mirror of
https://github.com/cesanta/mongoose.git
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Using mg_bzero to cleanup memory in mg_close_conn()
This commit is contained in:
cpq
parent
a04c94444e
commit
7ecbbc517d
551
mongoose.c
551
mongoose.c
@ -2366,13 +2366,6 @@ struct mg_connection *mg_http_listen(struct mg_mgr *mgr, const char *url,
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// Not using memset for zeroing memory, cause it can be dropped by compiler
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// See https://github.com/cesanta/mongoose/pull/1265
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static void zeromem(volatile unsigned char *buf, size_t len) {
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if (buf != NULL) {
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while (len--) *buf++ = 0;
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}
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}
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static size_t roundup(size_t size, size_t align) {
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return align == 0 ? size : (size + align - 1) / align * align;
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@ -2382,7 +2375,7 @@ int mg_iobuf_resize(struct mg_iobuf *io, size_t new_size) {
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int ok = 1;
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new_size = roundup(new_size, io->align);
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if (new_size == 0) {
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zeromem(io->buf, io->size);
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mg_bzero(io->buf, io->size);
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free(io->buf);
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io->buf = NULL;
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io->len = io->size = 0;
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@ -2393,7 +2386,7 @@ int mg_iobuf_resize(struct mg_iobuf *io, size_t new_size) {
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if (p != NULL) {
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size_t len = new_size < io->len ? new_size : io->len;
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if (len > 0 && io->buf != NULL) memmove(p, io->buf, len);
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zeromem(io->buf, io->size);
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mg_bzero(io->buf, io->size);
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free(io->buf);
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io->buf = (unsigned char *) p;
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io->size = new_size;
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@ -2428,7 +2421,7 @@ size_t mg_iobuf_del(struct mg_iobuf *io, size_t ofs, size_t len) {
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if (ofs > io->len) ofs = io->len;
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if (ofs + len > io->len) len = io->len - ofs;
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if (io->buf) memmove(io->buf + ofs, io->buf + ofs + len, io->len - ofs - len);
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if (io->buf) zeromem(io->buf + io->len - len, len);
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if (io->buf) mg_bzero(io->buf + io->len - len, len);
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io->len -= len;
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return len;
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}
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@ -3564,6 +3557,270 @@ struct mg_connection *mg_mqtt_listen(struct mg_mgr *mgr, const char *url,
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return c;
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}
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#ifdef MG_ENABLE_LINES
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#line 1 "src/net.c"
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#endif
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size_t mg_vprintf(struct mg_connection *c, const char *fmt, va_list *ap) {
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size_t old = c->send.len;
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mg_vxprintf(mg_pfn_iobuf, &c->send, fmt, ap);
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return c->send.len - old;
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}
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size_t mg_printf(struct mg_connection *c, const char *fmt, ...) {
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size_t len = 0;
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va_list ap;
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va_start(ap, fmt);
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len = mg_vprintf(c, fmt, &ap);
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va_end(ap);
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return len;
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}
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static bool mg_atonl(struct mg_str str, struct mg_addr *addr) {
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uint32_t localhost = mg_htonl(0x7f000001);
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if (mg_vcasecmp(&str, "localhost") != 0) return false;
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memcpy(addr->ip, &localhost, sizeof(uint32_t));
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addr->is_ip6 = false;
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return true;
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}
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static bool mg_atone(struct mg_str str, struct mg_addr *addr) {
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if (str.len > 0) return false;
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memset(addr->ip, 0, sizeof(addr->ip));
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addr->is_ip6 = false;
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return true;
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}
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static bool mg_aton4(struct mg_str str, struct mg_addr *addr) {
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uint8_t data[4] = {0, 0, 0, 0};
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size_t i, num_dots = 0;
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for (i = 0; i < str.len; i++) {
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if (str.ptr[i] >= '0' && str.ptr[i] <= '9') {
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int octet = data[num_dots] * 10 + (str.ptr[i] - '0');
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if (octet > 255) return false;
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data[num_dots] = (uint8_t) octet;
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} else if (str.ptr[i] == '.') {
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if (num_dots >= 3 || i == 0 || str.ptr[i - 1] == '.') return false;
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num_dots++;
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} else {
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return false;
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}
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}
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if (num_dots != 3 || str.ptr[i - 1] == '.') return false;
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memcpy(&addr->ip, data, sizeof(data));
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addr->is_ip6 = false;
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return true;
