mesa: use strdup() instead of _mesa_strdup()

We were already using strdup() in various places in Mesa.  Get rid
of the _mesa_strdup() wrapper.  All the callers pass a non-NULL
argument so the NULL check isn't needed either.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

src/mesa/main/imports.c

@@ -481,24 +481,6 @@ _mesa_half_to_float(GLhalfARB val)
 /** \name String */
 /*@{*/
 
-/**
- * Implemented using malloc() and strcpy.
- * Note that NULL is handled accordingly.
- */
-char *
-_mesa_strdup( const char *s )
-{
-   if (s) {
-      size_t l = strlen(s);
-      char *s2 = malloc(l + 1);
-      if (s2)
-         strcpy(s2, s);
-      return s2;
-   }
-   else {
-      return NULL;
-   }
-}
 
 /** Compute simple checksum/hash for a string */
 unsigned int

src/mesa/main/imports.h

@@ -448,9 +448,6 @@ _mesa_half_is_negative(GLhalfARB h)
    return h & 0x8000;
 }
 
-extern char *
-_mesa_strdup( const char *s );
-
 extern unsigned int
 _mesa_str_checksum(const char *str);
 

src/mesa/main/objectlabel.c

@@ -76,7 +76,7 @@ set_label(struct gl_context *ctx, char **labelPtr, const char *label,
                 MAX_LABEL_LENGTH);
 
          /* null-terminated string */
-         *labelPtr = _mesa_strdup(label);
+         *labelPtr = strdup(label);
       }
    }
 }

src/mesa/main/shaderapi.c

@@ -1460,7 +1460,7 @@ read_shader(const char *fname)
 
    fclose(f);
 
-   shader = _mesa_strdup(buffer);
+   shader = strdup(buffer);
    free(buffer);
 
    return shader;

src/mesa/main/transformfeedback.c

@@ -762,7 +762,7 @@ _mesa_TransformFeedbackVaryings(GLuint program, GLsizei count,
 
    /* Save the new names and the count */
    for (i = 0; i < count; i++) {
-      shProg->TransformFeedback.VaryingNames[i] = _mesa_strdup(varyings[i]);
+      shProg->TransformFeedback.VaryingNames[i] = strdup(varyings[i]);
    }
    shProg->TransformFeedback.NumVarying = count;
 

src/mesa/program/prog_instruction.c

@@ -89,7 +89,7 @@ _mesa_copy_instructions(struct prog_instruction *dest,
    memcpy(dest, src, n * sizeof(struct prog_instruction));
    for (i = 0; i < n; i++) {
       if (src[i].Comment)
-         dest[i].Comment = _mesa_strdup(src[i].Comment);
+         dest[i].Comment = strdup(src[i].Comment);
    }
    return dest;
 }

src/mesa/program/prog_parameter.c

@@ -148,7 +148,7 @@ _mesa_add_parameter(struct gl_program_parameter_list *paramList,
 
       for (i = 0; i < sz4; i++) {
          struct gl_program_parameter *p = paramList->Parameters + oldNum + i;
-         p->Name = name ? _mesa_strdup(name) : NULL;
+         p->Name = name ? strdup(name) : NULL;
          p->Type = type;
          p->Size = size;
          p->DataType = datatype;

src/mesa/program/prog_statevars.c

@@ -1045,7 +1045,7 @@ _mesa_program_state_string(const gl_state_index state[STATE_LENGTH])
       break;
    }
 
-   return _mesa_strdup(str);
+   return strdup(str);
 }
 
 

src/mesa/program/program.c

@@ -79,7 +79,7 @@ _mesa_init_program(struct gl_context *ctx)
    STATIC_ASSERT(NUM_TEXTURE_TARGETS <= (1 << 4));
 
    ctx->Program.ErrorPos = -1;
-   ctx->Program.ErrorString = _mesa_strdup("");
+   ctx->Program.ErrorString = strdup("");
 
    ctx->VertexProgram.Enabled = GL_FALSE;
    ctx->VertexProgram.PointSizeEnabled =
@@ -176,7 +176,7 @@ _mesa_set_program_error(struct gl_context *ctx, GLint pos, const char *string)
    free((void *) ctx->Program.ErrorString);
    if (!string)
       string = "";
-   ctx->Program.ErrorString = _mesa_strdup(string);
+   ctx->Program.ErrorString = strdup(string);
 }
 
 
@@ -483,7 +483,7 @@ _mesa_clone_program(struct gl_context *ctx, const struct gl_program *prog)
    assert(clone->Target == prog->Target);
    assert(clone->RefCount == 1);
 
-   clone->String = (GLubyte *) _mesa_strdup((char *) prog->String);
+   clone->String = (GLubyte *) strdup((char *) prog->String);
    clone->Format = prog->Format;
    clone->Instructions = _mesa_alloc_instructions(prog->NumInstructions);
    if (!clone->Instructions) {