minor changes

* fix typo
* less code duplication
* less `GString` usage
* more `auto_gchar` usage
* document connecting to servers supporting SASL ANONYMOUS
* ignore valgrind output

Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>

6 files changed, 43 insertions, 73 deletions

diff --git a/src/command/cmd_defs.c b/src/command/cmd_defs.c
index e65e2f00..83dc1bbf 100644
--- a/src/command/cmd_defs.c
+++ b/src/command/cmd_defs.c
@@ -170,15 +170,18 @@ static struct cmd_t command_defs[] = {
               CMD_TAG_CONNECTION)
       CMD_SYN(
               "/connect [<account>]",
-              "/connect <account> [server <server>] [port <port>] [tls force|allow|trust|legacy|disable] [auth default|legacy]")
+              "/connect <account> [server <server>] [port <port>] [tls force|allow|trust|legacy|disable] [auth default|legacy]",
+              "/connect <server>")
       CMD_DESC(
               "Login to a chat service. "
               "If no account is specified, the default is used if one is configured. "
-              "A local account is created with the JID as it's name if it doesn't already exist.")
+              "A local account is created with the JID as it's name if it doesn't already exist. "
+              "In case you want to connect to a server via SASL ANONYMOUS (c.f. XEP-0175) you can also do that.")
       CMD_ARGS(
               { "<account>", "The local account you wish to connect with, or a JID if connecting for the first time." },
               { "server <server>", "Supply a server if it is different to the domain part of your JID." },
               { "port <port>", "The port to use if different to the default (5222, or 5223 for SSL)." },
+              { "<server>", "Connect to said server in an anonymous way. (Be aware: There aren't many servers that support this.)" },
               { "tls force", "Force TLS connection, and fail if one cannot be established, this is default behaviour." },
               { "tls allow", "Use TLS for the connection if it is available." },
               { "tls trust", "Force TLS connection and trust server's certificate." },
@@ -192,7 +195,8 @@ static struct cmd_t command_defs[] = {
               "/connect odin@valhalla.edda server talk.google.com",
               "/connect freyr@vanaheimr.edda port 5678",
               "/connect me@localhost.test.org server 127.0.0.1 tls disable",
-              "/connect me@chatty server chatty.com port 5443")
+              "/connect me@chatty server chatty.com port 5443",
+              "/connect server.supporting.sasl.anonymous.example")
     },
 
     { "/tls",
@@ -2013,7 +2017,7 @@ static struct cmd_t command_defs[] = {
               { "rotate on|off", "Rotate log, default on. Does not take effect if you specified a filename yourself when starting Profanity." },
               { "maxsize <bytes>", "With rotate enabled, specifies the max log size, defaults to 10485760 (10MB)." },
               { "shared on|off", "Share logs between all instances, default: on. When off, the process id will be included in the log filename. Does not take effect if you specified a filename yourself when starting Profanity." },
-              {"level INFO|DEBUG|WARN|EFFOR", "Set the log level. Default is INFO. Only works with default log file, not with user provided log file during startup via -f." })
+              {"level INFO|DEBUG|WARN|ERROR", "Set the log level. Default is INFO. Only works with default log file, not with user provided log file during startup via -f." })
       CMD_NOEXAMPLES
     },
 
diff --git a/src/command/cmd_funcs.c b/src/command/cmd_funcs.c
index c0c0d036..795ea817 100644
--- a/src/command/cmd_funcs.c
+++ b/src/command/cmd_funcs.c
@@ -120,8 +120,8 @@
 
 static void _update_presence(const resource_presence_t presence,
                              const char* const show, gchar** args);
-static void _cmd_set_boolean_preference(gchar* arg, const char* const command,
-                                        const char* const display, preference_t pref);
+static gboolean _cmd_set_boolean_preference(gchar* arg, const char* const command,
+                                            const char* const display, preference_t pref);
 static void _who_room(ProfWin* window, const char* const command, gchar** args);
 static void _who_roster(ProfWin* window, const char* const command, gchar** args);
 static gboolean _cmd_execute(ProfWin* window, const char* const command, const char* const inp);
@@ -6517,9 +6517,8 @@ cmd_log(ProfWin* window, const char* const command, gchar** args)
     }
 
     if (strcmp(subcmd, "level") == 0) {
-        if (g_strcmp0(value, "INFO") == 0 || g_strcmp0(value, "DEBUG") == 0 || g_strcmp0(value, "WARN") == 0 || g_strcmp0(value, "ERROR") == 0) {
-
-            log_level_t prof_log_level = log_level_from_string(value);
+        log_level_t prof_log_level;
+        if (log_level_from_string(value, &prof_log_level) == 0) {
             log_close();
             log_init(prof_log_level, NULL);
 