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}
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static bool mg_v4mapped(struct mg_str str, struct mg_addr *addr) {
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int i;
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uint32_t ipv4;
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if (str.len < 14) return false;
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if (str.ptr[0] != ':' || str.ptr[1] != ':' || str.ptr[6] != ':') return false;
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for (i = 2; i < 6; i++) {
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if (str.ptr[i] != 'f' && str.ptr[i] != 'F') return false;
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}
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// struct mg_str s = mg_str_n(&str.ptr[7], str.len - 7);
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if (!mg_aton4(mg_str_n(&str.ptr[7], str.len - 7), addr)) return false;
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memcpy(&ipv4, addr->ip, sizeof(ipv4));
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memset(addr->ip, 0, sizeof(addr->ip));
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addr->ip[10] = addr->ip[11] = 255;
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memcpy(&addr->ip[12], &ipv4, 4);
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addr->is_ip6 = true;
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return true;
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}
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static bool mg_aton6(struct mg_str str, struct mg_addr *addr) {
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size_t i, j = 0, n = 0, dc = 42;
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if (str.len > 2 && str.ptr[0] == '[') str.ptr++, str.len -= 2;
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if (mg_v4mapped(str, addr)) return true;
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for (i = 0; i < str.len; i++) {
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if ((str.ptr[i] >= '0' && str.ptr[i] <= '9') ||
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(str.ptr[i] >= 'a' && str.ptr[i] <= 'f') ||
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(str.ptr[i] >= 'A' && str.ptr[i] <= 'F')) {
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unsigned long val;
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if (i > j + 3) return false;
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// MG_DEBUG(("%zu %zu [%.*s]", i, j, (int) (i - j + 1), &str.ptr[j]));
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val = mg_unhexn(&str.ptr[j], i - j + 1);
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addr->ip[n] = (uint8_t) ((val >> 8) & 255);
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addr->ip[n + 1] = (uint8_t) (val & 255);
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} else if (str.ptr[i] == ':') {
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j = i + 1;
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if (i > 0 && str.ptr[i - 1] == ':') {
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dc = n; // Double colon
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if (i > 1 && str.ptr[i - 2] == ':') return false;
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} else if (i > 0) {
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n += 2;
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}
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if (n > 14) return false;
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addr->ip[n] = addr->ip[n + 1] = 0; // For trailing ::
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} else {
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return false;
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}
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}
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if (n < 14 && dc == 42) return false;
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if (n < 14) {
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memmove(&addr->ip[dc + (14 - n)], &addr->ip[dc], n - dc + 2);
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memset(&addr->ip[dc], 0, 14 - n);
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}
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addr->is_ip6 = true;
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return true;
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}
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bool mg_aton(struct mg_str str, struct mg_addr *addr) {
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// MG_INFO(("[%.*s]", (int) str.len, str.ptr));
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return mg_atone(str, addr) || mg_atonl(str, addr) || mg_aton4(str, addr) ||
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mg_aton6(str, addr);
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}
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struct mg_connection *mg_alloc_conn(struct mg_mgr *mgr) {
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struct mg_connection *c =
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(struct mg_connection *) calloc(1, sizeof(*c) + mgr->extraconnsize);
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if (c != NULL) {
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c->mgr = mgr;
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c->send.align = c->recv.align = MG_IO_SIZE;
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c->id = ++mgr->nextid;
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}
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return c;
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}
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void mg_close_conn(struct mg_connection *c) {
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mg_resolve_cancel(c); // Close any pending DNS query
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LIST_DELETE(struct mg_connection, &c->mgr->conns, c);
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if (c == c->mgr->dns4.c) c->mgr->dns4.c = NULL;
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if (c == c->mgr->dns6.c) c->mgr->dns6.c = NULL;
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// Order of operations is important. `MG_EV_CLOSE` event must be fired
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// before we deallocate received data, see #1331
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mg_call(c, MG_EV_CLOSE, NULL);
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MG_DEBUG(("%lu %p closed", c->id, c->fd));
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mg_tls_free(c);
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mg_iobuf_free(&c->recv);
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mg_iobuf_free(&c->send);
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mg_bzero((unsigned char *) c, sizeof(*c));
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free(c);
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}
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struct mg_connection *mg_connect(struct mg_mgr *mgr, const char *url,
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mg_event_handler_t fn, void *fn_data) {
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struct mg_connection *c = NULL;
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if (url == NULL || url[0] == '\0') {
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MG_ERROR(("null url"));
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} else if ((c = mg_alloc_conn(mgr)) == NULL) {
