Added support for $uid_name

ChangeLog

@@ -1,6 +1,7 @@
 2009-11-15
 	* Added support for $pid_parent, $pid_uid, $pid_euid, $pid_suid,
 	$pid_fsuid, $pid_gid, $pid_egid, $pid_sgid and $pid_fsgid
+	* Added support for $uid_name
 
 2009-11-14
 	* Added support for $pid_state and $pid_state_short

doc/variables.xml

@@ -3374,6 +3374,16 @@
         US/Pacific, Europe/Zurich, etc. 
         <para /></listitem>
     </varlistentry>
+    <varlistentry>
+        <term>
+            <command>
+                <option>uid_name</option>
+            </command>
+            <option>uid</option>
+        </term>
+        <listitem>Username of user with this uid
+        <para /></listitem>
+    </varlistentry>
     <varlistentry>
         <term>
             <command>

extras/nano/conky.nanorc

@@ -11,7 +11,7 @@ color green "\<(alignment|append_file|background|border_inner_margin|border_oute
 color yellow "\<(above|below|bottom_left|bottom_right|bottom_middle|desktop|dock|no|none|normal|override|skip_pager|skip_taskbar|sticky|top_left|top_right|top_middle|middle_left|middle_right|middle_middle|undecorated|yes)\>"
 
