dir = "./";
len = 2;
base = (char*)name;
}
path = sfprints("%-.*s%s%c%s=%-.*s%s%s", len, dir, base, 0, info->env, len, dir, olibpath ? ":" : "", olibpath ? olibpath : "");
environ[0] = path + strlen(path) + 1;
state.error = 0;
dll = dlopen(path, mode);
if (environ == nenv)
environ = 0;
else
environ[0] = oenv;
return dll;
}
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;
}