@@ -8580,31 +8579,24 @@ _update_presence(const resource_presence_t resource_presence,
 }
 
 // helper function for boolean preference commands
-static void
+static gboolean
 _cmd_set_boolean_preference(gchar* arg, const char* const command,
                             const char* const display, preference_t pref)
 {
     if (arg == NULL) {
         cons_bad_cmd_usage(command);
-    } else if (strcmp(arg, "on") == 0) {
-        GString* enabled = g_string_new(display);
-        g_string_append(enabled, " enabled.");
-
-        cons_show(enabled->str);
+        return FALSE;
+    } else if (g_strcmp0(arg, "on") == 0) {
+        cons_show("%s enabled.", display);
         prefs_set_boolean(pref, TRUE);
-
-        g_string_free(enabled, TRUE);
-    } else if (strcmp(arg, "off") == 0) {
-        GString* disabled = g_string_new(display);
-        g_string_append(disabled, " disabled.");
-
-        cons_show(disabled->str);
+    } else if (g_strcmp0(arg, "off") == 0) {
+        cons_show("%s disabled.", display);
         prefs_set_boolean(pref, FALSE);
-
-        g_string_free(disabled, TRUE);
     } else {
         cons_bad_cmd_usage(command);
+        return FALSE;
     }
+    return TRUE;
 }
 
 gboolean
diff --git a/src/log.c b/src/log.c
index 97c1a149..a1b7bb1d 100644
--- a/src/log.c
+++ b/src/log.c
@@ -233,21 +233,25 @@ log_msg(log_level_t level, const char* const area, const char* const msg)
     }
 }
 
-log_level_t
-log_level_from_string(char* log_level)
+int
+log_level_from_string(char* log_level, log_level_t* level)
 {
+    int ret = 0;
     assert(log_level != NULL);
+    assert(level != NULL);
     if (strcmp(log_level, "DEBUG") == 0) {
-        return PROF_LEVEL_DEBUG;
+        *level = PROF_LEVEL_DEBUG;
     } else if (strcmp(log_level, "INFO") == 0) {
-        return PROF_LEVEL_INFO;
+        *level = PROF_LEVEL_INFO;
     } else if (strcmp(log_level, "WARN") == 0) {
-        return PROF_LEVEL_WARN;
+        *level = PROF_LEVEL_WARN;
     } else if (strcmp(log_level, "ERROR") == 0) {
-        return PROF_LEVEL_ERROR;
+        *level = PROF_LEVEL_ERROR;
     } else { // default logging is warn
-        return PROF_LEVEL_WARN;
+        *level = PROF_LEVEL_WARN;
+        ret = -1;
     }
+    return ret;
 }
 
 const char*
diff --git a/src/log.h b/src/log.h
index 2a955c90..3bf092b3 100644
--- a/src/log.h
+++ b/src/log.h
@@ -55,7 +55,7 @@ void log_info(const char* const msg, ...);
 void log_warning(const char* const msg, ...);
 void log_error(const char* const msg, ...);
 void log_msg(log_level_t level, const char* const area, const char* const msg);
-log_level_t log_level_from_string(char* log_level);
+int log_level_from_string(char* log_level, log_level_t* level);
 const char* log_string_from_level(log_level_t level);
 
 void log_stderr_init(log_level_t level);
diff --git a/src/profanity.c b/src/profanity.c
index 49adc4a0..869ab561 100644
--- a/src/profanity.c
+++ b/src/profanity.c
@@ -175,7 +175,8 @@ _init(char* log_level, char* config_file, char* log_file, char* theme_name)
 
