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linux_logo.c
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/*-------------------------------------------------------------------------*\
LINUX LOGO 5.11 - Creates Nifty Logo With System Info - 15 November 2010
by Vince Weaver ([email protected], http://www.deater.net/weave )
A program to display text/ansi logos with system information.
Thanks to many, many people who sent patches in.
See the CHANGES file for a list of all those who helped out.
\*-------------------------------------------------------------------------*/
#define VERSION "5.11"
#include <stdio.h>
#include <stdlib.h> /* calloc() */
#include <string.h> /* strdup() */
#include <sys/time.h> /* time() */
#include <locale.h>
#define ESCAPE "\033"
#include "sysinfo.h"
#include "linux_logo.h"
#include "logo_types.h"
#include "load_logo.h"
#if (USE_I18N==1)
#undef __OPTIMIZE__
#include <libintl.h>
#define _(String) gettext((String))
#else
#define _(String) (String)
#endif
/* Change the values in the below file to alter default behavior */
#include "defaults.h"
/* Some global variables. Possibly bad in practice, but it saves a lot *\
\* of paramater passing, which has caused bugs to develop before. */
struct logo_info *logo_info_head = NULL;
struct logo_info *logo_info_tail = NULL;
char *vmw_strcat(char *dest, char *src, int space_remaining) {
if (strlen(src) >= space_remaining) {
fprintf(stderr,"Error! Not enough room in string!\n\n");
exit(1);
}
return strcat(dest,src);
}
/* Convert a number into an ordinal string */
static void strcat_ordinal(int value,char *string, int space) {
switch(value) {
case 0: vmw_strcat(string,_("Zero"),space); break;
case 1: vmw_strcat(string,_("One"),space); break;
case 2: vmw_strcat(string,_("Two"),space); break;
case 3: vmw_strcat(string,_("Three"),space); break;
case 4: vmw_strcat(string,_("Four"),space); break;
case 5: vmw_strcat(string,_("Five"),space); break;
case 6: vmw_strcat(string,_("Six"),space); break;
case 7: vmw_strcat(string,_("Seven"),space); break;
case 8: vmw_strcat(string,_("Eight"),space); break;
case 9: vmw_strcat(string,_("Nine"),space); break;
default: vmw_strcat(string,_("Many"),space); break;
}
}
/* setup the default logos, which are always present */
static void setup_default_logos() {
struct logo_info *new_logo;
#include "load_logos.h"
}
/* Setup the "settings" structure to some defaults */
/* Edit the "defaults.h" file to change these */
static void setup_info(struct linux_logo_info_type *settings) {
settings->width=DEFAULT_WIDTH; /* Defaults to 80 */
settings->no_periods=DEFAULT_NO_PERIODS; /* Defaults to None */
settings->preserve_xy=DEFAULT_PRESERVE_XY; /* Defaults to Off */
settings->skip_bogomips=DEFAULT_SKIP_BOGOMIPS; /* Defaults to No */
settings->offset=DEFAULT_OFFSET; /* Defaults to 0 */
settings->plain_ascii=DEFAULT_PLAIN_ASCII; /* Defaults to No */
settings->banner_mode=DEFAULT_BANNER_MODE; /* Defualts to Yes */
settings->wipe_screen=DEFAULT_WIPE_SCREEN; /* Defaults to No */
settings->show_uptime=DEFAULT_SHOW_UPTIME; /* Defaults to No */
settings->show_load=DEFAULT_SHOW_LOAD; /* Defaults to No */