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MG_ERROR(("OOM"));
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} else {
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LIST_ADD_HEAD(struct mg_connection, &mgr->conns, c);
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c->is_udp = (strncmp(url, "udp:", 4) == 0);
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c->fd = (void *) (size_t) MG_INVALID_SOCKET;
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c->fn = fn;
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c->is_client = true;
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c->fn_data = fn_data;
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MG_DEBUG(("%lu %p %s", c->id, c->fd, url));
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mg_call(c, MG_EV_OPEN, (void *) url);
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mg_resolve(c, url);
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if (mg_url_is_ssl(url)) {
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struct mg_str host = mg_url_host(url);
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mg_tls_init(c, host);
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}
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}
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return c;
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}
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struct mg_connection *mg_listen(struct mg_mgr *mgr, const char *url,
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mg_event_handler_t fn, void *fn_data) {
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struct mg_connection *c = NULL;
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if ((c = mg_alloc_conn(mgr)) == NULL) {
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MG_ERROR(("OOM %s", url));
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} else if (!mg_open_listener(c, url)) {
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MG_ERROR(("Failed: %s, errno %d", url, errno));
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free(c);
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c = NULL;
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} else {
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c->is_listening = 1;
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c->is_udp = strncmp(url, "udp:", 4) == 0;
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LIST_ADD_HEAD(struct mg_connection, &mgr->conns, c);
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c->fn = fn;
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c->fn_data = fn_data;
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mg_call(c, MG_EV_OPEN, NULL);
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if (mg_url_is_ssl(url)) c->is_tls = 1; // Accepted connection must
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MG_DEBUG(("%lu %p %s", c->id, c->fd, url));
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}
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return c;
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}
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struct mg_connection *mg_wrapfd(struct mg_mgr *mgr, int fd,
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mg_event_handler_t fn, void *fn_data) {
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struct mg_connection *c = mg_alloc_conn(mgr);
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if (c != NULL) {
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c->fd = (void *) (size_t) fd;
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c->fn = fn;
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c->fn_data = fn_data;
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MG_EPOLL_ADD(c);
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mg_call(c, MG_EV_OPEN, NULL);
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LIST_ADD_HEAD(struct mg_connection, &mgr->conns, c);
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}
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return c;
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}
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struct mg_timer *mg_timer_add(struct mg_mgr *mgr, uint64_t milliseconds,
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unsigned flags, void (*fn)(void *), void *arg) {
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struct mg_timer *t = (struct mg_timer *) calloc(1, sizeof(*t));
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if (t != NULL) {
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mg_timer_init(&mgr->timers, t, milliseconds, flags, fn, arg);
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t->id = mgr->timerid++;
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}
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return t;
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}
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void mg_mgr_free(struct mg_mgr *mgr) {
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struct mg_connection *c;
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struct mg_timer *tmp, *t = mgr->timers;
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while (t != NULL) tmp = t->next, free(t), t = tmp;
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mgr->timers = NULL; // Important. Next call to poll won't touch timers
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for (c = mgr->conns; c != NULL; c = c->next) c->is_closing = 1;
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mg_mgr_poll(mgr, 0);
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#if MG_ENABLE_FREERTOS_TCP
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FreeRTOS_DeleteSocketSet(mgr->ss);
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#endif
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MG_DEBUG(("All connections closed"));
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#if MG_ENABLE_EPOLL
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if (mgr->epoll_fd >= 0) close(mgr->epoll_fd), mgr->epoll_fd = -1;
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#endif
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mg_tls_ctx_free(mgr);
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}
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void mg_mgr_init(struct mg_mgr *mgr) {
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memset(mgr, 0, sizeof(*mgr));
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#if MG_ENABLE_EPOLL
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if ((mgr->epoll_fd = epoll_create1(EPOLL_CLOEXEC)) < 0)
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MG_ERROR(("epoll_create1 errno %d", errno));
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#else
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mgr->epoll_fd = -1;
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#endif
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#if MG_ARCH == MG_ARCH_WIN32 && MG_ENABLE_WINSOCK
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// clang-format off
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{ WSADATA data; WSAStartup(MAKEWORD(2, 2), &data); }
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// clang-format on
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#elif MG_ENABLE_FREERTOS_TCP
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mgr->ss = FreeRTOS_CreateSocketSet();
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#elif defined(__unix) || defined(__unix__) || defined(__APPLE__)
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// Ignore SIGPIPE signal, so if client cancels the request, it
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// won't kill the whole process.
