logswan

commit 619b321bdcafab044714ea172d92eb706935c0a6
parent 2c29c6af1750e4f94ad50eca171d201e1ce868c7
Author: Frederic Cambus <fcambus@users.sourceforge.net>
Date:   Sun, 28 Jun 2015 15:12:00 +0200

Save JSON output in a file instead of displaying it on stdout

Diffstat:
M
src/logswan.c
 | 
17
++++++++++++-----

1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/src/logswan.c b/src/logswan.c
@@ -53,7 +53,7 @@ int statusCode;
 int hour;
 
 struct stat logFileSize;
-FILE *logFile;
+FILE *logFile, *jsonFile;
 
 const char *errstr;
 
@@ -90,16 +90,22 @@ int main (int argc, char *argv[]) {
 	printf("Processing file : %s\n\n", argv[1]);
 
 	logFile = fopen(argv[1], "r");
-	if(!logFile) {
+	if (!logFile) {
 		perror("Can't open log file");
-		return 1;
+		return EXIT_FAILURE;
 	}
 
-	/* Create output file name */
+	/* Create output file */
 	int outputLen = strlen(argv[1]) + 6;
 	char *outputFile = malloc(outputLen);
 	snprintf(outputFile, outputLen, "%s%s", argv[1], ".json");
 
+	jsonFile = fopen(outputFile, "w");
+	if (!jsonFile) {
+		perror("Can't create output file");
+		return EXIT_FAILURE;
+	}
+
 	while (fgets(lineBuffer, LINE_MAX_LENGTH, logFile) != NULL) {
 		/* Parse and tokenize line */
 		parseLine(&parsedLine, lineBuffer);
@@ -171,7 +177,8 @@ int main (int argc, char *argv[]) {
 	printf("Processed %" PRIu64 " lines in %f seconds\n", results.processedLines, results.runtime);
 	fclose(logFile);
 
-	output(results);
+	fputs(output(results), jsonFile);
+	fclose(jsonFile);
 
 	return EXIT_SUCCESS;
 }