settings->narrow_logo=DEFAULT_NARROW_LOGO; /* Defaults to No */
settings->pretty_output=DEFAULT_PRETTY_OUTPUT; /* Defaults to Yes */
set_pretty_printing(DEFAULT_PRETTY_OUTPUT);
settings->display_logo_only=0;
settings->display_sysinfo_only=0;
settings->display_usertext=0;
settings->custom_format=0;
settings->center_sysinfo=1;
settings->user_text[0]=0;
settings->format[0]=0;
}
/* Use ansi codes or spaces to shift the cursor to the right */
static void shift_right(int shift,int plain_ascii) {
int i;
if (shift<=0) return;
if (plain_ascii) {
for(i=0;i<shift;i++) {
putchar(' ');
}
}
else {
printf("\033[%iC",shift);
}
}
/* Prints a string, but stops at a newline or end of string */
static char *print_line(char *string) {
char *temp_st=string;
if (temp_st==NULL) return NULL;
while ((*temp_st!='\n') && (*temp_st!='\0')) {
putchar(*temp_st);
temp_st++;
}
if ((*temp_st)=='\n') {
return temp_st+1;
}
else return NULL;
}
/* print enough chars to center text of given size */
static void center(int size,int width,int plain_ascii) {
int i;
i=((width-size)/2);
shift_right(i,plain_ascii);
}
/* Uses escape codes to clear the screen */
static void clear_screen(int plain_ascii) {
if (!plain_ascii) {
printf("\033[2J\033[0;0H\n");
}
else {
/* clear the screen some other way? */
}
}
/* Change uptime seconds into time string */
static void strcat_uptime(int seconds,char *string, int space) {
int up_days,up_hrs,up_mins;
char temp_string[BUFSIZ],final_string[BUFSIZ];
up_days=seconds/86400;
up_hrs=(seconds-(up_days*86400))/3600;
up_mins=(seconds-(up_days*86400)-(up_hrs*3600))/60;
final_string[0]=0;
vmw_strcat(final_string,_("Uptime "),BUFSIZ);
if (up_days>0) {
snprintf(temp_string,BUFSIZ,"%d %s ",
up_days,(up_days==1 ? _("day"):_("days")));
vmw_strcat(final_string,temp_string,BUFSIZ-strlen(final_string));
}
if (up_hrs>0) {
snprintf(temp_string,BUFSIZ,"%d %s ",
up_hrs,(up_hrs==1 ? _("hour"):_("hours")));
vmw_strcat(final_string,temp_string,BUFSIZ-strlen(final_string));
}
if (up_mins>0) {
snprintf(temp_string,BUFSIZ,"%d %s",
up_mins,(up_mins==1 ? _("minute"):_("minutes")));
vmw_strcat(final_string,temp_string,BUFSIZ-strlen(final_string));
}
vmw_strcat(string,final_string,space);
}
/* Prints the help */
static void help_message(char *binname, char full) {
char temp_version[BUFSIZ];
printf("\nLinux Logo Version %s using libsysinfo %s\n",VERSION,
get_sysinfo_version(temp_version));
printf("\tby Vince Weaver <[email protected]>\n");
printf(" Newest Versions at:\n");
printf(" http://www.deater.net/weave/vmwprod/linux_logo\n");
printf(" http://metalab.unc.edu/pub/Linux/logos/penguins\n\n");
if (!full) exit(0);
printf("Usage: %s [-a] [-b] [-c] [-d] [-D file] [-e file] [-f] "
"[-g]\n"
" [-h] [-i] [-k] [-l] [-n] [-o num] [-p] [-s] [-t str] "
"[-u] [-v]\n"
" [-w Num] [-x] [-y] [-F format] "
"[-L num | NAME | list | random_xy]\n",binname);
printf(" [-a] -- Display an ascii-only Logo\n");
printf(" [-b] -- Display a Banner Logo!\n");
printf(" [-c] -- Display a \"Classic\" type logo\n");
printf(" [-d] -- disable \"prettying\" of output\n");
printf(" [-D file]-- use custom logo from \"file\"\n");
printf(" [-e file]-- Use \"file\" instead of /proc/cpuinfo [for "