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signal(SIGPIPE, SIG_IGN);
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#endif
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mgr->dnstimeout = 3000;
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mgr->dns4.url = "udp://8.8.8.8:53";
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mgr->dns6.url = "udp://[2001:4860:4860::8888]:53";
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}
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#ifdef MG_ENABLE_LINES
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#line 1 "src/net_builtin.c"
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#endif
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@ -4683,270 +4940,6 @@ bool mg_send(struct mg_connection *c, const void *buf, size_t len) {
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}
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#endif // MG_ENABLE_TCPIP
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#ifdef MG_ENABLE_LINES
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#line 1 "src/net.c"
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#endif
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size_t mg_vprintf(struct mg_connection *c, const char *fmt, va_list *ap) {
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size_t old = c->send.len;
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mg_vxprintf(mg_pfn_iobuf, &c->send, fmt, ap);
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return c->send.len - old;
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}
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size_t mg_printf(struct mg_connection *c, const char *fmt, ...) {
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size_t len = 0;
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va_list ap;
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va_start(ap, fmt);
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len = mg_vprintf(c, fmt, &ap);
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va_end(ap);
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return len;
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}
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static bool mg_atonl(struct mg_str str, struct mg_addr *addr) {
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uint32_t localhost = mg_htonl(0x7f000001);
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if (mg_vcasecmp(&str, "localhost") != 0) return false;
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memcpy(addr->ip, &localhost, sizeof(uint32_t));
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addr->is_ip6 = false;
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return true;
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}
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static bool mg_atone(struct mg_str str, struct mg_addr *addr) {
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if (str.len > 0) return false;
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memset(addr->ip, 0, sizeof(addr->ip));
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addr->is_ip6 = false;
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return true;
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}
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static bool mg_aton4(struct mg_str str, struct mg_addr *addr) {
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uint8_t data[4] = {0, 0, 0, 0};
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size_t i, num_dots = 0;
