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always zero memory

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mykola2312 2024-12-19 17:05:13 +02:00
parent eecde96cce
commit eba00ad9b2
1 changed files with 5 additions and 4 deletions
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9
main.c
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@ -51,11 +51,14 @@ struct linkinterface {
typedef void* frame_t; typedef void* frame_t;
frame_t frame_new(size_t datalen) { frame_t frame_new(size_t datalen) {
return malloc(datalen); frame_t frame = malloc(datalen);
memset(frame, '\0', datalen);
return frame;
} }
frame_t frame_full() { frame_t frame_full() {
return malloc(MTU); return frame_new(MTU);
} }
void frame_free(frame_t frame) { void frame_free(frame_t frame) {
@ -112,8 +115,6 @@ ssize_t link_send(struct linkinterface* link, const uint8_t* dstAddr,
// add space for ether header and shift user data // add space for ether header and shift user data
frame = realloc(frame, frame_len); frame = realloc(frame, frame_len);
memmove((uint8_t*)frame + sizeof(struct ether_header), frame, len); memmove((uint8_t*)frame + sizeof(struct ether_header), frame, len);
//uint8_t* frame = (uint8_t*)malloc(frame_len);
//memset(frame, '\0', frame_len);
struct ether_header* ether = (struct ether_header*)frame; struct ether_header* ether = (struct ether_header*)frame;
memcpy(ether->ether_shost, link->host, ETH_ALEN); memcpy(ether->ether_shost, link->host, ETH_ALEN);