"debugging]\n");
printf(" [-f] -- force the screen clear before drawing\n");
printf(" [-F format] Format output. See README.\n");
printf(" B [-g] -- give system info only\n");
printf(" [-h] -- this help screen\n");
printf(" [-i] -- ignore ~/.linux_logo and /etc/linux_logo.conf\n");
printf(" [-k] -- keep sysinfo flushed-left (non-centered)\n");
printf(" B [-l] -- display logo only\n");
printf(" C [-o Num] -- offset output Num spaces to the right\n");
printf(" [-p] -- preserve cursor location\n");
printf(" [-s] -- skip Bogomips [speeds up on non-Linux "
"platforms]\n");
printf(" [-t str] -- display user-supplied string\n");
printf(" * [-u] -- show uptime\n");
printf(" [-v] -- version information\n");
printf(" [-w Num] -- set width of screen to Num [default 80]\n");
printf(" * [-y] -- show load average\n");
printf(" [-L num | NAME | list | random_xy] -- multiple Logo options. See README\n\n");
printf(" B=Banner mode only, C=Classic Mode Only *=Works Only in Linux"
"\n\n");
}
/* The nifty customizable sysinfo parser */
static int generate_sysinfo(
char ***string,
struct linux_logo_info_type *settings) {
struct os_info_type os_info;
struct cpu_info_type cpu_info;
int x=0,len,line=0;
char temp_string[BUFSIZ],hostname[BUFSIZ],domain[BUFSIZ];
char temp_line[BUFSIZ];
float load_1,load_5,load_15;
char **temp_sysinfo;
char char_string[2]={0,0};
int allocated_lines=10;
long long mem_size=0;
double megahertz=0.0;
/* Get the system info */
get_os_info(&os_info);
get_cpu_info(&cpu_info);
len=strlen(settings->format);
/* allocate 10 lines to start with */
temp_sysinfo=calloc(allocated_lines,sizeof(char *));
while (x<len) {
/* clear out our line */
temp_line[0]=0;
/* handle a line */
while (settings->format[x]!='\n') {
/* If not a #, then just print the character */
if (settings->format[x]!='#') {
char_string[0]=*((settings->format)+x);
vmw_strcat(temp_line,char_string,BUFSIZ-strlen(temp_line));
}
else {
x++;
if (x>len) break;
switch(settings->format[x]) {
/* double # just prints a # */
case '#': vmw_strcat(temp_line,"#",BUFSIZ-strlen(temp_line)); break;
/* #B prints the bogomips */
/* If really high, don't print fractional part */
case 'B': if (cpu_info.bogomips<10000.0) {
snprintf(temp_string,BUFSIZ,"%.2f",cpu_info.bogomips);
}
else {
snprintf(temp_string,BUFSIZ,"%.0f",cpu_info.bogomips);
}
vmw_strcat(temp_line,temp_string,BUFSIZ-strlen(temp_line));
break;
/* #C prints OS revision */
case 'C': vmw_strcat(temp_line,os_info.os_revision,
BUFSIZ-strlen(temp_line));
break;
/* #E prints user text */
case 'E': vmw_strcat(temp_line,settings->user_text,
BUFSIZ-strlen(temp_line));
break;
/* #H prints hostname */
case 'H': vmw_strcat(temp_line,get_host_name(hostname,domain),
BUFSIZ-strlen(temp_line));
break;
/* #L prints load average */
case 'L': get_load_average(&load_1,&load_5,&load_15);
snprintf(temp_string,BUFSIZ,"%s %.2f, %.2f, %.2f",
_("Load Average"),load_1,load_5,load_15);
vmw_strcat(temp_line,temp_string,BUFSIZ-strlen(temp_line));
break;
/* #M prints Megahertz */
case 'M': megahertz=get_cpu_mhz();
if (megahertz>0.0) {
if (megahertz>999.0) {
snprintf(temp_string,BUFSIZ,"%.3gGHz",
