int private_vstream_gets(ACL_VSTREAM *stream, void *vptr, size_t maxlen)
{
int n, ch;
unsigned char *ptr;
if (stream == NULL || vptr == NULL || maxlen <= 0)
return (ACL_VSTREAM_EOF);
stream->flag &= ~ACL_VSTREAM_FLAG_TAGYES;
ptr = (unsigned char *) vptr;
for (n = 1; n < (int) maxlen; n++) { /* left one byte for '\0' */
ch = private_vstream_getc(stream);
if (ch == ACL_VSTREAM_EOF) {
if (n == 1)
return (ACL_VSTREAM_EOF);/* EOF, nodata read */
break; /* EOF, some data was read */
} else {
*ptr++ = ch;
if (ch == '\n'){ /* newline is stored, like fgets() */
stream->flag |= ACL_VSTREAM_FLAG_TAGYES;
break;
}
}
}
*ptr = 0; /* null terminate like fgets() */
return (n);
}
int private_vstream_readn(ACL_VSTREAM *stream, void *vptr, size_t maxlen)
{
int n, ch;
unsigned char *ptr;
if (stream == NULL || vptr == NULL || (int) maxlen <= 0)
return (ACL_VSTREAM_EOF);
ptr = (unsigned char *) vptr;
for (n = 0; n < (int) maxlen; n++) {
ch = private_vstream_getc(stream);
if (ch == ACL_VSTREAM_EOF) {
if (n == 0)
return (ACL_VSTREAM_EOF); /* EOF, nodata read */
else
break; /* EOF, some data was read */
} else {
*ptr++ = ch;
}
}
if (n != (int) maxlen) {
snprintf(stream->errbuf, sizeof(stream->errbuf),
"nread=%d, nneed=%d, errmsg=not read the needed data",
n, (int) maxlen);
stream->flag |= ACL_VSTREAM_FLAG_RDSHORT;
return (ACL_VSTREAM_EOF);
}
return (n);
}
int private_vstream_gets_nonl(ACL_VSTREAM *stream, void *vptr, size_t maxlen)
{
int n, ch;
unsigned char *ptr;
if (stream == NULL || vptr == NULL || maxlen <= 0)
return (ACL_VSTREAM_EOF);
ptr = (unsigned char *) vptr;
for (n = 1; n < (int) maxlen; n++) {
ch = private_vstream_getc(stream);
if (ch == ACL_VSTREAM_EOF) {
stream->flag &= ~ACL_VSTREAM_FLAG_TAGYES;
stream->flag |= ACL_VSTREAM_FLAG_TAGNO;
if (n == 1)
return (ACL_VSTREAM_EOF); /* EOF, nodata read */
else
break; /* EOF, some data was read */
} else {
*ptr++ = ch;
if (ch == '\n') {
stream->flag |= ACL_VSTREAM_FLAG_TAGYES;
stream->flag &= ~ACL_VSTREAM_FLAG_TAGNO;
break; /* newline is stored, like fgets() */
}
}
}
*ptr = 0; /* null terminate like fgets() */
ptr--;
while (ptr >= (unsigned char *) vptr) {
if (*ptr == '\r' || *ptr == '\n') {
*ptr-- = 0;
n--;
continue;
}
break;
}
return (n);
}
