CORE: Add upcalls for BIO_gets() and BIO_puts()

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12410)

4 files changed, 35 insertions, 6 deletions

diff --git a/crypto/provider_core.c b/crypto/provider_core.c
index b6586f904e..79c330383c 100644
--- a/crypto/provider_core.c
+++ b/crypto/provider_core.c
@@ -1061,6 +1061,8 @@ static const OSSL_DISPATCH core_dispatch_[] = {
     { OSSL_FUNC_BIO_NEW_MEMBUF, (void (*)(void))BIO_new_mem_buf },
     { OSSL_FUNC_BIO_READ_EX, (void (*)(void))BIO_read_ex },
     { OSSL_FUNC_BIO_WRITE_EX, (void (*)(void))BIO_write_ex },
+    { OSSL_FUNC_BIO_GETS, (void (*)(void))BIO_gets },
+    { OSSL_FUNC_BIO_PUTS, (void (*)(void))BIO_puts },
     { OSSL_FUNC_BIO_FREE, (void (*)(void))BIO_free },
     { OSSL_FUNC_BIO_VPRINTF, (void (*)(void))BIO_vprintf },
     { OSSL_FUNC_BIO_VSNPRINTF, (void (*)(void))BIO_vsnprintf },
diff --git a/include/openssl/core_dispatch.h b/include/openssl/core_dispatch.h
index 8dba65b556..c3f6c88f46 100644
--- a/include/openssl/core_dispatch.h
+++ b/include/openssl/core_dispatch.h
@@ -135,6 +135,9 @@ OSSL_CORE_MAKE_FUNC(void,
 #define OSSL_FUNC_BIO_FREE                    44
 #define OSSL_FUNC_BIO_VPRINTF                 45
 #define OSSL_FUNC_BIO_VSNPRINTF               46
+#define OSSL_FUNC_BIO_PUTS                    47
+#define OSSL_FUNC_BIO_GETS                    48
+
 
 OSSL_CORE_MAKE_FUNC(OSSL_CORE_BIO *, BIO_new_file, (const char *filename,
                                                     const char *mode))
@@ -143,6 +146,8 @@ OSSL_CORE_MAKE_FUNC(int, BIO_read_ex, (OSSL_CORE_BIO *bio, void *data,
                                        size_t data_len, size_t *bytes_read))
 OSSL_CORE_MAKE_FUNC(int, BIO_write_ex, (OSSL_CORE_BIO *bio, const void *data,
                                         size_t data_len, size_t *written))
+OSSL_CORE_MAKE_FUNC(int, BIO_gets, (OSSL_CORE_BIO *bio, char *buf, int size))
+OSSL_CORE_MAKE_FUNC(int, BIO_puts, (OSSL_CORE_BIO *bio, const char *str))
 OSSL_CORE_MAKE_FUNC(int, BIO_free, (OSSL_CORE_BIO *bio))
 OSSL_CORE_MAKE_FUNC(int, BIO_vprintf, (OSSL_CORE_BIO *bio, const char *format,
                                        va_list args))
diff --git a/providers/common/bio_prov.c b/providers/common/bio_prov.c
index c193658c58..fc1f8b2b26 100644
--- a/providers/common/bio_prov.c
+++ b/providers/common/bio_prov.c
@@ -16,6 +16,8 @@ static OSSL_FUNC_BIO_new_file_fn *c_bio_new_file = NULL;
 static OSSL_FUNC_BIO_new_membuf_fn *c_bio_new_membuf = NULL;
 static OSSL_FUNC_BIO_read_ex_fn *c_bio_read_ex = NULL;
 static OSSL_FUNC_BIO_write_ex_fn *c_bio_write_ex = NULL;
+static OSSL_FUNC_BIO_gets_fn *c_bio_gets = NULL;
+static OSSL_FUNC_BIO_puts_fn *c_bio_puts = NULL;
 static OSSL_FUNC_BIO_free_fn *c_bio_free = NULL;
 static OSSL_FUNC_BIO_vprintf_fn *c_bio_vprintf = NULL;
 
@@ -39,6 +41,14 @@ int ossl_prov_bio_from_dispatch(const OSSL_DISPATCH *fns)
             if (c_bio_write_ex == NULL)
                 c_bio_write_ex = OSSL_FUNC_BIO_write_ex(fns);
             break;
+        case OSSL_FUNC_BIO_GETS:
+            if (c_bio_gets == NULL)
+                c_bio_gets = OSSL_FUNC_BIO_gets(fns);
+            break;
+        case OSSL_FUNC_BIO_PUTS:
+            if (c_bio_puts == NULL)
+                c_bio_puts = OSSL_FUNC_BIO_puts(fns);
+            break;
         case OSSL_FUNC_BIO_FREE:
             if (c_bio_free == NULL)
                 c_bio_free = OSSL_FUNC_BIO_free(fns);
@@ -83,6 +93,20 @@ int ossl_prov_bio_write_ex(OSSL_CORE_BIO *bio, const void *data, size_t data_len
     return c_bio_write_ex(bio, data, data_len, written);
 }
 
+int ossl_prov_bio_gets(OSSL_CORE_BIO *bio, char *buf, int size)
+{
+    if (c_bio_gets == NULL)
+        return -1;
+    return c_bio_gets(bio, buf, size);
+}
+
+int ossl_prov_bio_puts(OSSL_CORE_BIO *bio, const char *str)
+{
+    if (c_bio_puts == NULL)
+        return -1;
+    return c_bio_puts(bio, str);
+}
+
 int ossl_prov_bio_free(OSSL_CORE_BIO *bio)
 {
     if (c_bio_free == NULL)
@@ -134,16 +158,12 @@ static long bio_core_ctrl(BIO *bio, int cmd, long num, void *ptr)
 
 static int bio_core_gets(BIO *bio, char *buf, int size)
 {
-    /* We don't support this */
-    assert(0);
-    return -1;
+    return ossl_prov_bio_gets(BIO_get_data(bio), buf, size);
 }
 
 static int bio_core_puts(BIO *bio, const char *str)
 {
-    /* We don't support this */
-    assert(0);
-    return -1;
+    return ossl_prov_bio_puts(BIO_get_data(bio), str);
 }
 
 static int bio_core_new(BIO *bio)
diff --git a/providers/common/include/prov/bio.h b/providers/common/include/prov/bio.h
index c63f6b5da5..3cef89ce18 100644
--- a/providers/common/include/prov/bio.h
+++ b/providers/common/include/prov/bio.h
@@ -20,6 +20,8 @@ int ossl_prov_bio_read_ex(OSSL_CORE_BIO *bio, void *data, size_t data_len,
                           size_t *bytes_read);
 int ossl_prov_bio_write_ex(OSSL_CORE_BIO *bio, const void *data, size_t data_len,
                            size_t *written);
+int ossl_prov_bio_gets(OSSL_CORE_BIO *bio, char *buf, int size);
+int ossl_prov_bio_puts(OSSL_CORE_BIO *bio, const char *str);
 int ossl_prov_bio_free(OSSL_CORE_BIO *bio);
 int ossl_prov_bio_vprintf(OSSL_CORE_BIO *bio, const char *format, va_list ap);
 int ossl_prov_bio_printf(OSSL_CORE_BIO *bio, const char *format, ...);