add initial ~/.bti.log support to log what is going on

This needs to be configurable, will do that later...

diff --git a/bti.c b/bti.c
index a06c818499414462ed6bb2b00971372cc52a8333..cf1b164837a3a298d125a4d98a3ee78e6fb3ec5c 100644 (file)
--- a/bti.c
+++ b/bti.c
@@ -24,6 +24,7 @@
 #include <ctype.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <time.h>
 #include <sys/stat.h>
 #include <curl/curl.h>
 #include "bti_version.h"
@@ -50,6 +51,8 @@ struct session {
        char *account;
        char *tweet;
        char *proxy;
+       char *time;
+       char *homedir;
        int bash;
        enum host host;
 };
@@ -115,6 +118,8 @@ static void session_free(struct session *session)
        free(session->account);
        free(session->tweet);
        free(session->proxy);
+       free(session->time);
+       free(session->homedir);
        free(session);
 }
 
@@ -271,12 +276,11 @@ static void parse_configfile(struct session *session)
        char *host = NULL;
        char *proxy = NULL;
        char *file;
-       char *home = getenv("HOME");
 
        /* config file is ~/.bti  */
-       file = alloca(strlen(home) + 7);
+       file = alloca(strlen(session->homedir) + 7);
 
-       sprintf(file, "%s/.bti", home);
+       sprintf(file, "%s/.bti", session->homedir);
 
        config_file = fopen(file, "r");
 
@@ -347,6 +351,40 @@ static void parse_configfile(struct session *session)
        fclose(config_file);
 }
 
+static void log_session(struct session *session, int retval)
+{
+       FILE *log_file;
+       char *filename;
+       char *host;
+
+       /* logfile is ~/.bti.log  */
+       filename = alloca(strlen(session->homedir) + 10);
+
+       sprintf(filename, "%s/.bti.log", session->homedir);
+
+       log_file = fopen(filename, "a+");
+       if (log_file == NULL)
+               return;
+       switch (session->host) {
+       case HOST_TWITTER:
+               host = "twitter";
+               break;
+       case HOST_IDENTICA:
+               host = "identi.ca";
+               break;
+       default:
+               host = "unknown";
+               break;
+       }
+
+       if (retval)
+               fprintf(log_file, "%s: host=%s tweet failed\n", session->time, host);
+       else
+               fprintf(log_file, "%s: host=%s tweet=%s\n", session->time, host, session->tweet);
+
+       fclose(log_file);
+}
+
 int main(int argc, char *argv[], char *envp[])
 {
        static const struct option options[] = {
@@ -363,20 +401,28 @@ int main(int argc, char *argv[], char *envp[])
        struct session *session;
        pid_t child;
        char *tweet;
-       int retval;
+       int retval = 0;
        int option;
        char *http_proxy;
+       time_t t;
 #if 0
-       char *home = getenv("HOME");
        char *pwd = getenv("PWD");
        char *dir;
 #endif
+
        session = session_alloc();
        if (!session) {
                fprintf(stderr, "no more memory...\n");
                return -1;
        }
 
+       /* get the current time so that we can log it later */
+       time(&t);
+       session->time = strdup(ctime(&t));
+       session->time[strlen(session->time)-1] = 0x00;
+
+       session->homedir = strdup(getenv("HOME"));
+
        curl_global_init(CURL_GLOBAL_ALL);
 
        /* Set environment variables first, before reading command line options
@@ -496,12 +542,11 @@ int main(int argc, char *argv[], char *envp[])
        }
 
        retval = send_tweet(session);
-       if (retval && !session->bash) {
+       if (retval && !session->bash)
                fprintf(stderr, "tweet failed\n");
-               return -1;
-       }
 
-       session_free(session);
+       log_session(session, retval);
 exit:
-       return 0;
+       session_free(session);
+       return retval;;
 }