megahertz/1000.0);
}
else {
snprintf(temp_string,BUFSIZ,"%.3gMHz",
megahertz);
}
vmw_strcat(temp_line,temp_string,
BUFSIZ-strlen(temp_line));
}
else {
/* No megahertz. Back up the pointer. */
/* This is a hack to avoid extra spaces in the output */
if (strlen(temp_line)>0) {
temp_line[strlen(temp_line)-1]=0;
}
}
break;
/* #N prints number of CPUs */
/* Spelled out if it is less than 10 */
/* The actual number if less than 100,000 */
/* The word "Many" if more than 100,000 */
case 'N': if (cpu_info.num_cpus<=9) {
strcat_ordinal(cpu_info.num_cpus,temp_line,
BUFSIZ-strlen(temp_line));
}
else if (cpu_info.num_cpus<=99999) {
snprintf(temp_string,BUFSIZ,"%d",cpu_info.num_cpus);
vmw_strcat(temp_line,temp_string,
BUFSIZ-strlen(temp_line));
}
else {
strcat_ordinal(10,temp_line,
BUFSIZ-strlen(temp_line));
}
break;
/* #O prints the OS name */
case 'O': vmw_strcat(temp_line,os_info.os_name,
BUFSIZ-strlen(temp_line));
break;
/* #P prints "Processor" or its plural. Sort of a hack */
/* This probably doesn't work with all languages */
case 'P': if (cpu_info.num_cpus!=1) {
vmw_strcat(temp_line,_(PROCESSOR_PLURAL),
BUFSIZ-strlen(temp_line));
}
else {
vmw_strcat(temp_line,_(PROCESSOR_SINGULAR),
BUFSIZ-strlen(temp_line));
}
break;
/* #R prints the amount of memory */
case 'R': mem_size=get_mem_size();
if (mem_size>1023*1024*1024) {
snprintf(temp_string,BUFSIZ,"%.2gPB",
((double)mem_size)/(1024.0*1024.0*1024.0));
}
else if (mem_size>1023*1024*10) {
snprintf(temp_string,BUFSIZ,"%.3gTB",
((double)mem_size)/(1024.0*1024.0));
}
else if (mem_size>1023*1024) {
snprintf(temp_string,BUFSIZ,"%.2gTB",
((double)mem_size)/(1024.0*1024.0));
}
else if (mem_size>1023*10) {
snprintf(temp_string,BUFSIZ,"%.3gGB",
((double)mem_size/1024.0));
}
else if (mem_size>1023) {
snprintf(temp_string,BUFSIZ,"%.2gGB",
((double)mem_size/1024.0));
} else {
snprintf(temp_string,BUFSIZ,"%lldM",mem_size);
}
vmw_strcat(temp_line,temp_string,
BUFSIZ-strlen(temp_line));
break;
/* #S prints "s" if CPU's are more than 1. DEPRECATED */
case 'S': if (cpu_info.num_cpus!=1) {
vmw_strcat(temp_line,"s",BUFSIZ-strlen(temp_line));
}
break;
/* #T prints the CPU type */
case 'T': vmw_strcat(temp_line,cpu_info.chip_type,
BUFSIZ-strlen(temp_line));
break;
/* #U prints the uptime */
case 'U': strcat_uptime(get_uptime(),temp_line,
BUFSIZ-strlen(temp_line));
break;
/* #V prints the OS version */
case 'V': vmw_strcat(temp_line,os_info.os_version,
BUFSIZ-strlen(temp_line));
break;
/* #X Prints the CPU vendor */
case 'X': if (!strncmp(cpu_info.chip_vendor,"Unknown",7)) {
if (strlen(temp_line)>0) {
temp_line[strlen(temp_line)-1]=0;
}
}
else {
vmw_strcat(temp_line,cpu_info.chip_vendor,
BUFSIZ-strlen(temp_line));
}
break;
default: fprintf(stderr,"\nInvalid format '#%c'\n",
settings->format[x]);
}
}
x++;
if (x>=len) break;
}
temp_sysinfo[line]=strdup(temp_line);
line++;
/* If we are using more than the pre-allocated amount */
/* allocate more lines */
if (line>=allocated_lines) {
temp_sysinfo=realloc(temp_sysinfo,sizeof(char *)*(line+1));
allocated_lines=line;
}
/* skip the newline */
x++;
}
*string=temp_sysinfo;
return line;
}
/* The Main Drawing Routine */
