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C++ AsmFormatPluginHelper::seek方法代码示例

本文整理汇总了C++中AsmFormatPluginHelper::seek方法的典型用法代码示例。如果您正苦于以下问题:C++ AsmFormatPluginHelper::seek方法的具体用法?C++ AsmFormatPluginHelper::seek怎么用?C++ AsmFormatPluginHelper::seek使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在AsmFormatPluginHelper的用法示例。


在下文中一共展示了AsmFormatPluginHelper::seek方法的11个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1:

static int _exit_64_phdr(AsmFormatPlugin * format, Elf64_Off offset)
{
    AsmFormatPluginHelper * helper = format->helper;
    Elf * elf = format->priv;
    ElfArch * ea = elf->arch;
    Elf64_Ehdr hdr;

    if(elf->es64_cnt == 0)
        return 0;
    if(helper->seek(helper->format, 0, SEEK_SET) != 0)
        return -1;
    if(helper->read(helper->format, &hdr, sizeof(hdr)) != sizeof(hdr))
        return -1;
    if(ea->endian == ELFDATA2MSB)
    {
        hdr.e_shoff = _htob64(offset);
        hdr.e_shnum = _htob16(elf->es64_cnt);
        hdr.e_shstrndx = _htob16(elf->es64_cnt - 1);
    }
    else
    {
        hdr.e_shoff = _htol64(offset);
        hdr.e_shnum = _htol16(elf->es64_cnt);
        hdr.e_shstrndx = _htol16(elf->es64_cnt - 1);
    }
    if(helper->seek(helper->format, 0, SEEK_SET) != 0)
        return -1;
    if(helper->write(helper->format, &hdr, sizeof(hdr)) != sizeof(hdr))
        return -1;
    return 0;
}
开发者ID:khorben,项目名称:DeforaOS,代码行数:31,代码来源:elf.c

示例2: _elf_error

static int _exit_32_phdr(AsmFormatPlugin * format, Elf32_Off offset)
{
    AsmFormatPluginHelper * helper = format->helper;
    Elf * elf = format->priv;
    ElfArch * ea = elf->arch;
    Elf32_Ehdr hdr;

#ifdef DEBUG
    fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
    if(elf->es32_cnt == 0)
        return 0;
    if(helper->seek(helper->format, 0, SEEK_SET) != 0)
        return -1;
    if(helper->read(helper->format, &hdr, sizeof(hdr)) != sizeof(hdr))
        return _elf_error(format);
    if(ea->endian == ELFDATA2MSB)
    {
        hdr.e_shoff = _htob32(offset);
        hdr.e_shnum = _htob16(elf->es32_cnt + 1);
        hdr.e_shstrndx = _htob16(elf->es32_cnt);
    }
    else
    {
        hdr.e_shoff = _htol32(offset);
        hdr.e_shnum = _htol16(elf->es32_cnt + 1);
        hdr.e_shstrndx = _htol16(elf->es32_cnt);
    }
    if(helper->seek(helper->format, 0, SEEK_SET) != 0)
        return -1;
    if(helper->write(helper->format, &hdr, sizeof(hdr)) != sizeof(hdr))
        return -1;
    return 0;
}
开发者ID:khorben,项目名称:DeforaOS,代码行数:34,代码来源:elf.c

示例3: _decode_map

static int _decode_map(AsmFormatPlugin * format, DexHeader * dh, int raw)
{
    int ret = 0;
    AsmFormatPluginHelper * helper = format->helper;
    uint32_t size;
    uint32_t i;
    off_t offset;
    DexMapItem dmi;

#ifdef DEBUG
    fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
    if(helper->seek(helper->format, dh->map_off, SEEK_SET) != dh->map_off)
        return -1;
    if(helper->read(helper->format, &size, sizeof(size)) != sizeof(size))
        return -1;
    size = _htol32(size);
#ifdef DEBUG
    fprintf(stderr, "DEBUG: %s() %u items\n", __func__, size);
#endif
    for(i = 0; i < size; i++)
    {
        if(helper->read(helper->format, &dmi, sizeof(dmi))
                != sizeof(dmi))
            return -1;
        offset = helper->seek(helper->format, 0, SEEK_CUR);
        dmi.type = _htol16(dmi.type);
        dmi.size = _htol32(dmi.size);
        dmi.offset = _htol32(dmi.offset);
#ifdef DEBUG
        fprintf(stderr, "DEBUG: item %u, type 0x%x, size 0x%[email protected]%x\n",
                i, dmi.type, dmi.size, dmi.offset);
#endif
        switch(dmi.type)
        {
            case TYPE_CODE_ITEM:
                ret |= _decode_map_code(format, i, dmi.offset,
                        dmi.size);
                break;
            case TYPE_METHOD_ID_ITEM:
                ret |= _decode_map_method_id(format, dmi.offset,
                        dmi.size);
                break;
            case TYPE_STRING_ID_ITEM:
                ret |= _decode_map_string_id(format, dmi.offset,
                        dmi.size);
                break;
        }
        if(helper->seek(helper->format, offset, SEEK_SET) != offset)
            return -1;
        if(ret != 0)
            break;
    }
    return ret;
}
开发者ID:,项目名称:,代码行数:55,代码来源:

示例4:

