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222 lines (196 loc) · 4.91 KB
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#ifndef __GNUC__
#pragma code_seg( "RTV_TEXT" )
#pragma data_seg( "RTV_DATA" )
#pragma bss_seg( "RTV_BSS" )
#pragma const_seg( "RTV_RD" )
#endif
/*
* Copyright (C) 2002 John Todd Larason <jtl@molehill.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "rtv.h"
#include <string.h>
#include <stdlib.h>
struct replaytv_version replaytv_version = {4, 3, 0, 280};
u8 rtv_to_u8(unsigned char ** pp)
{
unsigned char * p;
u8 r;
p = *pp;
r = *p++;
*pp = p;
return r;
}
u16 rtv_to_u16(unsigned char ** pp)
{
u16 r;
r = rtv_to_u8(pp) << 8;
r |= rtv_to_u8(pp);
return r;
}
u32 rtv_to_u32(unsigned char ** pp)
{
u32 r;
r = rtv_to_u16(pp) << 16;
r |= rtv_to_u16(pp);
return r;
}
u64 rtv_to_u64(unsigned char ** pp)
{
u64 r;
r = (u64)(rtv_to_u32(pp)) << 32;
r |= (u64)(rtv_to_u32(pp));
return r;
}
void rtv_to_buf_len(unsigned char ** pp, unsigned char * b, size_t l)
{
unsigned char * p;
p = *pp;
memcpy(b, p, l);
p += l;
*pp = p;
}
void rtv_from_u8(unsigned char ** pp, u8 v)
{
unsigned char * p;
p = *pp;
*p++ = v;
*pp = p;
}
void rtv_from_u16(unsigned char ** pp, u16 v)
{
rtv_from_u8(pp, (u8)((v & 0xff00) >> 8));
rtv_from_u8(pp, (u8)((v & 0x00ff) ));
}
void rtv_from_u32(unsigned char ** pp, u32 v)
{
rtv_from_u16(pp, (u16)((v & 0xffff0000) >> 16));
rtv_from_u16(pp, (u16)((v & 0x0000ffff) ));
}
void rtv_from_u64(unsigned char ** pp, u64 v)
{
rtv_from_u32(pp, (u32)((v & 0xffffffff00000000LL) >> 32));
rtv_from_u32(pp, (u32)((v & 0x00000000ffffffffLL) ));
}
void rtv_from_buf_len(unsigned char ** pp, unsigned char * b, size_t l)
{
unsigned char * p;
p = *pp;
memcpy(p, b, l);
p += l;
*pp = p;
}
/* supports formats:
* 520411140
* 4.1
* 4.1(140)
* 4.1 (140)
* 4.1.1
* 4.1.1.140
* 4.1.1(140)
* 4.1.1 (140)
*/
extern int rtv_set_replaytv_version(char * version)
{
if (strncmp(version, "520", 3) == 0 &&
strlen(version) == 9) {
replaytv_version.major = version[3] - '0';
replaytv_version.minor = version[4] - '0';
replaytv_version.patch = version[5] - '0';
replaytv_version.build = atoi(version+6);
return 0;
}
replaytv_version.major = strtoul(version, &version, 10);
if (version == NULL || *version != '.')
return -1; /* need at least major&minor */
version++;
replaytv_version.minor = strtoul(version, &version, 10);
switch (*version) {
case '\0': /* '4.1' style */
replaytv_version.patch = 0;
replaytv_version.build = 0;
return 0;
case '.': /* '4.1.1'... style */
version++;
replaytv_version.patch = strtoul(version, &version, 10);
break;
case ' ': /* '4.1 (140)' */
case '(': /* '4.1(140)' */
replaytv_version.patch = 0;
break;
default:
return -1;
}
if (*version == '\0') { /* '4.1.1' */
replaytv_version.build = 0;
return 0;
}
switch (*version) {
case '.': /* '4.1.1.140' */
version++;
break;
case ' ': /* '4.1 (140)' or '4.1.1 (140)' */
version++;
if (*version != '(')
return -1;
version++;
break;
case '(': /* '4.1(140)' or '4.1.1(140)' */
version++;
break;
default:
return -1;
}
replaytv_version.build = strtoul(version, &version, 10);
if (*version == '\0')
return 0;
if (*version == ')')
return 0;
return -1;
}
int rtv_split_lines(char * src, char *** pdst)
{
int num_lines, i;
char * p;
char ** dst;
num_lines = 0;
p = src;
while (p) {
p = strchr(p, '\n');
if (p) {
p++;
num_lines++;
}
}
dst = calloc(num_lines, sizeof(char *));
dst[0] = src;
p = src;
i = 1;
while (p) {
p = strchr(p, '\n');
if (p) {
*p = '\0';
p++;
if (*p) {
dst[i] = p;
i++;
}
}
}
*pdst = dst;
return num_lines;
}
void rtv_free_lines(int num_lines, char ** lines)
{
(void)num_lines; /* not used with the above implementation */
free(lines);
}