static void draw_logo(struct logo_info *logo_override,
struct linux_logo_info_type *settings) {
struct logo_info *our_logo_info;
char *string_point;
int i,ysize,sysinfo_length=0;
char **sysinfo_string;
sysinfo_length=generate_sysinfo(&sysinfo_string,settings);
if (logo_info_head==NULL) {
printf("\n\nNo logos available!!\n");
return;
}
if (logo_override!=NULL) {
our_logo_info=logo_override;
}
else { /* Search for a proper logo! */
our_logo_info=logo_info_head;
while (1) {
if (our_logo_info==NULL) {
printf("\nAppropriate logo not found!\n\n");
return;
}
if ((settings->banner_mode) &&
(our_logo_info->sysinfo_position==SYSINFO_BOTTOM)) {
if (settings->plain_ascii) {
if (our_logo_info->ascii_logo!=NULL) {
break;
}
}
else { /* Not ascii */
if (our_logo_info->logo!=NULL) {
break;
}
}
}
if ((!settings->banner_mode) &&
(our_logo_info->sysinfo_position==SYSINFO_RIGHT)) { /* Classic mode */
if (settings->plain_ascii) {
if (our_logo_info->ascii_logo!=NULL) {
break;
}
} else { /* Not ascii */
if (our_logo_info->logo!=NULL) {
break;
}
}
}
our_logo_info=our_logo_info->next_logo;
}
}
if (settings->width<80) settings->width=80; /* Right now we don't */
/* handle width < 80 */
if (settings->wipe_screen) clear_screen(settings->plain_ascii);
/* Select the proper logo */
if (settings->plain_ascii) {
ysize=our_logo_info->ascii_ysize;
if (our_logo_info->ascii_logo==NULL) {
printf("\nSpecified logo has no ascii version!\n\n");
return;
}
else string_point=our_logo_info->ascii_logo;
}
else {
ysize=our_logo_info->ysize;
if (our_logo_info->logo==NULL) {
printf("\nSpecified logo has no non-ascii version!\n\n");
return;
}
else string_point=our_logo_info->logo;
}
/* Draw the logos */
if (!settings->display_sysinfo_only) {
if (settings->banner_mode) { /* Banner mode */
for(i=0;i<ysize;i++) {
shift_right((settings->width-80)/2,settings->plain_ascii);
string_point=print_line(string_point);
printf("\n");
}
if (!settings->display_logo_only) printf("\n");
}
else { /* Classic mode logo */
/* Print the first 7 lines of logo */
if (ysize<7) {
printf("\nError! Classic logos must be at least 7 lines long!\n");
}
if (!settings->plain_ascii) printf("\033[40m\033[40m\n");
for(i=0;i<7;i++) {
shift_right(settings->offset,settings->plain_ascii);
string_point=print_line(string_point);
printf("\n");
}
/* The next lines can have cpuinfo after them */
for(i=7;i<ysize;i++) {
shift_right(settings->offset,settings->plain_ascii);
string_point=print_line(string_point);
shift_right(2,settings->plain_ascii);
if (i-7<sysinfo_length) {
if (!settings->plain_ascii) printf("\033[1;37;40m");
printf("%s",sysinfo_string[i-7]);
if (!settings->plain_ascii) printf("\033[0m");
}
printf("\n");
}
}
}
/* Print the sysinfo if we haven't already */
if (!settings->display_logo_only) {
if (settings->banner_mode) {
for(i=0;i<sysinfo_length;i++) {
if (settings->center_sysinfo) {
center(strlen(sysinfo_string[i]),settings->width,
settings->plain_ascii);
}
if (!settings->plain_ascii) printf("\033[1;37;40m");
printf("%s",sysinfo_string[i]);
if (!settings->plain_ascii) printf("\033[0m");
printf("\n");
}
printf("\n");
}
}
/* Restore cursor color to normal */
