int main(int argc, char *argv[])
{
int ofd = 1;
int i = 1;
char *s1, *s2;
int len = 0;
char *cbuf;
int clen;
while (i < argc && argv[i][0] == '-') {
if (argv[i][1] == 'I')
cpp_addpath(argv[i][2] ? argv[i] + 2 : argv[++i]);
if (argv[i][1] == 'D') {
char *name = argv[i] + 2;
char *def = "";
char *eq = strchr(name, '=');
if (eq) {
*eq = '\0';
def = eq + 1;
}
cpp_define(name, def);
}
i++;
}
if (i + 1 >= argc) {
printf("usage: npp [-I idir] [-D define] input output\n");
return 0;
}
if (cpp_init(argv[i++]))
die("npp: cannot open <%s>\n", argv[i - 1]);
ofd = open(argv[i++], O_WRONLY | O_TRUNC | O_CREAT, 0600);
if (ofd < 0)
die("npp: cannot open <%s>\n", argv[i - 1]);
s1 = malloc(OBUFSZ);
s2 = malloc(OBUFSZ);
if (!s1 || !s2)
die("npp: cannot allocate enough memory\n");
while (!cpp_read(&cbuf, &clen)) {
memcpy(s1 + len, cbuf, clen);
len += clen;
}
len = rmcomments(s2, s1, len);
xwrite(ofd, s2, len);
close(ofd);
return 0;
}
static int __init link_init(void)
{
return cpp_init();
}