diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/dso/dso_dl.c')
| -rw-r--r-- | Cryptlib/OpenSSL/crypto/dso/dso_dl.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/Cryptlib/OpenSSL/crypto/dso/dso_dl.c b/Cryptlib/OpenSSL/crypto/dso/dso_dl.c index 25c9c133..0087ac54 100644 --- a/Cryptlib/OpenSSL/crypto/dso/dso_dl.c +++ b/Cryptlib/OpenSSL/crypto/dso/dso_dl.c @@ -87,6 +87,8 @@ static int dl_ctrl(DSO *dso, int cmd, long larg, void *parg); static char *dl_name_converter(DSO *dso, const char *filename); static char *dl_merger(DSO *dso, const char *filespec1, const char *filespec2); +static int dl_pathbyaddr(void *addr, char *path, int sz); +static void *dl_globallookup(const char *name); static DSO_METHOD dso_meth_dl = { "OpenSSL 'dl' shared library method", @@ -103,7 +105,9 @@ static DSO_METHOD dso_meth_dl = { dl_name_converter, dl_merger, NULL, /* init */ - NULL /* finish */ + NULL, /* finish */ + dl_pathbyaddr, + dl_globallookup }; DSO_METHOD *DSO_METHOD_dl(void) @@ -334,4 +338,43 @@ static char *dl_name_converter(DSO *dso, const char *filename) return (translated); } +static int dl_pathbyaddr(void *addr, char *path, int sz) +{ + struct shl_descriptor inf; + int i, len; + + if (addr == NULL) { + union { + int (*f) (void *, char *, int); + void *p; + } t = { + dl_pathbyaddr + }; + addr = t.p; + } + + for (i = -1; shl_get_r(i, &inf) == 0; i++) { + if (((size_t)addr >= inf.tstart && (size_t)addr < inf.tend) || + ((size_t)addr >= inf.dstart && (size_t)addr < inf.dend)) { + len = (int)strlen(inf.filename); + if (sz <= 0) + return len + 1; + if (len >= sz) + len = sz - 1; + memcpy(path, inf.filename, len); + path[len++] = 0; + return len; + } + } + + return -1; +} + +static void *dl_globallookup(const char *name) +{ + void *ret; + shl_t h = NULL; + + return shl_findsym(&h, name, TYPE_UNDEFINED, &ret) ? NULL : ret; +} #endif /* DSO_DL */ |