static void append_line(char **contents, size_t *len, char *line, ssize_t linelen)
{
size_t newlen = *len + linelen;
dorealloc(contents, *len, newlen + 1);
memcpy(*contents + *len, line, linelen+1);
*len = newlen;
}
int
fillbuf(Source *s)
{
int n;
while((char *)s->inl+s->ins/8 > (char *)s->inb+s->ins) {
int l = s->inl - s->inb;
int p = s->inp - s->inb;
if(l < 0)
error(FATAL, "negative end of input!?");
if(p < 0)
error(FATAL, "negative input pointer!?");
/* double the buffer size and try again */
s->ins *= 2;
s->inb = dorealloc(s->inb, s->ins);
s->inl = s->inb + l;
s->inp = s->inb + p;
}
if (s->fd<0 || (n=read(s->fd, (char *)s->inl, s->ins/8)) <= 0)
n = 0;
if ((*s->inp&0xff) == EOB) /* sentinel character appears in input */
*s->inp = EOFC;
s->inl += n;
s->inl[0] = s->inl[1]= s->inl[2]= s->inl[3] = EOB;
if (n==0) {
s->inl[0] = s->inl[1]= s->inl[2]= s->inl[3] = EOFC;
return EOF;
}
return 0;
}
/*
* Add an entry to the inode table, realloc'ing it if needed.
*/
static
void
inode_addtable(uint32_t ino, int type)
{
unsigned newmax;
assert(ninodes <= maxinodes);
if (ninodes == maxinodes) {
newmax = maxinodes ? maxinodes * 2 : 4;
inodes = dorealloc(inodes, maxinodes * sizeof(inodes[0]),
newmax * sizeof(inodes[0]));
maxinodes = newmax;
}
inodes[ninodes].ino = ino;
inodes[ninodes].linkcount = 0;
inodes[ninodes].visited = 0;
inodes[ninodes].type = type;
ninodes++;
inodes_sorted = 0;
}
void
output(const char *buf, size_t len)
{
size_t oldmax;
if (linebufpos + len > linebufmax) {
oldmax = linebufmax;
if (linebufmax == 0) {
linebufmax = 64;
}
while (linebufpos + len > linebufmax) {
linebufmax *= 2;
}
linebuf = dorealloc(linebuf, oldmax, linebufmax);
}
memcpy(linebuf + linebufpos, buf, len);
linebufpos += len;
if (len == 1 && buf[0] == '\n') {
filter_output(linebuf, linebufpos);
linebufpos = 0;
}
}