| 0,0 → 1,149 |
|---|
| /* Functions for printing on console. */ |
| |
| |
| /* Methods: |
| * init_printing: connects to SERVICE_CONSOLE and initializes used data structures |
| * print_console: prints char* on console |
| * print_console_int: prints int argument with specified conversion inside input string |
| */ |
| |
| |
| #include <string.h> |
| #include <ipc/ipc.h> |
| #include <ipc/services.h> |
| #include <async.h> |
| #include "fs.h" |
| #include "../console/console.h" |
| |
| #define TOTAL_CONVERSIONS 5 |
| #define BUFF_SIZE 10 |
| |
| |
| /* Table of printing conversions for: d, i, u, c, %. */ |
| char conversions[TOTAL_CONVERSIONS]; |
| char format_string[3] = "%"; |
| |
| static int validate_string(char conv); |
| |
| int init_printing() |
| { |
| |
| /* Attempt to connect to SERVICE_CONSOLE fail. */ |
| if (!connect_to_con(&con_phone, CON_CONN_ATTEMPTS)) |
| return FALSE; |
| |
| conversions[0] = 'd'; |
| conversions[1] = 'i'; |
| conversions[2] = 'u'; |
| conversions[3] = 'c'; |
| conversions[4] = '%'; |
| |
| } |
| |
| int validate_string(char conv) |
| { |
| |
| int i; |
| |
| /* Check if the conversion character matches conversions table. */ |
| for (i = 0; i < TOTAL_CONVERSIONS; i++){ |
| if (conv == conversions[i]) { |
| return TRUE; |
| } |
| } |
| |
| return FALSE; |
| } |
| |
| int print_console(char *str) |
| { |
| |
| int i, len; |
| char c; |
| |
| /* Must be connected to the CONSOLE_SERVICE. */ |
| if (con_phone < 0) |
| return FALSE; |
| |
| len = strlen(str); |
| if (len == 0) |
| return TRUE; |
| |
| for (i = 0; i < len; i++) { |
| c = *str++; |
| async_req_2(con_phone, CONSOLE_PUTCHAR, c, 0, NULL, NULL); /* Do the work. */ |
| } |
| |
| return TRUE; |
| } |
| |
| int print_console_int(char *str, int arg) |
| { |
| |
| int i, retval, len, front_side, offset; |
| char conversion; |
| char buffer[BUFF_SIZE]; |
| char *front, *back; |
| |
| len = strlen(str); |
| |
| if (len == 0) |
| return TRUE; |
| |
| front = malloc((len+1) * sizeof(char)); |
| back = malloc((len+1) * sizeof(char)); |
| |
| front_side = TRUE; |
| |
| /* Copy front side of source string. */ |
| for (i = 0; i < len; i++) { |
| if (str[i] == '%') { |
| front_side = FALSE; |
| break; |
| } |
| front[i] = str[i]; |
| } |
| |
| /* Character '%' was not found. Print it in a normal way, without int argument. */ |
| if (front_side) { |
| return (print_console(str)); |
| } |
| |
| /* Character '%' was the last in the input string - error. */ |
| if (i == (len-1)) { |
| return FALSE; |
| } |
| |
| front[i] = '\0'; |
| conversion = str[++i]; |
| retval = validate_string(conversion); |
| |
| if (!retval) { |
| return FALSE; |
| } |
| |
| offset = ++i; |
| |
| /* Copy back side of source string. */ |
| for (;i < len; i++) { |
| back[i-offset] = str[i]; |
| } |
| |
| back[i] = '\0'; |
| |
| /* Two characters '%' in source string. */ |
| if (conversion == '%') { |
| print_console(front); |
| print_console(back); |
| return TRUE; |
| } |
| |
| /* Other 'normal' case. */ |
| print_console(front); |
| format_string[1] = conversion; |
| sprintf(buffer, format_string, arg); |
| print_console(buffer); |
| print_console(back); |
| |
| return TRUE; |
| } |