 ## Variables
-color brightblue "\<(acpiacadapter|acpifan|acpitemp|addr|addrs|alignc|alignr|apcupsd|apcupsd_cable|apcupsd_charge|apcupsd_lastxfer|apcupsd_linev|apcupsd_load|apcupsd_loadbar|apcupsd_loadgauge|apcupsd_loadgraph|apcupsd_model|apcupsd_name|apcupsd_status|apcupsd_temp|apcupsd_timeleft|apcupsd_upsmode|apm_adapter|apm_battery_life|apm_battery_time|audacious_bar|audacious_bitrate|audacious_channels|audacious_filename|audacious_frequency|audacious_length|audacious_length_seconds|audacious_main_volume|audacious_playlist_length|audacious_playlist_position|audacious_position|audacious_position_seconds|audacious_status|audacious_title|battery|battery_bar|battery_percent|battery_short|battery_time|blink|bmpx_album|bmpx_artist|bmpx_bitrate|bmpx_title|bmpx_track|bmpx_uri|buffers|cached|cmdline_to_pid|color|color0|color1|color2|color3|color4|color5|color6|color7|color8|color9|combine|conky_build_arch|conky_build_date|conky_version|cpu|cpubar|cpugauge|cpugraph|curl|desktop|desktop_name|desktop_number|disk_protect|diskio|diskio_read|diskio_write|diskiograph|diskiograph_read|diskiograph_write|downspeed|downspeedf|downspeedgraph|draft_mails|else|endif|entropy_avail|entropy_bar|entropy_perc|entropy_poolsize|eval|eve|exec|execbar|execgauge|execgraph|execi|execibar|execigauge|execigraph|execp|execpi|flagged_mails|font|forwarded_mails|freq|freq_g|fs_bar|fs_bar_free|fs_free|fs_free_perc|fs_size|fs_type|fs_used|fs_used_perc|goto|gw_iface|gw_ip|hddtemp|head|hr|hwmon|i2c|i8k_ac_status|i8k_bios|i8k_buttons_status|i8k_cpu_temp|i8k_left_fan_rpm|i8k_left_fan_status|i8k_right_fan_rpm|i8k_right_fan_status|i8k_serial|i8k_version|ibm_brightness|ibm_fan|ibm_temps|ibm_volume|iconv_start|iconv_stop|if_empty|if_existing|if_gw|if_match|if_mixer_mute|if_mounted|if_mpd_playing|if_running|if_smapi_bat_installed|if_up|if_updatenr|if_xmms2_connected|image|imap_messages|imap_unseen|include|ioscheduler|kernel|laptop_mode|lines|loadavg|loadgraph|lua|lua_bar|lua_gauge|lua_graph|lua_parse|machine|mails|mboxscan|mem|membar|memeasyfree|memfree|memgauge|memgraph|memmax|memperc|mixer|mixerbar|mixerl|mixerlbar|mixerr|mixerrbar|moc_album|moc_artist|moc_bitrate|moc_curtime|moc_file|moc_rate|moc_song|moc_state|moc_timeleft|moc_title|moc_totaltime|monitor|monitor_number|mpd_album|mpd_artist|mpd_bar|mpd_bitrate|mpd_elapsed|mpd_file|mpd_length|mpd_name|mpd_percent|mpd_random|mpd_repeat|mpd_smart|mpd_status|mpd_title|mpd_track|mpd_vol|nameserver|new_mails|nodename|nvidia|obsd_product|obsd_sensors_fan|obsd_sensors_temp|obsd_sensors_volt|obsd_vendor|offset|outlinecolor|pb_battery|pid_chroot|pid_cmdline|pid_cwd|pid_environ|pid_environ_list|pid_exe|pid_openfiles|pid_parent|pid_state|pid_state_short|pid_stderr|pid_stdin|pid_stdout|pid_uid|pid_euid|pid_suid|pid_fsuid|pid_gid|pid_egid|pid_sgid|pid_fsgid|platform|pop3_unseen|pop3_used|pre_exec|processes|read_tcp|replied_mails|rss|running_processes|scroll|seen_mails|shadecolor|smapi|smapi_bat_bar|smapi_bat_perc|smapi_bat_power|smapi_bat_temp|sony_fanspeed|stippled_hr|swap|swapbar|swapfree|swapmax|swapperc|sysname|tab|tail|tcp_portmon|template0|template1|template2|template3|template4|template5|template6|template7|template8|template9|texeci|threads|time|to_bytes|top|top_io|top_mem|top_time|totaldown|totalup|trashed_mails|tztime|unflagged_mails|unforwarded_mails|unreplied_mails|unseen_mails|updates|upspeed|upspeedf|upspeedgraph|uptime|uptime_short|user_names|user_number|user_terms|user_times|user_time|utime|voffset|voltage_mv|voltage_v|weather|wireless_ap|wireless_bitrate|wireless_essid|wireless_link_bar|wireless_link_qual|wireless_link_qual_max|wireless_link_qual_perc|wireless_mode|words|xmms2_album|xmms2_artist|xmms2_bar|xmms2_bitrate|xmms2_comment|xmms2_date|xmms2_duration|xmms2_elapsed|xmms2_genre|xmms2_id|xmms2_percent|xmms2_playlist|xmms2_size|xmms2_smart|xmms2_status|xmms2_timesplayed|xmms2_title|xmms2_tracknr|xmms2_url)\>"