if (!settings->plain_ascii) {
printf("\033[0m\033[255D");
}
}
static char *get_arg(int *index,int argc,char **argv) {
char *argument;
if (argv[*index][2]=='\0') {
(*index)++;
if (*index>=argc) {
argument=NULL;
printf("Missing parameter to option -%c\n\n",argv[(*index)-1][1]);
exit(1);
}
else {
argument=argv[*index];
}
}
else {
argument=&(argv[*index][2]);
}
return argument;
}
/**************************/
/* logo support functions */
/**************************/
/* global variables, a bit of a hack, should find a better way */
int logo_num=0,random_logo=0,want_list_logos=0;
char random_banner='e',random_ascii='e',*logo_name=NULL,*logo_disk=NULL;
/* Find a logo by name */
static struct logo_info *get_logo_by_name(char *logo_name) {
static struct logo_info *custom_logo;
custom_logo=logo_info_head;
while(custom_logo!=NULL) {
if (!strcmp(custom_logo->name,logo_name)) {
return custom_logo;
}
custom_logo=custom_logo->next_logo;
}
fprintf(stderr,"Error! No logo with the name %s is available!\n",logo_name);
return NULL;
}
/* Find a logo by number */
static struct logo_info *get_logo_by_number(int logo_num) {
int i;
static struct logo_info *custom_logo;
custom_logo=logo_info_head;
i=1;
while (i<logo_num) {
if (custom_logo->next_logo==NULL) {
fprintf(stderr,"\nError! Logo %d is invalid! \"linux_logo -L list\""
" lists valid logo numbers.\n\n",logo_num);
custom_logo=logo_info_head;
break;
}
custom_logo=custom_logo->next_logo;
i++;
}
return custom_logo;
}
/* find a random logo */
static struct logo_info *get_random_logo(int random_banner,
int random_ascii,
struct linux_logo_info_type *settings) {
struct timeval time_time;
int i,logo_found;
static struct logo_info *custom_logo;
gettimeofday(&time_time,NULL);
srand(time_time.tv_usec); /* Not really random, but... */
i=rand()%1024; /* Hopefully we have less than 1024 logos FIXME */
custom_logo=logo_info_head;
while(i) {
if (custom_logo->next_logo==NULL) custom_logo=logo_info_head;
else custom_logo=custom_logo->next_logo;
i--;
}
i=0;
while (i<2) {
logo_found=1;
if (random_banner=='b') { /* Want banner mode */
if (!custom_logo->sysinfo_position) logo_found=0;
else settings->banner_mode=1;
}
if (random_banner=='c') { /* Want classic mode */
if (custom_logo->sysinfo_position) logo_found=0;
else settings->banner_mode=0;
}
if (random_banner=='e') { /* Want either */
/* we should be OK */
}
if (random_ascii=='e') { /* Any logo at all */
settings->plain_ascii=rand()%2;
if (custom_logo->ascii_logo==NULL) {
settings->plain_ascii=!settings->plain_ascii;
}
}
if (random_ascii=='a') { /* Want Ascii */
if (custom_logo->ascii_logo==NULL) logo_found=0;
else settings->plain_ascii=1;
}
if (random_ascii=='n') { /* Want non-ascii */
if (custom_logo->logo==NULL) logo_found=0;
else settings->plain_ascii=0;
break;
}
if (logo_found) break;
if (custom_logo->next_logo==NULL) {
custom_logo=logo_info_head;
i++;
}
else custom_logo=custom_logo->next_logo;
}
if (i>1) {
printf("\nSorry, can't generate random logo of that type.\n\n");
exit(1);
}
return custom_logo;
}
/* list the logos */
static void list_logos() {
int i;
struct logo_info *temp_logo;
printf("\nAvailable Built-in Logos:\n");
