int main(int argc, char *argv[]){
char str[1024];
int num = 0;
int format = HEX;
char opt;
memset(str, 0, 1024);
while((opt=getopt(argc, argv, "oxb")) != -1){
switch(opt){
case 'o': format = OCT;
break;
case 'x': format = HEX;
break;
case 'b': format = BIN;
break;
default: usage(argv[0]);
}
}
if(optind >= argc){
scanf("%s", str);
} else {
strcpy(str, argv[optind]);
}
switch(format){
case HEX: num = htoi(str);
break;
case OCT: num = otoi(str);
break;
case BIN: num = btoi(str);
break;
default: num = -1;
}
if(num == -1){
fprintf(stderr, "Error: incorrectly formatted string %s\n", str);
return EXIT_FAILURE;
}
printf("%d\n", num);
return 0;
}
Char myesc(Char *array)
{
Char c, esc_char;
switch ( array[1] )
{
case 'b': return '\b';
case 'f': return '\f';
case 'n': return '\n';
case 'r': return '\r';
case 't': return '\t';
#if __STDC__
case 'a': return '\a';
case 'v': return '\v';
#else
case 'a': return '\007';
case 'v': return '\013';
#endif
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
{ /* \<octal> */
int sptr = 1;
while ( isascii( array[sptr] ) &&
isdigit( array[sptr] ) )
/* Don't increment inside loop control
* because if isdigit() is a macro it might
* expand into multiple increments ...
*/
++sptr;
c = array[sptr];
array[sptr] = '\0';
esc_char = otoi( array + 1 );
array[sptr] = c;
return esc_char;
}
case 'x':
{ /* \x<hex> */
int sptr = 2;
while ( isascii( array[sptr] ) &&
isxdigit( (char) array[sptr] ) )
/* Don't increment inside loop control
* because if isdigit() is a macro it might
* expand into multiple increments ...
*/
++sptr;
c = array[sptr];
array[sptr] = '\0';
esc_char = htoi( array + 2 );
array[sptr] = c;
return esc_char;
}
default:
return array[1];
}
}
int
main(int argc, char **argv)
{
int c;
int c1, c2;
(void) setlocale(LC_ALL, "");
#if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
#define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
#endif
(void) textdomain(TEXT_DOMAIN);
while ((c = getopt(argc, argv, "ls")) != EOF)
switch (c) {
case 'l':
lflg = 2;
break;
case 's':
lflg = 0;
break;
case '?':
default:
narg();
}
argv += optind;
argc -= optind;
if (argc < 2 || argc > 4)
narg();
arg = argv[0];
if (arg[0] == '-' && arg[1] == 0)
file1 = stdin;
else if ((file1 = fopen(arg, "r")) == NULL)
barg();
arg = argv[1];
if (arg[0] == '-' && arg[1] == 0)
file2 = stdin;
else if ((file2 = fopen(arg, "r")) == NULL)
barg();
if (file1 == stdin && file2 == stdin)
narg();
if (argc > 2)
skip1 = otoi(argv[2]);
if (argc > 3)
skip2 = otoi(argv[3]);
while (skip1) {
if ((c1 = getc(file1)) == EOF) {
arg = argv[0];
earg();
}
skip1--;
}
while (skip2) {
if ((c2 = getc(file2)) == EOF) {
arg = argv[1];
earg();
}
skip2--;
}
for (;;) {
chr++;
c1 = getc(file1);
c2 = getc(file2);
if (c1 == c2) {
if (c1 == '\n')
line++;
if (c1 == EOF) {
if (eflg)
return (1);
return (0);
}
continue;
}
if (lflg == 0)
return (1);
if (c1 == EOF) {
arg = argv[0];
earg();
}
if (c2 == EOF)
earg();
if (lflg == 1) {
(void) printf(
gettext("%s %s differ: char %lld, line %lld\n"),
argv[0], arg, chr, line);
return (1);
}
eflg = 1;
(void) printf("%6lld %3o %3o\n", chr, c1, c2);
}
}
