[sr-dev] git:tmp/valgrind:557251cc: malloc_test: new function that over/underflows

Module: kamailio Branch: tmp/valgrind Commit: 557251cc19f600a2d4c48f8537cbf2fedaa5ca8d URL: https://github.com/kamailio/kamailio/commit/557251cc19f600a2d4c48f8537cbf2f… Author: Camille Oudot &lt;camille.oudot(a)orange.com&gt; Committer: Camille Oudot &lt;camille.oudot(a)orange.com&gt; Date: 2017-02-28T20:30:21+01:00 malloc_test: new function that over/underflows --- Modified: src/modules/malloc_test/malloc_test.c --- Diff: https://github.com/kamailio/kamailio/commit/557251cc19f600a2d4c48f8537cbf2f… Patch: https://github.com/kamailio/kamailio/commit/557251cc19f600a2d4c48f8537cbf2f… --- diff --git a/src/modules/malloc_test/malloc_test.c b/src/modules/malloc_test/malloc_test.c index ff5eb87..9b6bd73 100644 --- a/src/modules/malloc_test/malloc_test.c +++ b/src/modules/malloc_test/malloc_test.c @@ -39,6 +39,7 @@ MODULE_VERSION static int mt_mem_alloc_f(struct sip_msg*, char*,char*); static int mt_mem_free_f(struct sip_msg*, char*,char*); +static int mt_pkg_overflow_f(struct sip_msg*, char*,char*); static int mod_init(void); static void mod_destroy(void); @@ -48,6 +49,8 @@ static cmd_export_t cmds[]={ REQUEST_ROUTE|ONREPLY_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONSEND_ROUTE}, {"mt_mem_free", mt_mem_free_f, 1, fixup_var_int_1, REQUEST_ROUTE|ONREPLY_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONSEND_ROUTE}, + {"mt_pkg_overflow", mt_pkg_overflow_f, 0, 0, + REQUEST_ROUTE|ONREPLY_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|ONSEND_ROUTE}, {0, 0, 0, 0, 0} }; @@ -672,6 +675,25 @@ static int mt_mem_free_f(struct sip_msg* msg, char* sz, char* foo) return (freed==0)?1:freed; } +static int mt_pkg_overflow_f(struct sip_msg* msg, char *p1,char *p2) { + int i; + unsigned long *a; + + a = pkg_malloc(1024 * sizeof(unsigned long)); + + if (!a) { + LM_ERR("no more pkg\n"); + return -1; + } + + *(a - 1) = 0xdeadbeef; + *(a + 1024) = 0xdeadc0de; + for (i = 0 ; i < 1024; i++) { + a[i] = (long)i; + } + + return 1; +} /* RPC exports: */