Rizin
unix-like reverse engineering framework and cli tools
Functions | Variables
system.h File Reference
#include <mspack.h>
#include <macros.h>
#include <string.h>

Go to the source code of this file.

Functions

int mspack_sys_filelen (struct mspack_system *system, struct mspack_file *file, off_t *length)
 
int mspack_valid_system (struct mspack_system *sys)
 

Variables

struct mspack_system * mspack_default_system
 

Function Documentation

◆ mspack_sys_filelen()

int mspack_sys_filelen ( struct mspack_system *  system,
struct mspack_file *  file,
off_t *  length 
)

Definition at line 66 of file system.c.

68 {
69  off_t current;
70 
71  if (!system || !file || !length) return MSPACK_ERR_OPEN;
72 
73  /* get current offset */
74  current = system->tell(file);
75 
76  /* seek to end of file */
77  if (system->seek(file, (off_t) 0, MSPACK_SYS_SEEK_END)) {
78  return MSPACK_ERR_SEEK;
79  }
80 
81  /* get offset of end of file */
82  *length = system->tell(file);
83 
84  /* seek back to original offset */
85  if (system->seek(file, current, MSPACK_SYS_SEEK_START)) {
86  return MSPACK_ERR_SEEK;
87  }
88 
89  return MSPACK_ERR_OK;
90 }
MSPACK_ERR_SEEK
#define MSPACK_ERR_SEEK
Definition: mspack.h:495
MSPACK_SYS_SEEK_END
#define MSPACK_SYS_SEEK_END
Definition: mspack.h:471
MSPACK_ERR_OK
#define MSPACK_ERR_OK
Definition: mspack.h:485
MSPACK_ERR_OPEN
#define MSPACK_ERR_OPEN
Definition: mspack.h:489
MSPACK_SYS_SEEK_START
#define MSPACK_SYS_SEEK_START
Definition: mspack.h:467
length
static static sync static getppid static getegid const char static filename char static len const char char static bufsiz static mask static vfork const void static prot static getpgrp const char static swapflags static arg static fd static protocol static who struct sockaddr static addrlen static backlog struct timeval struct timezone static tz const struct iovec static count static mode const void const struct sockaddr static tolen const char static pathname void static offset struct stat static buf void long static basep static whence static length const void static len static semflg const void static shmflg const struct timespec struct timespec static rem const char static group const void length
Definition: sflib.h:133
off_t
int off_t
Definition: sftypes.h:41
file
Definition: gzappend.c:170
mspack_system::seek
int(* seek)(struct mspack_file *file, off_t offset, int mode)
Definition: mspack.h:380
mspack_system::tell
off_t(* tell)(struct mspack_file *file)
Definition: mspack.h:391

References length, MSPACK_ERR_OK, MSPACK_ERR_OPEN, MSPACK_ERR_SEEK, MSPACK_SYS_SEEK_END, MSPACK_SYS_SEEK_START, mspack_system::seek, and mspack_system::tell.

Referenced by cabd_search().

◆ mspack_valid_system()

int mspack_valid_system ( struct mspack_system *  sys)

Definition at line 58 of file system.c.

58  {
59  return (sys != NULL) && (sys->open != NULL) && (sys->close != NULL) &&
60  (sys->read != NULL) && (sys->write != NULL) && (sys->seek != NULL) &&
61  (sys->tell != NULL) && (sys->message != NULL) && (sys->alloc != NULL) &&
62  (sys->free != NULL) && (sys->copy != NULL) && (sys->null_ptr == NULL);
63 }
NULL
#define NULL
Definition: cris-opc.c:27
mspack_system::copy
void(* copy)(void *src, void *dest, size_t bytes)
Definition: mspack.h:444
mspack_system::close
void(* close)(struct mspack_file *file)
Definition: mspack.h:321
mspack_system::open
struct mspack_file *(* open)(struct mspack_system *self, const char *filename, int mode)
Definition: mspack.h:310
mspack_system::message
void(* message)(struct mspack_file *file, const char *format,...)
Definition: mspack.h:407
mspack_system::free
void(* free)(void *ptr)
Definition: mspack.h:430
mspack_system::read
int(* read)(struct mspack_file *file, void *buffer, int bytes)
Definition: mspack.h:336
mspack_system::write
int(* write)(struct mspack_file *file, void *buffer, int bytes)
Definition: mspack.h:353
mspack_system::null_ptr
void * null_ptr
Definition: mspack.h:454
mspack_system::alloc
void *(* alloc)(struct mspack_system *self, size_t bytes)
Definition: mspack.h:421

References mspack_system::alloc, mspack_system::close, mspack_system::copy, mspack_system::free, mspack_system::message, NULL, mspack_system::null_ptr, mspack_system::open, mspack_system::read, mspack_system::seek, mspack_system::tell, and mspack_system::write.

Referenced by mspack_create_cab_decompressor(), mspack_create_chm_decompressor(), mspack_create_kwaj_decompressor(), mspack_create_oab_decompressor(), and mspack_create_szdd_decompressor().

Variable Documentation

◆ mspack_default_system

struct mspack_system* mspack_default_system
extern

Definition at line 238 of file system.c.

Referenced by mspack_create_cab_decompressor(), mspack_create_chm_decompressor(), mspack_create_kwaj_decompressor(), mspack_create_oab_decompressor(), and mspack_create_szdd_decompressor().