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for (i = 0; i < str.len; i++) {
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if (str.ptr[i] >= '0' && str.ptr[i] <= '9') {
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int octet = data[num_dots] * 10 + (str.ptr[i] - '0');
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if (octet > 255) return false;
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data[num_dots] = (uint8_t) octet;
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} else if (str.ptr[i] == '.') {
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if (num_dots >= 3 || i == 0 || str.ptr[i - 1] == '.') return false;
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num_dots++;
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} else {
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return false;
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}
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}
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if (num_dots != 3 || str.ptr[i - 1] == '.') return false;
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memcpy(&addr->ip, data, sizeof(data));
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addr->is_ip6 = false;
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return true;
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}
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static bool mg_v4mapped(struct mg_str str, struct mg_addr *addr) {
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int i;
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uint32_t ipv4;
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if (str.len < 14) return false;
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if (str.ptr[0] != ':' || str.ptr[1] != ':' || str.ptr[6] != ':') return false;
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for (i = 2; i < 6; i++) {
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if (str.ptr[i] != 'f' && str.ptr[i] != 'F') return false;
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}
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// struct mg_str s = mg_str_n(&str.ptr[7], str.len - 7);
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if (!mg_aton4(mg_str_n(&str.ptr[7], str.len - 7), addr)) return false;
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memcpy(&ipv4, addr->ip, sizeof(ipv4));
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memset(addr->ip, 0, sizeof(addr->ip));
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addr->ip[10] = addr->ip[11] = 255;
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memcpy(&addr->ip[12], &ipv4, 4);
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addr->is_ip6 = true;
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return true;
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}
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static bool mg_aton6(struct mg_str str, struct mg_addr *addr) {
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size_t i, j = 0, n = 0, dc = 42;
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if (str.len > 2 && str.ptr[0] == '[') str.ptr++, str.len -= 2;
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if (mg_v4mapped(str, addr)) return true;
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for (i = 0; i < str.len; i++) {
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if ((str.ptr[i] >= '0' && str.ptr[i] <= '9') ||
|
||||
(str.ptr[i] >= 'a' && str.ptr[i] <= 'f') ||
|
||||
(str.ptr[i] >= 'A' && str.ptr[i] <= 'F')) {
|
||||
unsigned long val;
