252 lines
7.0 KiB
C
252 lines
7.0 KiB
C
/***************************************************************************
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* Copyright (C) 2006 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef REPLACEMENTS_H
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#define REPLACEMENTS_H
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "types.h"
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#if BUILD_ECOSBOARD
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#include <pkgconf/system.h>
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#include <stdlib.h>
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#include <sys/select.h>
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#endif
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/* include necessary headers for socket functionality */
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#ifdef _WIN32
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#include <winsock2.h>
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#else
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#include <sys/socket.h>
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#include <sys/poll.h>
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#include <netinet/in.h>
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#include <unistd.h>
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#include <fcntl.h>
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#endif
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h> /* for MIN/MAX macros */
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#endif
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/* MIN,MAX macros */
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#ifndef MIN
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#define MIN(a,b) (((a)<(b))?(a):(b))
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#endif
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#ifndef MAX
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#define MAX(a,b) (((a)>(b))?(a):(b))
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#endif
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/* for systems that do not support ENOTSUP
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* win32 being one of them */
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#ifndef ENOTSUP
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#define ENOTSUP 134 /* Not supported */
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#endif
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/* gettimeofday() */
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#ifndef HAVE_GETTIMEOFDAY
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#ifndef _TIMEVAL_DEFINED
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#define _TIMEVAL_DEFINED
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struct timeval {
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long tv_sec;
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long tv_usec;
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};
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#endif /* _TIMEVAL_DEFINED */
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struct timezone {
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int tz_minuteswest;
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int tz_dsttime;
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};
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extern int gettimeofday(struct timeval *tv, struct timezone *tz);
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#endif
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/**** clear_malloc & fill_malloc ****/
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void *clear_malloc(size_t size);
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void *fill_malloc(size_t size);
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/*
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* Now you have 3 ways for the malloc function:
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*
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* 1. Do not change anything, use the original malloc
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*
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* 2. Use the clear_malloc function instead of the original malloc.
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* In this case you must use the following define:
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* #define malloc((_a)) clear_malloc((_a))
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*
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* 3. Use the fill_malloc function instead of the original malloc.
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* In this case you must use the following define:
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* #define malloc((_a)) fill_malloc((_a))
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*
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* We have figured out that there could exist some malloc problems
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* where variables are using without to be initialise. To find this
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* places, use the fill_malloc function. With this function we want
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* to initialize memory to some known bad state. This is quite easily
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* spotted in the debugger and will trap to an invalid address.
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*
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* clear_malloc can be used if you want to set not initialise
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* variable to 0.
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*
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* If you do not want to change the malloc function, to not use one of
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* the following macros. Which is the default way.
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*/
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/* #define malloc(_a) clear_malloc(_a) */
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/* #define malloc(_a) fill_malloc(_a) */
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/* GNU extensions to the C library that may be missing on some systems */
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#ifndef HAVE_STRNDUP
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extern char* strndup(const char *s, size_t n);
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#endif /* HAVE_STRNDUP */
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#ifndef HAVE_STRNLEN
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extern size_t strnlen(const char *s, size_t maxlen);
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#endif /* HAVE_STRNLEN */
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#ifndef HAVE_USLEEP
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#ifdef _WIN32
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static __inline unsigned usleep(unsigned int usecs)
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{
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Sleep((usecs/1000));
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return 0;
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}
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#else
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#if BUILD_ECOSBOARD
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void usleep(int us);
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#else
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#error no usleep defined for your platform
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#endif
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#endif
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#endif /* HAVE_USLEEP */
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/* Windows specific */
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <time.h>
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#if IS_MINGW == 1
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static __inline unsigned char inb(unsigned short int port)
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{
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unsigned char _v;
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__asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
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return _v;
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}
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static __inline void outb(unsigned char value, unsigned short int port)
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{
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__asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
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}
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#endif /* IS_MINGW */
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#endif /* _WIN32 */
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/* generic socket functions for Windows and Posix */
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static __inline int write_socket( int handle, const void *buffer, unsigned int count )
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{
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#ifdef _WIN32
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return send(handle, buffer, count, 0);
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#else
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return write(handle, buffer, count);
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#endif
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}
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static __inline int read_socket( int handle, void *buffer, unsigned int count )
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{
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#ifdef _WIN32
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return recv(handle, buffer, count, 0);
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#else
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return read(handle, buffer, count);
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#endif
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}
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static __inline int close_socket(int sock)
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{
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#ifdef _WIN32
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return closesocket(sock);
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#else
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return close(sock);
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#endif
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}
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static __inline void socket_nonblock(int fd)
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{
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#ifdef _WIN32
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unsigned long nonblock = 1;
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ioctlsocket(fd, FIONBIO, &nonblock );
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#else
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int oldopts = fcntl(fd, F_GETFL, 0);
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fcntl(fd, F_SETFL, oldopts | O_NONBLOCK);
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#endif
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}
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#ifndef HAVE_ELF_H
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typedef struct
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{
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unsigned char e_ident[16]; /* Magic number and other info */
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u16 e_type; /* Object file type */
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u16 e_machine; /* Architecture */
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u32 e_version; /* Object file version */
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u32 e_entry; /* Entry point virtual address */
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u32 e_phoff; /* Program header table file offset */
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u32 e_shoff; /* Section header table file offset */
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u32 e_flags; /* Processor-specific flags */
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u16 e_ehsize; /* ELF header size in bytes */
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u16 e_phentsize; /* Program header table entry size */
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u16 e_phnum; /* Program header table entry count */
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u16 e_shentsize; /* Section header table entry size */
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u16 e_shnum; /* Section header table entry count */
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u16 e_shstrndx; /* Section header string table index */
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} Elf32_Ehdr;
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#define ELFMAG "\177ELF"
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#define SELFMAG 4
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#define EI_CLASS 4 /* File class byte index */
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#define ELFCLASS32 1 /* 32-bit objects */
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#define ELFCLASS64 2 /* 64-bit objects */
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#define EI_DATA 5 /* Data encoding byte index */
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#define ELFDATA2LSB 1 /* 2's complement, little endian */
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#define ELFDATA2MSB 2 /* 2's complement, big endian */
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typedef struct
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{
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u32 p_type; /* Segment type */
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u32 p_offset; /* Segment file offset */
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u32 p_vaddr; /* Segment virtual address */
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u32 p_paddr; /* Segment physical address */
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u32 p_filesz; /* Segment size in file */
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u32 p_memsz; /* Segment size in memory */
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u32 p_flags; /* Segment flags */
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u32 p_align; /* Segment alignment */
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} Elf32_Phdr;
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#define PT_LOAD 1 /* Loadable program segment */
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#endif /* HAVE_ELF_H */
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#endif /* REPLACEMENTS_H */
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