printf("\tNum\tType\tAscii\tName\t\tDescription\n");
temp_logo=logo_info_head;
i=1;
while (temp_logo!=NULL) {
printf("\t%d",i);
if (temp_logo->sysinfo_position) printf("\tBanner");
else printf("\tClassic");
if (temp_logo->ascii_logo!=NULL) printf("\tYes");
else printf("\tNo");
printf("\t%s",temp_logo->name);
if (strlen(temp_logo->name)<8) printf("\t");
printf("\t%s\n",temp_logo->description);
temp_logo=temp_logo->next_logo;
i++;
}
printf("\nDo \"linux_logo -L num\" where num is from "
"above to get the appropriate logo.\n");
printf("Remember to also use -a to get ascii version.\n\n");
exit(0);
}
/*******************************************************/
/* Parse options (from file or command line arguments) */
/*******************************************************/
static void parse_command_line(struct linux_logo_info_type *settings,
int argc, char **argv) {
int i,x,string_size;
char *endptr,*argument;
int index=1,option;
char *temp_st;
if (argc<2) return;
while (1) {
if (argv[index][0]!='-') {
printf("Unknown parameter %s\n",argv[index]);
exit(1);
}
option=argv[index][1];
switch (option) {
case 'a': settings->plain_ascii=1;
break;
case 'b': settings->banner_mode=1;
break;
case 'c': settings->banner_mode=0;
break;
case 'd': settings->pretty_output=0;
set_pretty_printing(0);
break;
case 'D': argument=get_arg(&index,argc,argv);
logo_disk=strdup(argument);
logo_name=NULL;
break;
case 'e': argument=get_arg(&index,argc,argv);
set_cpuinfo_file(argument);
break;
case 'f': settings->wipe_screen=1;
break;
case 'F': argument=get_arg(&index,argc,argv);
string_size=strlen(argument);
if (string_size==0) break;
settings->custom_format=1;
strncpy(settings->format,argument,BUFSIZ);
/* Decode the \n's. */
/* Should I decode other \ codes? */
/* also, \ codes are always smaller, hence why */
/* we can overwrite our own buffer */
i=0; x=0;
while(i<strlen(settings->format)) {
if (settings->format[i]=='\\') {
switch(settings->format[i+1]) {
case 'n': settings->format[x]='\n'; i++; break;
default: settings->format[x]='\\'; break;
}
}
else {
settings->format[x]=settings->format[i];
}
i++; x++;
}
settings->format[x]='\0';
break;
case 'g': settings->display_sysinfo_only=1;
break;
case 'h':
case '?': help_message(argv[0], 1);
exit(0);
break;
/* FIXME */
case 'i': /* is it even possible to do this right? */
/* we'd have to do two passes, possibly */
/* resetting to defaults in between */
/*ignore_config_file=1; */
break;
case 'k': settings->center_sysinfo=0;
break;
case 'l': settings->display_logo_only=1;
break;
case 'L': argument=get_arg(&index,argc,argv);
/* Reset values in case we get this after reading */
/* the file */
logo_num = 1; random_logo = 0;
logo_num=strtol(argument,&endptr,10);
if ( endptr == argument ) {
/* we leak temp_st, need to fix */
temp_st=strdup(argument);
if (!strncmp(temp_st,"list",4)) {
want_list_logos=1;
}
else if (!strncmp(temp_st,"random",6)) {
random_logo=1;
if (strlen(temp_st)>7) {
random_banner=temp_st[7];
}
if (strlen(temp_st)>8) {
random_ascii=temp_st[8];
}
}
else {
logo_name=strdup(temp_st);
}
}
else { /* It's a number. Override any name */
logo_name=NULL;
}
break;
