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toxic/src/misc_tools.c

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/*
* Toxic -- Tox Curses Client
*/
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <limits.h>
#include "toxic_windows.h"
// XXX: FIX
unsigned char *hex_string_to_bin(char hex_string[])
{
size_t len = strlen(hex_string);
unsigned char *val = malloc(len);
if (val == NULL) {
endwin();
fprintf(stderr, "malloc() failed. Aborting...\n");
exit(EXIT_FAILURE);
}
char *pos = hex_string;
size_t i;
for (i = 0; i < len; ++i, pos += 2)
sscanf(pos, "%2hhx", &val[i]);
return val;
}
/* Get the current local time */
struct tm *get_time(void)
{
struct tm *timeinfo;
time_t now;
time(&now);
timeinfo = localtime(&now);
return timeinfo;
}
/* check that the string has one non-space character */
int string_is_empty(char *string)
{
int rc = 0;
char *copy = strdup(string);
rc = ((strtok(copy, " ") == NULL) ? 1 : 0);
free(copy);
return rc;
}
/* convert wide characters to null terminated string */
uint8_t *wcs_to_char(wchar_t *string)
{
size_t len = 0;
char *ret = NULL;
len = wcstombs(NULL, string, 0);
if (len != (size_t) -1) {
len++;
ret = malloc(len);
if (ret != NULL)
wcstombs(ret, string, len);
} else {
ret = malloc(2);
if (ret != NULL) {
ret[0] = ' ';
ret[1] = '\0';
}
}
if (ret == NULL) {
endwin();
fprintf(stderr, "malloc() failed. Aborting...\n");
exit(EXIT_FAILURE);
}
return ret;
}
/* convert a wide char to null terminated string */
char *wc_to_char(wchar_t ch)
{
int len = 0;
static char ret[MB_LEN_MAX + 1];
len = wctomb(ret, ch);
if (len == -1) {
ret[0] = ' ';
ret[1] = '\0';
} else {
ret[len] = '\0';
}
return ret;
}