|
||||
if (i > j + 3) return false;
|
||||
// MG_DEBUG(("%zu %zu [%.*s]", i, j, (int) (i - j + 1), &str.ptr[j]));
|
||||
val = mg_unhexn(&str.ptr[j], i - j + 1);
|
||||
addr->ip[n] = (uint8_t) ((val >> 8) & 255);
|
||||
addr->ip[n + 1] = (uint8_t) (val & 255);
|
||||
} else if (str.ptr[i] == ':') {
|
||||
j = i + 1;
|
||||
if (i > 0 && str.ptr[i - 1] == ':') {
|
||||
dc = n; // Double colon
|
||||
if (i > 1 && str.ptr[i - 2] == ':') return false;
|
||||
} else if (i > 0) {
|
||||
n += 2;
|
||||
}
|
||||
if (n > 14) return false;
|
||||
addr->ip[n] = addr->ip[n + 1] = 0; // For trailing ::
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
if (n < 14 && dc == 42) return false;
|
||||
if (n < 14) {
|
||||
memmove(&addr->ip[dc + (14 - n)], &addr->ip[dc], n - dc + 2);
|
||||
memset(&addr->ip[dc], 0, 14 - n);
|
||||
}
|
||||
|
||||
addr->is_ip6 = true;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool mg_aton(struct mg_str str, struct mg_addr *addr) {
|
||||
// MG_INFO(("[%.*s]", (int) str.len, str.ptr));
|
||||
return mg_atone(str, addr) || mg_atonl(str, addr) || mg_aton4(str, addr) ||
|
||||
mg_aton6(str, addr);
|
||||
}
|
||||
|
||||
struct mg_connection *mg_alloc_conn(struct mg_mgr *mgr) {
|
||||
struct mg_connection *c =
|
||||
(struct mg_connection *) calloc(1, sizeof(*c) + mgr->extraconnsize);
|
||||
if (c != NULL) {
|
||||
c->mgr = mgr;
|
||||
c->send.align = c->recv.align = MG_IO_SIZE;
|
||||
c->id = ++mgr->nextid;
|
||||
}
|
||||
return c;
|
||||
}
|
||||
|
||||
void mg_close_conn(struct mg_connection *c) {
|
||||
mg_resolve_cancel(c); // Close any pending DNS query
|
||||
LIST_DELETE(struct mg_connection, &c->mgr->conns, c);
|
||||
if (c == c->mgr->dns4.c) c->mgr->dns4.c = NULL;
|
||||
if (c == c->mgr->dns6.c) c->mgr->dns6.c = NULL;
|
||||
// Order of operations is important. `MG_EV_CLOSE` event must be fired
|
||||
// before we deallocate received data, see #1331
|
||||
mg_call(c, MG_EV_CLOSE, NULL);
|
||||
MG_DEBUG(("%lu %p closed", c->id, c->fd));
|
||||
|
||||
mg_tls_free(c);
|
||||
mg_iobuf_free(&c->recv);
|
||||
mg_iobuf_free(&c->send);
|
||||
memset(c, 0, sizeof(*c));
|
||||
free(c);
|
||||
}
|
||||
|
||||
struct mg_connection *mg_connect(struct mg_mgr *mgr, const char *url,
|
||||
mg_event_handler_t fn, void *fn_data) {
|
||||
struct mg_connection *c = NULL;
|
||||
if (url == NULL || url[0] == '\0') {
|
||||
MG_ERROR(("null url"));
|
||||
} else if ((c = mg_alloc_conn(mgr)) == NULL) {
|
||||
MG_ERROR(("OOM"));
|
||||
} else {
|
||||
LIST_ADD_HEAD(struct mg_connection, &mgr->conns, c);
|
||||
c->is_udp = (strncmp(url, "udp:", 4) == 0);
|
||||
c->fd = (void *) (size_t) MG_INVALID_SOCKET;
|
||||
c->fn = fn;
|
||||
c->is_client = true;
|
||||
c->fn_data = fn_data;
|
||||
MG_DEBUG(("%lu %p %s", c->id, c->fd, url));
|
||||
mg_call(c, MG_EV_OPEN, (void *) url);
|
||||
mg_resolve(c, url);
|
||||
if (mg_url_is_ssl(url)) {
|
||||
struct mg_str host = mg_url_host(url);
|
||||
mg_tls_init(c, host);
|
||||
}
|
||||
}
|
||||
return c;
|
||||
}
|
||||
|
||||
struct mg_connection *mg_listen(struct mg_mgr *mgr, const char *url,
|
||||
mg_event_handler_t fn, void *fn_data) {
|
||||
struct mg_connection *c = NULL;
|
||||
if ((c = mg_alloc_conn(mgr)) == NULL) {
|
||||
MG_ERROR(("OOM %s", url));
|
||||
} else if (!mg_open_listener(c, url)) {
|
||||
MG_ERROR(("Failed: %s, errno %d", url, errno));
|
||||
free(c);
|
||||
c = NULL;
|
||||
} else {
|
||||
c->is_listening = 1;
|
||||
c->is_udp = strncmp(url, "udp:", 4) == 0;
|
||||
LIST_ADD_HEAD(struct mg_connection, &mgr->conns, c);
|
||||
c->fn = fn;
|
||||
c->fn_data = fn_data;
