diff options
Diffstat (limited to 'crypto/dso/dso_dlfcn.c')
| -rw-r--r-- | crypto/dso/dso_dlfcn.c | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/crypto/dso/dso_dlfcn.c b/crypto/dso/dso_dlfcn.c index c5db28f356..cad1aedd4e 100644 --- a/crypto/dso/dso_dlfcn.c +++ b/crypto/dso/dso_dlfcn.c @@ -71,6 +71,9 @@ DSO_METHOD *DSO_METHOD_dlfcn(void) #include <dlfcn.h> #endif +/* Part of the hack in "dlfcn_load" ... */ +#define DSO_MAX_TRANSLATED_SIZE 256 + static int dlfcn_load(DSO *dso, const char *filename); static int dlfcn_unload(DSO *dso); static int dlfcn_bind(DSO *dso, const char *symname, void **symptr); @@ -79,6 +82,7 @@ static int dlfcn_unbind(DSO *dso, char *symname, void *symptr); static int dlfcn_init(DSO *dso); static int dlfcn_finish(DSO *dso); #endif +static long dlfcn_ctrl(DSO *dso, int cmd, long larg, void *parg); static DSO_METHOD dso_meth_dlfcn = { "OpenSSL 'dlfcn' shared library method", @@ -89,6 +93,7 @@ static DSO_METHOD dso_meth_dlfcn = { #if 0 NULL, /* unbind */ #endif + dlfcn_ctrl, NULL, /* init */ NULL /* finish */ }; @@ -105,8 +110,25 @@ DSO_METHOD *DSO_METHOD_dlfcn(void) static int dlfcn_load(DSO *dso, const char *filename) { void *ptr; + char translated[DSO_MAX_TRANSLATED_SIZE]; + int len; - ptr = dlopen(filename, RTLD_NOW); + /* NB: This is a hideous hack, but I'm not yet sure what + * to replace it with. This attempts to convert any filename, + * that looks like it has no path information, into a + * translated form, e. "blah" -> "libblah.so" */ + len = strlen(filename); + if((dso->flags & DSO_FLAG_NAME_TRANSLATION) && + (len + 6 < DSO_MAX_TRANSLATED_SIZE) && + (strstr(filename, "/") == NULL)) + { + sprintf(translated, "lib%s.so", filename); + ptr = dlopen(translated, RTLD_NOW); + } + else + { + ptr = dlopen(filename, RTLD_NOW); + } if(ptr == NULL) { DSOerr(DSO_F_DLFCN_LOAD,DSO_R_LOAD_FAILED); @@ -178,4 +200,28 @@ static int dlfcn_bind(DSO *dso, const char *symname, void **symptr) return(1); } +static long dlfcn_ctrl(DSO *dso, int cmd, long larg, void *parg) + { + if(dso == NULL) + { + DSOerr(DSO_F_DLFCN_CTRL,ERR_R_PASSED_NULL_PARAMETER); + return(-1); + } + switch(cmd) + { + case DSO_CTRL_GET_FLAGS: + return dso->flags; + case DSO_CTRL_SET_FLAGS: + dso->flags = (int)larg; + return(0); + case DSO_CTRL_OR_FLAGS: + dso->flags |= (int)larg; + return(0); + default: + break; + } + DSOerr(DSO_F_DLFCN_CTRL,DSO_R_UNKNOWN_COMMAND); + return(-1); + } + #endif /* DSO_DLFCN */ |