FS-2957 esl lib on windows fails to build

diff --git a/libs/esl/src/esl_buffer.c b/libs/esl/src/esl_buffer.c
index 8032169fe3fcbea0f63d8f3d33db2c11b45010da..7ba3d5265d64133624da56ef20f0e2c5449498cb 100644 (file)
--- a/libs/esl/src/esl_buffer.c
+++ b/libs/esl/src/esl_buffer.c
@@ -83,6 +83,9 @@ ESL_DECLARE(esl_size_t) esl_buffer_len(esl_buffer_t *buffer)
 {
 
        assert(buffer != NULL);
+       if (!buffer){
+               return (esl_size_t)NULL;
+       }
 
        return buffer->datalen;
 
@@ -92,7 +95,9 @@ ESL_DECLARE(esl_size_t) esl_buffer_len(esl_buffer_t *buffer)
 ESL_DECLARE(esl_size_t) esl_buffer_freespace(esl_buffer_t *buffer)
 {
        assert(buffer != NULL);
-
+       if (!buffer) {
+               return (esl_size_t)NULL;
+       }
 
        if (buffer->max_len) {
                return (esl_size_t) (buffer->max_len - buffer->used);
@@ -104,6 +109,9 @@ ESL_DECLARE(esl_size_t) esl_buffer_freespace(esl_buffer_t *buffer)
 ESL_DECLARE(esl_size_t) esl_buffer_inuse(esl_buffer_t *buffer)
 {
        assert(buffer != NULL);
+       if (!buffer) {
+               return (esl_size_t)NULL;
+       }
 
        return buffer->used;
 }
@@ -113,6 +121,9 @@ ESL_DECLARE(esl_size_t) esl_buffer_seek(esl_buffer_t *buffer, esl_size_t datalen
        esl_size_t reading = 0;
 
        assert(buffer != NULL);
+       if (!buffer) {
+               return (esl_size_t)NULL;
+       }
 
        if (buffer->used < 1) {
                buffer->used = 0;
@@ -134,6 +145,9 @@ ESL_DECLARE(esl_size_t) esl_buffer_toss(esl_buffer_t *buffer, esl_size_t datalen
        esl_size_t reading = 0;
 
        assert(buffer != NULL);
+       if (!buffer) {
+               return (esl_size_t)NULL;
+       }
 
        if (buffer->used < 1) {
                buffer->used = 0;
@@ -175,6 +189,9 @@ ESL_DECLARE(esl_size_t) esl_buffer_read(esl_buffer_t *buffer, void *data, esl_si
        esl_size_t reading = 0;
 
        assert(buffer != NULL);
+       if (!buffer) {
+               return (esl_size_t)NULL;
+       }
        assert(data != NULL);
 
 
@@ -252,6 +269,9 @@ ESL_DECLARE(esl_size_t) esl_buffer_write(esl_buffer_t *buffer, const void *data,
        esl_size_t freespace, actual_freespace;
 
        assert(buffer != NULL);
+       if (!buffer) {
+               return (esl_size_t)NULL;
+       }
        assert(data != NULL);
        assert(buffer->data != NULL);
 
@@ -313,6 +333,9 @@ ESL_DECLARE(esl_size_t) esl_buffer_write(esl_buffer_t *buffer, const void *data,
 ESL_DECLARE(void) esl_buffer_zero(esl_buffer_t *buffer)
 {
        assert(buffer != NULL);
+       if (!buffer) {
+               return;
+       }
        assert(buffer->data != NULL);
 
        buffer->used = 0;