+color brightblue "\<(acpiacadapter|acpifan|acpitemp|addr|addrs|alignc|alignr|apcupsd|apcupsd_cable|apcupsd_charge|apcupsd_lastxfer|apcupsd_linev|apcupsd_load|apcupsd_loadbar|apcupsd_loadgauge|apcupsd_loadgraph|apcupsd_model|apcupsd_name|apcupsd_status|apcupsd_temp|apcupsd_timeleft|apcupsd_upsmode|apm_adapter|apm_battery_life|apm_battery_time|audacious_bar|audacious_bitrate|audacious_channels|audacious_filename|audacious_frequency|audacious_length|audacious_length_seconds|audacious_main_volume|audacious_playlist_length|audacious_playlist_position|audacious_position|audacious_position_seconds|audacious_status|audacious_title|battery|battery_bar|battery_percent|battery_short|battery_time|blink|bmpx_album|bmpx_artist|bmpx_bitrate|bmpx_title|bmpx_track|bmpx_uri|buffers|cached|cmdline_to_pid|color|color0|color1|color2|color3|color4|color5|color6|color7|color8|color9|combine|conky_build_arch|conky_build_date|conky_version|cpu|cpubar|cpugauge|cpugraph|curl|desktop|desktop_name|desktop_number|disk_protect|diskio|diskio_read|diskio_write|diskiograph|diskiograph_read|diskiograph_write|downspeed|downspeedf|downspeedgraph|draft_mails|else|endif|entropy_avail|entropy_bar|entropy_perc|entropy_poolsize|eval|eve|exec|execbar|execgauge|execgraph|execi|execibar|execigauge|execigraph|execp|execpi|flagged_mails|font|forwarded_mails|freq|freq_g|fs_bar|fs_bar_free|fs_free|fs_free_perc|fs_size|fs_type|fs_used|fs_used_perc|goto|gw_iface|gw_ip|hddtemp|head|hr|hwmon|i2c|i8k_ac_status|i8k_bios|i8k_buttons_status|i8k_cpu_temp|i8k_left_fan_rpm|i8k_left_fan_status|i8k_right_fan_rpm|i8k_right_fan_status|i8k_serial|i8k_version|ibm_brightness|ibm_fan|ibm_temps|ibm_volume|iconv_start|iconv_stop|if_empty|if_existing|if_gw|if_match|if_mixer_mute|if_mounted|if_mpd_playing|if_running|if_smapi_bat_installed|if_up|if_updatenr|if_xmms2_connected|image|imap_messages|imap_unseen|include|ioscheduler|kernel|laptop_mode|lines|loadavg|loadgraph|lua|lua_bar|lua_gauge|lua_graph|lua_parse|machine|mails|mboxscan|mem|membar|memeasyfree|memfree|memgauge|memgraph|memmax|memperc|mixer|mixerbar|mixerl|mixerlbar|mixerr|mixerrbar|moc_album|moc_artist|moc_bitrate|moc_curtime|moc_file|moc_rate|moc_song|moc_state|moc_timeleft|moc_title|moc_totaltime|monitor|monitor_number|mpd_album|mpd_artist|mpd_bar|mpd_bitrate|mpd_elapsed|mpd_file|mpd_length|mpd_name|mpd_percent|mpd_random|mpd_repeat|mpd_smart|mpd_status|mpd_title|mpd_track|mpd_vol|nameserver|new_mails|nodename|nvidia|obsd_product|obsd_sensors_fan|obsd_sensors_temp|obsd_sensors_volt|obsd_vendor|offset|outlinecolor|pb_battery|pid_chroot|pid_cmdline|pid_cwd|pid_environ|pid_environ_list|pid_exe|pid_openfiles|pid_parent|pid_state|pid_state_short|pid_stderr|pid_stdin|pid_stdout|pid_uid|pid_euid|pid_suid|pid_fsuid|pid_gid|pid_egid|pid_sgid|pid_fsgid|platform|pop3_unseen|pop3_used|pre_exec|processes|read_tcp|replied_mails|rss|running_processes|scroll|seen_mails|shadecolor|smapi|smapi_bat_bar|smapi_bat_perc|smapi_bat_power|smapi_bat_temp|sony_fanspeed|stippled_hr|swap|swapbar|swapfree|swapmax|swapperc|sysname|tab|tail|tcp_portmon|template0|template1|template2|template3|template4|template5|template6|template7|template8|template9|texeci|threads|time|to_bytes|top|top_io|top_mem|top_time|totaldown|totalup|trashed_mails|tztime|uid_name|unflagged_mails|unforwarded_mails|unreplied_mails|unseen_mails|updates|upspeed|upspeedf|upspeedgraph|uptime|uptime_short|user_names|user_number|user_terms|user_times|user_time|utime|voffset|voltage_mv|voltage_v|weather|wireless_ap|wireless_bitrate|wireless_essid|wireless_link_bar|wireless_link_qual|wireless_link_qual_max|wireless_link_qual_perc|wireless_mode|words|xmms2_album|xmms2_artist|xmms2_bar|xmms2_bitrate|xmms2_comment|xmms2_date|xmms2_duration|xmms2_elapsed|xmms2_genre|xmms2_id|xmms2_percent|xmms2_playlist|xmms2_size|xmms2_smart|xmms2_status|xmms2_timesplayed|xmms2_title|xmms2_tracknr|xmms2_url)\>"
 
