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/* ISC license. */
#include <stddef.h>
#include <errno.h>
#include <skalibs/types.h>
#include <skalibs/allreadwrite.h>
#include <skalibs/buffer.h>
#include <skalibs/fmtscan.h>
#include <skalibs/stralloc.h>
#include <skalibs/djbunix.h>
#include <skalibs/skamisc.h>
#include "qmailr.h"
#include <skalibs/posixishard.h>
int qmailr_control_read (char const *file, stralloc *sa, size_t *pos)
{
int fd = openc_readb(file) ;
if (fd == -1) return errno == ENOENT ? (errno = 0, 0) : -1 ;
char buf[4096] ;
size_t r = allread(fd, buf, 4096) ;
fd_close(fd) ;
if (r == 4096) return (errno = ENAMETOOLONG, -1) ;
if (!r) return 0 ;
if (buf[r-1] == '\n') r-- ;
if (!r) return 0 ;
if (!stralloc_readyplus(sa, r+1)) return -1 ;
*pos = sa->len ;
stralloc_catb(sa, buf, r) ; stralloc_0(sa) ;
return 1 ;
}
int qmailr_control_readint (char const *file, unsigned int *x, stralloc *sa)
{
size_t pos ;
int r = qmailr_control_read(file, sa, &pos) ;
if (r <= 0) return r ;
sa->len = pos ;
if (!uint0_scan(sa->s + sa->len, x)) return (errno = EPROTO, 0) ;
return 1 ;
}
int qmailr_control_readiplist (char const *file, stralloc *ip4, stralloc *ip6)
{
int fd = openc_readb(file) ;
if (fd == -1) return errno == ENOENT ? (errno = 0, 0) : -1 ;
size_t pos4 = ip4->len, pos6 = ip6->len ;
char buf[4096] ;
buffer b = BUFFER_INIT(&buffer_read, fd, buf, 4096) ;
for (;;)
{
char line[128] ;
char ip[16] ;
size_t len = 0 ;
int r = getlnmax(&b, line, 127, &len, '\n') ;
if (r == -1) goto err ;
if (!r) break ;
if (!len) continue ;
if (line[len-1] != '\n') line[len++] = '\n' ;
if (ip6_scan(line, ip) == len-1)
{
if (!stralloc_catb(ip6, ip, 16)) goto err ;
}
else if (ip4_scan(line, ip) == len-1)
{
if (!stralloc_catb(ip4, ip, 4)) goto err ;
}
else goto errinval ;
}
return 1 ;
errinval:
errno = EINVAL ;
err:
ip4->len = pos4 ; ip6->len = pos6 ;
return 0 ;
}
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