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#include "getln.h"
#include "byte.h"
/**
@file getln.c
@author djb
@source qmail
@brief evaluting tokenized input arguments
*/
int getln(buffer *b, stralloc *sa, int *match, int sep)
{
char *cont;
unsigned int clen;
if (sgetln(b, sa, &cont, &clen, sep) == -1) return -1;
if (!clen) {
*match = 0;
return 0;
}
if (!stralloc_catb(sa, cont, clen)) return -1;
*match = 1;
return 0;
}
int sgetln(buffer *b, stralloc *sa, char **cont, unsigned int *clen, int sep)
{
register char *x;
register unsigned int i;
int n;
if (!stralloc_ready(sa, 0)) return -1;
sa->len = 0;
for (;;) {
n = buffer_feed(b);
if (n < 0) return -1;
if (n == 0) {
*clen = 0;
return 0;
}
x = buffer_PEEK(b);
i = byte_chr(x, n, sep);
if (i < n) {
buffer_SEEK(b, *clen = i + 1);
*cont = x;
return 0;
}
if (!stralloc_readyplus(sa, n)) return -1;
i = sa->len;
sa->len = i + buffer_get(b, sa->s + i, n);
}
}
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