 color brightblue "\$\{?[0-9A-Z_!@#$*?-]+\}?"
 color cyan "(\{|\}|\(|\)|\;|\]|\[|`|\\|\$|<|>|!|=|&|\|)"

extras/vim/syntax/conkyrc.vim

@@ -50,7 +50,7 @@ syn region ConkyrcVar start=/\$\w\@=/ end=/\W\@=\|$/ contained contains=ConkyrcV
 
 syn match ConkyrcVarStuff /{\@<=/ms=s contained nextgroup=ConkyrcVarName
 
-syn keyword ConkyrcVarName contained nextgroup=ConkyrcNumber,ConkyrcColour skipwhite acpiacadapter acpifan acpitemp addr addrs alignc alignr apcupsd apcupsd_cable apcupsd_charge apcupsd_lastxfer apcupsd_linev apcupsd_load apcupsd_loadbar apcupsd_loadgauge apcupsd_loadgraph apcupsd_model apcupsd_name apcupsd_status apcupsd_temp apcupsd_timeleft apcupsd_upsmode apm_adapter apm_battery_life apm_battery_time audacious_bar audacious_bitrate audacious_channels audacious_filename audacious_frequency audacious_length audacious_length_seconds audacious_main_volume audacious_playlist_length audacious_playlist_position audacious_position audacious_position_seconds audacious_status audacious_title battery battery_bar battery_percent battery_short battery_time blink bmpx_album bmpx_artist bmpx_bitrate bmpx_title bmpx_track bmpx_uri buffers cached cmdline_to_pid color color0 color1 color2 color3 color4 color5 color6 color7 color8 color9 combine conky_build_arch conky_build_date conky_version cpu cpubar cpugauge cpugraph curl desktop desktop_name desktop_number disk_protect diskio diskio_read diskio_write diskiograph diskiograph_read diskiograph_write downspeed downspeedf downspeedgraph draft_mails else endif entropy_avail entropy_bar entropy_perc entropy_poolsize eval eve exec execbar execgauge execgraph execi execibar execigauge execigraph execp execpi flagged_mails font forwarded_mails freq freq_g fs_bar fs_bar_free fs_free fs_free_perc fs_size fs_type fs_used fs_used_perc goto gw_iface gw_ip hddtemp head hr hwmon i2c i8k_ac_status i8k_bios i8k_buttons_status i8k_cpu_temp i8k_left_fan_rpm i8k_left_fan_status i8k_right_fan_rpm i8k_right_fan_status i8k_serial i8k_version ibm_brightness ibm_fan ibm_temps ibm_volume iconv_start iconv_stop if_empty if_existing if_gw if_match if_mixer_mute if_mounted if_mpd_playing if_running if_smapi_bat_installed if_up if_updatenr if_xmms2_connected image imap_messages imap_unseen include ioscheduler kernel laptop_mode lines loadavg loadgraph lua lua_bar lua_gauge lua_graph lua_parse machine mails mboxscan mem membar memeasyfree memfree memgauge memgraph memmax memperc mixer mixerbar mixerl mixerlbar mixerr mixerrbar moc_album moc_artist moc_bitrate moc_curtime moc_file moc_rate moc_song moc_state moc_timeleft moc_title moc_totaltime monitor monitor_number mpd_album mpd_artist mpd_bar mpd_bitrate mpd_elapsed mpd_file mpd_length mpd_name mpd_percent mpd_random mpd_repeat mpd_smart mpd_status mpd_title mpd_track mpd_vol nameserver new_mails nodename nvidia obsd_product obsd_sensors_fan obsd_sensors_temp obsd_sensors_volt obsd_vendor offset outlinecolor pb_battery pid_chroot pid_cmdline pid_cwd pid_environ pid_environ_list pid_exe pid_openfiles pid_parent pid_state pid_state_short pid_stderr pid_stdin pid_stdout pid_uid pid_euid pid_suid pid_fsuid pid_gid pid_egid pid_sgid pid_fsgid platform pop3_unseen pop3_used pre_exec processes read_tcp replied_mails rss running_processes scroll seen_mails shadecolor smapi smapi_bat_bar smapi_bat_perc smapi_bat_power smapi_bat_temp sony_fanspeed stippled_hr swap swapbar swapfree swapmax swapperc sysname tab tail tcp_portmon template0 template1 template2 template3 template4 template5 template6 template7 template8 template9 texeci threads time to_bytes top top_io top_mem top_time totaldown totalup trashed_mails tztime unflagged_mails unforwarded_mails unreplied_mails unseen_mails updates upspeed upspeedf upspeedgraph uptime uptime_short user_names user_number user_terms user_times user_time utime voffset voltage_mv voltage_v weather wireless_ap wireless_bitrate wireless_essid wireless_link_bar wireless_link_qual wireless_link_qual_max wireless_link_qual_perc wireless_mode words xmms2_album xmms2_artist xmms2_bar xmms2_bitrate xmms2_comment xmms2_date xmms2_duration xmms2_elapsed xmms2_genre xmms2_id xmms2_percent xmms2_playlist xmms2_size xmms2_smart xmms2_status xmms2_timesplayed xmms2_title xmms2_tracknr xmms2_url
