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memory: Tighten up some memory handling to help spot errors

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Set pointers to NULL after free() to help force out memory handling errors.
Add some extra memory / resource tracking to try and chase out latent
bugs / leaks Fixed a couple of memory traces that were misreporting.

Signed-off-by: Ian Clowes <clowes_ian@hotmail.com>
This commit is contained in:
Ian Clowes 2022-01-06 09:10:40 +01:00 • committed by Nick Hainke
parent 4df0c986f1
commit 6bf9b6df9a
10 changed files with 202 additions and 75 deletions
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6
src/network/networksocket.c
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@ -112,14 +112,17 @@ void *receive_msg_enc(void *args) {
char *dec = gcrypt_decrypt_msg(base64_dec_str, base64_dec_length);
if (!dec){
dawn_free(base64_dec_str);
base64_dec_str = NULL;
dawnlog_error("Received network error: not enough memory\n");
return 0;
}
dawnlog_debug("Received network message: %s\n", dec);
dawn_free(base64_dec_str);
base64_dec_str = NULL;
handle_network_msg(dec);
dawn_free(dec);
dec = NULL;
}
}
@ -157,6 +160,7 @@ int send_string_enc(char *msg) {
char *base64_enc_str = dawn_malloc(B64_ENCODE_LEN(length_enc));
if (!base64_enc_str){
dawn_free(enc);
enc = NULL;
dawnlog_error("sendto() error: not enough memory\n");
pthread_mutex_unlock(&send_mutex);
exit(EXIT_FAILURE);
@ -174,7 +178,9 @@ int send_string_enc(char *msg) {
exit(EXIT_FAILURE);
}
dawn_free(base64_enc_str);
base64_enc_str = NULL;
dawn_free(enc);
enc = NULL;
pthread_mutex_unlock(&send_mutex);
return 0;
}