|
||||
mg_call(c, MG_EV_OPEN, NULL);
|
||||
if (mg_url_is_ssl(url)) c->is_tls = 1; // Accepted connection must
|
||||
MG_DEBUG(("%lu %p %s", c->id, c->fd, url));
|
||||
}
|
||||
return c;
|
||||
}
|
||||
|
||||
struct mg_connection *mg_wrapfd(struct mg_mgr *mgr, int fd,
|
||||
mg_event_handler_t fn, void *fn_data) {
|
||||
struct mg_connection *c = mg_alloc_conn(mgr);
|
||||
if (c != NULL) {
|
||||
c->fd = (void *) (size_t) fd;
|
||||
c->fn = fn;
|
||||
c->fn_data = fn_data;
|
||||
MG_EPOLL_ADD(c);
|
||||
mg_call(c, MG_EV_OPEN, NULL);
|
||||
LIST_ADD_HEAD(struct mg_connection, &mgr->conns, c);
|
||||
}
|
||||
return c;
|
||||
}
|
||||
|
||||
struct mg_timer *mg_timer_add(struct mg_mgr *mgr, uint64_t milliseconds,
|
||||
unsigned flags, void (*fn)(void *), void *arg) {
|
||||
struct mg_timer *t = (struct mg_timer *) calloc(1, sizeof(*t));
|
||||
if (t != NULL) {
|
||||
mg_timer_init(&mgr->timers, t, milliseconds, flags, fn, arg);
|
||||
t->id = mgr->timerid++;
|
||||
}
|
||||
return t;
|
||||
}
|
||||
|
||||
void mg_mgr_free(struct mg_mgr *mgr) {
|
||||
struct mg_connection *c;
|
||||
struct mg_timer *tmp, *t = mgr->timers;
|
||||
while (t != NULL) tmp = t->next, free(t), t = tmp;
|
||||
mgr->timers = NULL; // Important. Next call to poll won't touch timers
|
||||
for (c = mgr->conns; c != NULL; c = c->next) c->is_closing = 1;
|
||||
mg_mgr_poll(mgr, 0);
|
||||
#if MG_ENABLE_FREERTOS_TCP
|
||||
FreeRTOS_DeleteSocketSet(mgr->ss);
|
||||
#endif
|
||||
MG_DEBUG(("All connections closed"));
|
||||
#if MG_ENABLE_EPOLL
|
||||
if (mgr->epoll_fd >= 0) close(mgr->epoll_fd), mgr->epoll_fd = -1;
|
||||
#endif
|
||||
mg_tls_ctx_free(mgr);
|
||||
}
|
||||
|
||||
void mg_mgr_init(struct mg_mgr *mgr) {
|
||||
memset(mgr, 0, sizeof(*mgr));
|
||||
#if MG_ENABLE_EPOLL
|
||||
if ((mgr->epoll_fd = epoll_create1(EPOLL_CLOEXEC)) < 0)
|
||||
MG_ERROR(("epoll_create1 errno %d", errno));
|
||||
#else
|
||||
mgr->epoll_fd = -1;
|
||||
#endif
|
||||
#if MG_ARCH == MG_ARCH_WIN32 && MG_ENABLE_WINSOCK
|
||||
// clang-format off
|
||||
{ WSADATA data; WSAStartup(MAKEWORD(2, 2), &data); }
|
||||
// clang-format on
|
||||
#elif MG_ENABLE_FREERTOS_TCP
|
||||
mgr->ss = FreeRTOS_CreateSocketSet();
|
||||
#elif defined(__unix) || defined(__unix__) || defined(__APPLE__)
|
||||
// Ignore SIGPIPE signal, so if client cancels the request, it
|
||||
// won't kill the whole process.
|
||||
signal(SIGPIPE, SIG_IGN);
|
||||
#endif
|
||||
mgr->dnstimeout = 3000;
|
||||
mgr->dns4.url = "udp://8.8.8.8:53";
|
||||
mgr->dns6.url = "udp://[2001:4860:4860::8888]:53";
|
||||
}
|
||||
|
||||
#ifdef MG_ENABLE_LINES
|
||||
#line 1 "src/ota_dummy.c"
|
||||
#endif
|
||||
@ -7624,6 +7617,14 @@ struct mg_str mg_url_pass(const char *url) {
|
||||
#endif
|
||||
|
||||
|
||||
// Not using memset for zeroing memory, cause it can be dropped by compiler
|
||||
// See https://github.com/cesanta/mongoose/pull/1265
|
||||
void mg_bzero(volatile unsigned char *buf, size_t len) {
|
||||
if (buf != NULL) {
|
||||
while (len--) *buf++ = 0;
|
||||
}
|
||||
}
|
||||
|
||||
#if MG_ENABLE_CUSTOM_RANDOM
|
||||
#else
|
||||
void mg_random(void *buf, size_t len) {
|
||||
@ -7710,7 +7711,7 @@ int mg_check_ip_acl(struct mg_str acl, struct mg_addr *remote_ip) {
|
||||
uint32_t remote_ip4;
|
||||
if (remote_ip->is_ip6) {
|
||||
return -1; // TODO(): handle IPv6 ACL and addresses
|
||||
} else { // IPv4
|
||||
} else { // IPv4
|
||||
memcpy((void *) &remote_ip4, remote_ip->ip, sizeof(remote_ip4));
|
||||
while (mg_commalist(&acl, &k, &v)) {
|
||||
uint32_t net, mask;
|
||||
|
||||
