tor/scripts/coccinelle/calloc.cocci

// Use calloc or realloc as appropriate instead of multiply-and-alloc

@malloc_to_calloc@
identifier f =~ "(tor_malloc|tor_malloc_zero)";
expression a;
constant b;
@@
- f(a * b)
+ tor_calloc(a, b)

@calloc_arg_order@
expression a;
type t;
@@
- tor_calloc(sizeof(t), a)
+ tor_calloc(a, sizeof(t))

@realloc_to_reallocarray@
expression a, b;
expression p;
@@
- tor_realloc(p, a * b)
+ tor_reallocarray(p, a, b)
Add a simple coccinelle script to replace malloc->calloc Coccinelle is a semantic patching tool that can automatically change C code via semantic patching. This script also replaces realloc with reallocarray as appropriate. 2014-08-13 16:31:31 +02:00			`// Use calloc or realloc as appropriate instead of multiply-and-alloc`

			`@malloc_to_calloc@`
Refactor the calloc semantic patch. This does not change its effects. 2014-10-19 18:18:31 +02:00			`identifier f =~ "(tor_malloc\|tor_malloc_zero)";`
The second argument to tor_calloc should be a constant. Just like the conventional calloc. 2014-10-19 18:20:36 +02:00			`expression a;`
			`constant b;`
Add a simple coccinelle script to replace malloc->calloc Coccinelle is a semantic patching tool that can automatically change C code via semantic patching. This script also replaces realloc with reallocarray as appropriate. 2014-08-13 16:31:31 +02:00			`@@`
Refactor the calloc semantic patch. This does not change its effects. 2014-10-19 18:18:31 +02:00			`- f(a * b)`
Add a simple coccinelle script to replace malloc->calloc Coccinelle is a semantic patching tool that can automatically change C code via semantic patching. This script also replaces realloc with reallocarray as appropriate. 2014-08-13 16:31:31 +02:00			`+ tor_calloc(a, b)`

Add a rule to the calloc semantic patch for argument ordering. 2014-10-19 18:36:46 +02:00			`@calloc_arg_order@`
			`expression a;`
			`type t;`
			`@@`
			`- tor_calloc(sizeof(t), a)`
			`+ tor_calloc(a, sizeof(t))`

Add a simple coccinelle script to replace malloc->calloc Coccinelle is a semantic patching tool that can automatically change C code via semantic patching. This script also replaces realloc with reallocarray as appropriate. 2014-08-13 16:31:31 +02:00			`@realloc_to_reallocarray@`
			`expression a, b;`
			`expression p;`
			`@@`
			`- tor_realloc(p, a * b)`
			`+ tor_reallocarray(p, a, b)`