+syn keyword ConkyrcVarName contained nextgroup=ConkyrcNumber,ConkyrcColour skipwhite acpiacadapter acpifan acpitemp addr addrs alignc alignr apcupsd apcupsd_cable apcupsd_charge apcupsd_lastxfer apcupsd_linev apcupsd_load apcupsd_loadbar apcupsd_loadgauge apcupsd_loadgraph apcupsd_model apcupsd_name apcupsd_status apcupsd_temp apcupsd_timeleft apcupsd_upsmode apm_adapter apm_battery_life apm_battery_time audacious_bar audacious_bitrate audacious_channels audacious_filename audacious_frequency audacious_length audacious_length_seconds audacious_main_volume audacious_playlist_length audacious_playlist_position audacious_position audacious_position_seconds audacious_status audacious_title battery battery_bar battery_percent battery_short battery_time blink bmpx_album bmpx_artist bmpx_bitrate bmpx_title bmpx_track bmpx_uri buffers cached cmdline_to_pid color color0 color1 color2 color3 color4 color5 color6 color7 color8 color9 combine conky_build_arch conky_build_date conky_version cpu cpubar cpugauge cpugraph curl desktop desktop_name desktop_number disk_protect diskio diskio_read diskio_write diskiograph diskiograph_read diskiograph_write downspeed downspeedf downspeedgraph draft_mails else endif entropy_avail entropy_bar entropy_perc entropy_poolsize eval eve exec execbar execgauge execgraph execi execibar execigauge execigraph execp execpi flagged_mails font forwarded_mails freq freq_g fs_bar fs_bar_free fs_free fs_free_perc fs_size fs_type fs_used fs_used_perc goto gw_iface gw_ip hddtemp head hr hwmon i2c i8k_ac_status i8k_bios i8k_buttons_status i8k_cpu_temp i8k_left_fan_rpm i8k_left_fan_status i8k_right_fan_rpm i8k_right_fan_status i8k_serial i8k_version ibm_brightness ibm_fan ibm_temps ibm_volume iconv_start iconv_stop if_empty if_existing if_gw if_match if_mixer_mute if_mounted if_mpd_playing if_running if_smapi_bat_installed if_up if_updatenr if_xmms2_connected image imap_messages imap_unseen include ioscheduler kernel laptop_mode lines loadavg loadgraph lua lua_bar lua_gauge lua_graph lua_parse machine mails mboxscan mem membar memeasyfree memfree memgauge memgraph memmax memperc mixer mixerbar mixerl mixerlbar mixerr mixerrbar moc_album moc_artist moc_bitrate moc_curtime moc_file moc_rate moc_song moc_state moc_timeleft moc_title moc_totaltime monitor monitor_number mpd_album mpd_artist mpd_bar mpd_bitrate mpd_elapsed mpd_file mpd_length mpd_name mpd_percent mpd_random mpd_repeat mpd_smart mpd_status mpd_title mpd_track mpd_vol nameserver new_mails nodename nvidia obsd_product obsd_sensors_fan obsd_sensors_temp obsd_sensors_volt obsd_vendor offset outlinecolor pb_battery pid_chroot pid_cmdline pid_cwd pid_environ pid_environ_list pid_exe pid_openfiles pid_parent pid_state pid_state_short pid_stderr pid_stdin pid_stdout pid_uid pid_euid pid_suid pid_fsuid pid_gid pid_egid pid_sgid pid_fsgid platform pop3_unseen pop3_used pre_exec processes read_tcp replied_mails rss running_processes scroll seen_mails shadecolor smapi smapi_bat_bar smapi_bat_perc smapi_bat_power smapi_bat_temp sony_fanspeed stippled_hr swap swapbar swapfree swapmax swapperc sysname tab tail tcp_portmon template0 template1 template2 template3 template4 template5 template6 template7 template8 template9 texeci threads time to_bytes top top_io top_mem top_time totaldown totalup trashed_mails tztime uid_name unflagged_mails unforwarded_mails unreplied_mails unseen_mails updates upspeed upspeedf upspeedgraph uptime uptime_short user_names user_number user_terms user_times user_time utime voffset voltage_mv voltage_v weather wireless_ap wireless_bitrate wireless_essid wireless_link_bar wireless_link_qual wireless_link_qual_max wireless_link_qual_perc wireless_mode words xmms2_album xmms2_artist xmms2_bar xmms2_bitrate xmms2_comment xmms2_date xmms2_duration xmms2_elapsed xmms2_genre xmms2_id xmms2_percent xmms2_playlist xmms2_size xmms2_smart xmms2_status xmms2_timesplayed xmms2_title xmms2_tracknr xmms2_url
 
