dinoco

commit 9cee0985fb317047455c012836841c92995fda3b
parent 7c4b26f8a64da18ca42033be3e615569c6de2e12
Author: Nibo <kroekerrobin@gmail.com>
Date:   Fri, 23 Jun 2023 17:48:14 +0200

Print error msgs to stderr

Diffstat:
M
dinoco.c
 | 
14
+++++++-------

1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/dinoco.c b/dinoco.c
@@ -560,7 +560,7 @@ struct byte_array *reqServer(char *req, int length)
 	char *ip = getDNSServerIP();
 	if (strlen(ip) == 0)
 	{
-		printf("getDNSServerIP failed.\n");
+		fprintf(stderr, "getDNSServerIP failed.\n");
 		return NULL;
 	}
 	struct hostent *host = (struct hostent *) gethostbyname(ip);
@@ -599,13 +599,13 @@ struct byte_array *reqServer(char *req, int length)
 		else
 		{
 			free(res);
-			printf("Didn't receive a response.\n");
+			fprintf(stderr, "Didn't receive a response.\n");
 			return NULL;
 		}
 	}
 	else
 	{
-		printf("Didn't send whole request.\n");
+		fprintf(stderr, "Didn't send whole request.\n");
 		return NULL;
 	}
 }
@@ -616,7 +616,7 @@ bool isValidResponse(struct dns_header *reqHeader, struct dns_header *resHeader)
 		return false;
 	if (resHeader->rcode != RCODE_NO_ERROR)
 	{
-		printf("%s\n", getRCODEString(resHeader->rcode));
+		fprintf(stderr, "%s\n", getRCODEString(resHeader->rcode));
 		return false;
 	}
 	if (resHeader->ancount < reqHeader->qdcount)
@@ -697,7 +697,7 @@ int main(int argc, char *argv[])
 	free(req);
 	if (res == NULL)
 	{
-		printf("reqServer failed.\n");
+		fprintf(stderr, "reqServer failed.\n");
 		return -1;
 	}
 	if (res->length >= DNS_HEADER_LENGTH)
@@ -745,7 +745,7 @@ int main(int argc, char *argv[])
 			free(resHeader);
 			free(question->bytes);
 			free(question);
-			printf("isValidResponse failed.\n");
+			fprintf(stderr, "isValidResponse failed.\n");
 			return -1;
 		}
 	}
@@ -753,7 +753,7 @@ int main(int argc, char *argv[])
 	{
 		free(res->bytes);
 		free(res);
-		printf("Response too short.\n");
+		fprintf(stderr, "Response too short.\n");
 		return -1;
 	}
 	return 0;