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Best practices: Checking if variables are null before use it

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This commit is contained in:
Eldar Zaitov 2014-06-13 23:42:09 +04:00 committed by Felipe Zimmerle
parent bc390c6659
commit 207c85d9f7
1 changed files with 8 additions and 0 deletions
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8
nginx/modsecurity/ngx_http_modsecurity.c
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@ -217,6 +217,10 @@ ngx_pstrdup0(ngx_pool_t *pool, ngx_str_t *src)
{ {
u_char *dst; u_char *dst;
if (src == NULL) {
return NULL;
}
dst = ngx_pnalloc(pool, src->len + 1); dst = ngx_pnalloc(pool, src->len + 1);
if (dst == NULL) { if (dst == NULL) {
return NULL; return NULL;
@ -522,6 +526,10 @@ static int ngx_http_modsecurity_save_headers_in_visitor(void *data,
ngx_http_header_t *hh; ngx_http_header_t *hh;
ngx_http_core_main_conf_t *cmcf; ngx_http_core_main_conf_t *cmcf;
if (r == NULL) {
return 0;
}
h = ngx_list_push(&r->headers_in.headers); h = ngx_list_push(&r->headers_in.headers);
if (h == NULL) { if (h == NULL) {
return 0; return 0;