 hi def link ConkyrcComment   Comment
 hi def link ConkyrcSetting   Keyword

src/Makefile.am

@@ -56,7 +56,7 @@ mandatory_sources = colours.c colours.h combine.c combine.h common.c common.h \
 		mboxscan.h read_tcp.c read_tcp.h scroll.c scroll.h specials.c \
 		specials.h tailhead.c tailhead.h temphelper.c temphelper.h \
 		text_object.c text_object.h timeinfo.c timeinfo.h algebra.c \
-		algebra.h proc.c proc.h
+		algebra.h proc.c proc.h user.c user.h
 
 # source files only needed when the apropriate option is enabled
 audacious = audacious.c audacious.h

src/conky.c

@@ -81,6 +81,7 @@
 #include "entropy.h"
 #include "exec.h"
 #include "proc.h"
+#include "user.h"
 #ifdef X11
 #include "fonts.h"
 #endif
@@ -1812,6 +1813,13 @@ void generate_text_internal(char *p, int p_max_size,
 			OBJ(totalup) {
 				print_totalup(obj, p, p_max_size);
 			}
+			OBJ(uid_name) {
+				char buf[max_user_text];
+
+				generate_text_internal(buf, max_user_text, *obj->sub, cur);
+				obj->data.s = buf;
+				print_uid_name(obj, p, p_max_size);
+			}
 			OBJ(updates) {
 				snprintf(p, p_max_size, "%d", total_updates);
 			}

src/core.c

@@ -704,6 +704,9 @@ struct text_object *construct_text_object(const char *s, const char *arg, long
 	END OBJ_ARG(pid_fsgid, 0, "pid_fsgid needs a pid as argument")
 		obj->sub = malloc(sizeof(struct text_object));
 		extract_variable_text_internal(obj->sub, arg);
+	END OBJ_ARG(uid_name, 0, "uid_name needs a uid as argument")
+		obj->sub = malloc(sizeof(struct text_object));
+		extract_variable_text_internal(obj->sub, arg);
 	END OBJ(processes, &update_total_processes)
 	END OBJ(running_processes, &update_running_processes)
 #ifdef __linux__
@@ -1320,6 +1323,7 @@ void free_text_objects(struct text_object *root, int internal)
 			case OBJ_pid_egid:
 			case OBJ_pid_sgid:
 			case OBJ_pid_fsgid:
+			case OBJ_uid_name:
 				if(obj->sub) {
 					free_text_objects(obj->sub, 1);
 					free(obj->sub);

src/text_object.h

@@ -255,6 +255,7 @@ enum text_object_type {
 	OBJ_pid_egid,
 	OBJ_pid_sgid,
 	OBJ_pid_fsgid,
+	OBJ_uid_name,
 	OBJ_processes,
 	OBJ_running_processes,
 	OBJ_shadecolor,

src/user.c

@@ -0,0 +1,53 @@
+/* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
+ * vim: ts=4 sw=4 noet ai cindent syntax=c
+ *
+ * Conky, a system monitor, based on torsmo
+ *
+ * Any original torsmo code is licensed under the BSD license
+ *
+ * All code written since the fork of torsmo is licensed under the GPL
+ *
+ * Please see COPYING for details
+ *
+ * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
+ * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
+ *   (see AUTHORS)
+ * All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <logging.h>
+#include <pwd.h>
+#include <errno.h>
+#include "conky.h"
+
+void print_uid_name(struct text_object *obj, char *p, int p_max_size) {
+	struct passwd *pw;
+	uid_t uid;
+	char* firstinvalid;
+
+	errno = 0;
+	uid = strtol(obj->data.s, &firstinvalid, 10);
+	if (errno == 0 && obj->data.s != firstinvalid) {
+		pw = getpwuid(uid);
+		if(pw != NULL) {
+			snprintf(p, p_max_size, "%s", pw->pw_name);
+		} else {
+			NORM_ERR("The uid %d doesn't exist", uid)
+		}
+	} else {
+		NORM_ERR("$uid_name didn't receive a uid as argument")
+	}
+}

src/user.h

@@ -0,0 +1,31 @@
+/* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
+ * vim: ts=4 sw=4 noet ai cindent syntax=c
+ *
+ * Conky, a system monitor, based on torsmo
+ *
+ * Any original torsmo code is licensed under the BSD license
+ *
+ * All code written since the fork of torsmo is licensed under the GPL
+ *
+ * Please see COPYING for details
+ *
+ * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
+ * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
+ *   (see AUTHORS)
+ * All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+void print_uid_name(struct text_object *obj, char *p, int p_max_size);