case 'n': settings->no_periods=1;
break;
case 'o': argument=get_arg(&index,argc,argv);
settings->offset=strtol(argument,&endptr,10);
if ( endptr == argument ) {
printf("Invalid offset length %s\n\n",argument);
exit(1);
}
break;
case 'p': settings->preserve_xy=1;
break;
case 's': settings->skip_bogomips=1;
break;
case 't': argument=get_arg(&index,argc,argv);
settings->display_usertext=1;
strncpy(settings->user_text,argument,BUFSIZ);
break;
case 'u': settings->show_uptime=1;
break;
case 'v': help_message(argv[0], 0);
exit(0);
break;
case 'w': argument=get_arg(&index,argc,argv);
settings->width=strtol(argument,&endptr,10);
if ( endptr == argument ) {
printf("Invalid width %s\n\n",argument);
exit(1);
}
break;
case 'y': settings->show_load=1;
break;
default: printf("Unknown option -%c\n",option);
exit(1);
}
index++;
if (index>=argc) break;
}
}
/* Look for ~/.linux_logo or /etc/linux_logo config files */
void read_config_file(struct linux_logo_info_type *settings) {
int string_size,valid_string=0,i,size=0,counter=0;
int fake_data_offset=0,ch,oldch,in_quote=0,fake_argc=0;
char *tempst,*fake_data,**fake_argv;
FILE *config_file=NULL;
char config_string[BUFSIZ];
char config_filename[]="/.linux_logo";
/* Check for the files */
/* look for ~/.linux_logo */
if (getenv("HOME")) {
string_size=strlen(getenv("HOME"));
tempst=calloc(strlen(config_filename)+string_size+1,sizeof(char));
strncpy(tempst,getenv("HOME"),string_size);
strncat(tempst,config_filename,strlen(config_filename));
config_file=fopen(tempst,"r");
free(tempst); /* free the calloc's! */
}
/* if no ~/.linux_logo, check for /etc/linux_logo.conf */
if (config_file==NULL) {
config_file=fopen("/etc/linux_logo.conf","r");
}
/* If no config files, just make do with command-line arguments */
/* Note to Vince of 2000.. this was the most horrible */
/* atrocity of code ever. -- Vince of 2006 */
/* It should be a lot better now. -- Vince of 2007 */
if (config_file!=NULL) {
/* skip over whitespace and comments */
while(!valid_string) {
if (fgets(config_string,BUFSIZ,config_file)) {
for(i=0;i<strlen(config_string);i++) {
if (config_string[i]=='#') break; /* a comment */
else if (config_string[i]=='\n') break; /* empty line */
else if (config_string[i]==' ' || config_string[i]=='\t'); /* whitespace */
else {
valid_string=1;
break;
}
}
}
if (feof(config_file)) break;
}
if (valid_string) {
size=strlen(config_string);
config_string[size-1]='\0'; /* get rid of trailing \n */
/* create room for the fake command-line */
fake_data=calloc(size+12,sizeof(char));
/* stick "linux_logo" as argv[0] */
strncpy(fake_data,"linux_logo ",11);
fake_data_offset=11;
vmw_strcat(fake_data,config_string,size);
ch=' ';
for(i=0;i<size;i++) {
oldch=ch;
ch=config_string[i]; /* start after linux_logo */
/* if after a space, and not in a quote, begin a new token */
if ((oldch==' ') && (!in_quote) && (ch!=' ')) {
if (fake_data_offset>0) fake_data[fake_data_offset]='\0';
fake_data_offset++;
fake_argc++;
}
/* The shell strips quotes and excess whitespace */
/* thought for now we just strip spaces outside of quotations */
if ((ch!='\"') && ((ch!=' ') || ((ch==' ') && (in_quote)))) {