@ -1016,6 +1016,7 @@ struct mg_str mg_unpacked(const char *path); // Packed file as mg_str
|
||||
#define assert(x)
|
||||
#endif
|
||||
|
||||
void mg_bzero(volatile unsigned char *buf, size_t len);
|
||||
void mg_random(void *buf, size_t len);
|
||||
char *mg_random_str(char *buf, size_t len);
|
||||
uint16_t mg_ntohs(uint16_t net);
|
||||
|
||||
17
src/iobuf.c
17
src/iobuf.c
@ -1,14 +1,7 @@
|
||||
#include "iobuf.h"
|
||||
#include "arch.h"
|
||||
#include "iobuf.h"
|
||||
#include "log.h"
|
||||
|
||||
// Not using memset for zeroing memory, cause it can be dropped by compiler
|
||||
// See https://github.com/cesanta/mongoose/pull/1265
|
||||
static void zeromem(volatile unsigned char *buf, size_t len) {
|
||||
if (buf != NULL) {
|
||||
while (len--) *buf++ = 0;
|
||||
}
|
||||
}
|
||||
#include "util.h"
|
||||
|
||||
static size_t roundup(size_t size, size_t align) {
|
||||
return align == 0 ? size : (size + align - 1) / align * align;
|
||||
@ -18,7 +11,7 @@ int mg_iobuf_resize(struct mg_iobuf *io, size_t new_size) {
|
||||
int ok = 1;
|
||||
new_size = roundup(new_size, io->align);
|
||||
if (new_size == 0) {
|
||||
zeromem(io->buf, io->size);
|
||||
mg_bzero(io->buf, io->size);
|
||||
free(io->buf);
|
||||
io->buf = NULL;
|
||||
io->len = io->size = 0;
|
||||
@ -29,7 +22,7 @@ int mg_iobuf_resize(struct mg_iobuf *io, size_t new_size) {
|
||||
if (p != NULL) {
|
||||
size_t len = new_size < io->len ? new_size : io->len;
|
||||
if (len > 0 && io->buf != NULL) memmove(p, io->buf, len);
|
||||
zeromem(io->buf, io->size);
|
||||
mg_bzero(io->buf, io->size);
|
||||
free(io->buf);
|
||||
io->buf = (unsigned char *) p;
|
||||
io->size = new_size;
|
||||
@ -64,7 +57,7 @@ size_t mg_iobuf_del(struct mg_iobuf *io, size_t ofs, size_t len) {
|
||||
if (ofs > io->len) ofs = io->len;
|
||||
if (ofs + len > io->len) len = io->len - ofs;
|
||||
if (io->buf) memmove(io->buf + ofs, io->buf + ofs + len, io->len - ofs - len);
|
||||
if (io->buf) zeromem(io->buf + io->len - len, len);
|
||||
if (io->buf) mg_bzero(io->buf + io->len - len, len);
|
||||
io->len -= len;
|
||||
return len;
|
||||
}
|
||||
|
||||
@ -143,7 +143,7 @@ void mg_close_conn(struct mg_connection *c) {
|
||||
mg_tls_free(c);
|
||||
mg_iobuf_free(&c->recv);
|
||||
mg_iobuf_free(&c->send);
|
||||
memset(c, 0, sizeof(*c));
|
||||
mg_bzero((unsigned char *) c, sizeof(*c));
|
||||
free(c);
|
||||
}
|
||||
|
||||
|
||||
10
src/util.c
10
src/util.c
@ -1,5 +1,13 @@
|
||||
#include "util.h"
|
||||
|
||||
// Not using memset for zeroing memory, cause it can be dropped by compiler
|
||||
// See https://github.com/cesanta/mongoose/pull/1265
|
||||
void mg_bzero(volatile unsigned char *buf, size_t len) {
|
||||
if (buf != NULL) {
|
||||
while (len--) *buf++ = 0;
|
||||
}
|
||||
}
|
||||
|
||||
#if MG_ENABLE_CUSTOM_RANDOM
|
||||
#else
|
||||
void mg_random(void *buf, size_t len) {
|
||||
@ -86,7 +94,7 @@ int mg_check_ip_acl(struct mg_str acl, struct mg_addr *remote_ip) {
|
||||
uint32_t remote_ip4;
|
||||
if (remote_ip->is_ip6) {
|
||||
return -1; // TODO(): handle IPv6 ACL and addresses
|
||||
} else { // IPv4
|
||||
} else { // IPv4
|
||||
memcpy((void *) &remote_ip4, remote_ip->ip, sizeof(remote_ip4));
|
||||
while (mg_commalist(&acl, &k, &v)) {
|
||||
uint32_t net, mask;
|
||||
|
||||
@ -11,6 +11,7 @@
|
||||
#define assert(x)
|
||||
#endif
|
||||
|
||||
void mg_bzero(volatile unsigned char *buf, size_t len);
|
||||
void mg_random(void *buf, size_t len);
|
||||
char *mg_random_str(char *buf, size_t len);
|
||||
uint16_t mg_ntohs(uint16_t net);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user