932     char peekbuf[4096] = { 0, };  in file_find_type()  local
938     if (BIO_buffer_peek(ctx->_.file.file, peekbuf, sizeof(peekbuf) - 1) > 0) {  in file_find_type()
939         peekbuf[sizeof(peekbuf) - 1] = '\0';  in file_find_type()
940         if (strstr(peekbuf, "-----BEGIN ") != NULL)  in file_find_type()
1350         unsigned char peekbuf[16] = { 0, };  in file_try_read_msblob()  local
1351         const unsigned char *p = peekbuf;  in file_try_read_msblob()
1353         if (BIO_buffer_peek(bp, peekbuf, sizeof(peekbuf)) <= 0)  in file_try_read_msblob()
1355         if (ossl_do_blob_header(&p, sizeof(peekbuf), &magic, &bitlen,  in file_try_read_msblob()
1385         unsigned char peekbuf[24] = { 0, };  in file_try_read_PVK()  local
1386         const unsigned char *p = peekbuf;  in file_try_read_PVK()
1388         if (BIO_buffer_peek(bp, peekbuf, sizeof(peekbuf)) <= 0)  in file_try_read_PVK()
1390         if (!ossl_do_PVK_header(&p, sizeof(peekbuf), 0, &saltlen, &keylen))  in file_try_read_PVK()