int
getData(FILE *inFile,char **inString) {
int len = 0;
int space = MAX_STRING;
int oneequal = false;
int c;
char *string = (char *) malloc(space);
string[len++]='M';
while ((c = getc(inFile)) != EOF) {
if (len >= space) {
char *newString;
space *= 2;
newString = (char *)realloc(string,space);
if (newString == NULL) {
ungetc(c,inFile);
break;
}
string = newString;
}
string[len++] = c;
if (!isatobchar(c)) {
if (c == '=') {
if (oneequal) {
break;
}
oneequal = true;
continue;
} else {
ungetc(c,inFile);
len--;
break;
}
}
if (oneequal) {
ungetc(c,inFile);
len--;
break;
}
}
if (len >= space) {
space += 2;
string = (char *)realloc(string,space);
}
string[len++] = 0;
*inString = string;
return true;
}
int
isBase64(char *inString)
{
unsigned int i;
unsigned char c;
for (i = 0; (c = inString[i]) != 0 && isatobchar(c); ++i)
;
if (c == '=') {
while ((c = inString[++i]) == '=')
; /* skip trailing '=' characters */
}
if (c && c != '\n' && c != '\r')
return false;
if (i == 0 || i % 4)
return false;
return true;
}