     pthread_mutex_lock(&lock);
     files_create_directories();
-    log_level_t prof_log_level = log_level_from_string(log_level);
+    log_level_t prof_log_level;
+    log_level_from_string(log_level, &prof_log_level);
     prefs_load(config_file);
     log_init(prof_log_level, log_file);
     log_stderr_init(PROF_LEVEL_ERROR);
diff --git a/src/tools/autocomplete.c b/src/tools/autocomplete.c
index 9450b98f..2f1acc1f 100644
--- a/src/tools/autocomplete.c
+++ b/src/tools/autocomplete.c
@@ -367,34 +367,20 @@ char*
 autocomplete_param_no_with_func(const char* const input, char* command, int arg_number, autocomplete_func func, gboolean previous, void* context)
 {
     if (strncmp(input, command, strlen(command)) == 0) {
-        GString* result_str = NULL;
-
         // count tokens properly
         int num_tokens = count_tokens(input);
 
         // if correct number of tokens, then candidate for autocompletion of last param
         if (num_tokens == arg_number) {
-            gchar* start_str = get_start(input, arg_number);
-            gchar* comp_str = g_strdup(&input[strlen(start_str)]);
+            auto_gchar gchar* start_str = get_start(input, arg_number);
+            auto_gchar gchar* comp_str = g_strdup(&input[strlen(start_str)]);
 
             // autocomplete param
             if (comp_str) {
-                char* found = func(comp_str, previous, context);
+                auto_gchar gchar* found = func(comp_str, previous, context);
                 if (found) {
-                    result_str = g_string_new("");
-                    g_string_append(result_str, start_str);
-                    g_string_append(result_str, found);
-
-                    free(start_str);
-                    free(comp_str);
-
-                    char* result = result_str->str;
-                    g_string_free(result_str, FALSE);
-
-                    return result;
+                    return g_strdup_printf("%s%s", start_str, found);
                 }
-            } else {
-                free(start_str);
             }
         }
     }
@@ -418,14 +404,12 @@ autocomplete_remove_older_than_max_reverse(Autocomplete ac, int maxsize)
 static gchar*
 _search(Autocomplete ac, GList* curr, gboolean quote, search_direction direction)
 {
-    gchar* search_str_ascii = g_str_to_ascii(ac->search_str, NULL);
-    gchar* search_str_lower = g_ascii_strdown(search_str_ascii, -1);
-    g_free(search_str_ascii);
+    auto_gchar gchar* search_str_ascii = g_str_to_ascii(ac->search_str, NULL);
+    auto_gchar gchar* search_str_lower = g_ascii_strdown(search_str_ascii, -1);
 
     while (curr) {
-        gchar* curr_ascii = g_str_to_ascii(curr->data, NULL);
-        gchar* curr_lower = g_ascii_strdown(curr_ascii, -1);
-        g_free(curr_ascii);
+        auto_gchar gchar* curr_ascii = g_str_to_ascii(curr->data, NULL);
+        auto_gchar gchar* curr_lower = g_ascii_strdown(curr_ascii, -1);
 
         // match found
         if (strncmp(curr_lower, search_str_lower, strlen(search_str_lower)) == 0) {
@@ -435,27 +419,13 @@ _search(Autocomplete ac, GList* curr, gboolean quote, search_direction direction
 
             // if contains space, quote before returning
             if (quote && g_strrstr(curr->data, " ")) {
-                GString* quoted = g_string_new("\"");
-                g_string_append(quoted, curr->data);
-                g_string_append(quoted, "\"");
-
-                gchar* result = quoted->str;
-                g_string_free(quoted, FALSE);
-
-                g_free(search_str_lower);
-                g_free(curr_lower);
-                return result;
-
+                return g_strdup_printf("\"%s\"", (gchar*)curr->data);
                 // otherwise just return the string
             } else {
-                g_free(search_str_lower);
-                g_free(curr_lower);
                 return strdup(curr->data);
             }
         }
 
-        g_free(curr_lower);
-
         if (direction == PREVIOUS) {
             curr = g_list_previous(curr);
         } else {
@@ -463,6 +433,5 @@ _search(Autocomplete ac, GList* curr, gboolean quote, search_direction direction
         }
     }
 
-    g_free(search_str_lower);
     return NULL;
 }