/* elf_detect */
static char const * _elf_detect(AsmFormatPlugin * format)
{
    AsmFormatPluginHelper * helper = format->helper;
    char const * ret;
    union
    {
        Elf32_Ehdr ehdr32;
        Elf64_Ehdr ehdr64;
    } ehdr;

    if(helper->seek(helper->format, 0, SEEK_SET) != 0)
        return NULL;
    if(helper->read(helper->format, &ehdr, sizeof(ehdr)) != sizeof(ehdr))
        return NULL;
    switch(ehdr.ehdr32.e_ident[EI_CLASS])
    {
        case ELFCLASS32:
            if((ret = elf32_detect(format, &ehdr.ehdr32)) != NULL)
                format->decode = elf32_decode;
            break;
        case ELFCLASS64:
            if((ret = elf64_detect(format, &ehdr.ehdr64)) != NULL)
                format->decode = elf64_decode;
            break;
        default:
            ret = NULL;
            error_set_code(1, "%s: %s 0x%x\n",
                    helper->get_filename(helper->format),
                    "Unsupported ELF class",
                    ehdr.ehdr32.e_ident[EI_CLASS]);
            break;
    }
    return ret;
}
开发者ID:DeforaOS,项目名称:asm,代码行数:35,代码来源:elf.c

示例5: if

static int _exit_32(AsmFormatPlugin * format)
{
    int ret = 0;
    AsmFormatPluginHelper * helper = format->helper;
    long offset;

#ifdef DEBUG
    fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
    if(_section_32(format, ".shstrtab") != 0)
        ret = -1;
    else if(helper->write(helper->format, shstrtab.buf, shstrtab.cnt)
            != (ssize_t)shstrtab.cnt)
        ret = -1;
    else if((offset = helper->seek(helper->format, 0, SEEK_CUR)) < 0)
        ret = -1;
    else if(_exit_32_phdr(format, offset) != 0
            || _exit_32_shdr(format, offset) != 0)
        ret = -1;
    free(shstrtab.buf);
    shstrtab.buf = NULL;
    shstrtab.cnt = 0;
    ret |= _elf_exit(format);
    return ret;
}
开发者ID:khorben,项目名称:DeforaOS,代码行数:25,代码来源:elf.c

示例6: sizeof

static int _decode64_strtab(AsmFormatPlugin * format, Elf64_Shdr * shdr,
        size_t shdr_cnt, uint16_t ndx, char ** strtab,
        size_t * strtab_cnt)
{
    AsmFormatPluginHelper * helper = format->helper;
    ssize_t size;

    if(ndx >= shdr_cnt)
        return -error_set_code(1, "%s: %s",
                helper->get_filename(helper->format),
                "Unable to read the string table");
    shdr = &shdr[ndx];
    if(helper->seek(helper->format, shdr->sh_offset, SEEK_SET) < 0)
        return -1;
    size = sizeof(**strtab) * shdr->sh_size;
    if((*strtab = malloc(size)) == NULL)
        return -_elf_error(format);
    if(helper->read(helper->format, *strtab, size) != size)
    {
        free(*strtab);
        return -1;
    }
    *strtab_cnt = shdr->sh_size;
    return 0;
}
开发者ID:khorben,项目名称:DeforaOS,代码行数:25,代码来源:elf.c

示例7: _flat_decode

/* flat_decode */
static int _flat_decode(AsmFormatPlugin * format, int raw)
{
    AsmFormatPluginHelper * helper = format->helper;
    off_t offset;

    if((offset = helper->seek(helper->format, 0, SEEK_END)) >= 0
            && helper->set_section(helper->format, 0, 0, ".text", 0,
                offset, 0) != NULL)
        return 0;
    return -1;
}
开发者ID:,项目名称:,代码行数:12,代码来源:

示例8: _decode_map_string_id

static int _decode_map_string_id(AsmFormatPlugin * format, off_t offset,
        size_t size)
{
    AsmFormatPluginHelper * helper = format->helper;
    DexStringIdItem * dsii;
    ssize_t s;
    size_t i;
    uint8_t u8;

#ifdef DEBUG
    fprintf(stderr, "DEBUG: %s(%ld, %lu)\n", __func__, offset, size);
#endif
    if(helper->seek(helper->format, offset, SEEK_SET) != offset)
        return -1;
    s = sizeof(*dsii) * size;
    if((dsii = malloc(s)) == NULL)
        return -error_set_code(1, "%s", strerror(errno));
    if(helper->read(helper->format, dsii, s) != s)
        return -1;
    for(i = 0; i < size; i++)
    {
        dsii[i].string_data_off = _htol32(dsii[i].string_data_off);
        offset = dsii[i].string_data_off;
        if(helper->seek(helper->format, offset, SEEK_SET) != offset)
            break;
        if(helper->read(helper->format, &u8, sizeof(u8)) != sizeof(u8))
            break;
#ifdef DEBUG
        fprintf(stderr, "DEBUG: %s() string %lu offset 0x%lx len %u\n",
                __func__, i, offset, u8);
#endif
        helper->set_string(helper->format, i, NULL, offset + 1, u8);
    }
    free(dsii);
    return (i == size) ? 0 : -1;
}
开发者ID:,项目名称:,代码行数:36,代码来源:

示例9: _dex_decode

static int _dex_decode(AsmFormatPlugin * format, int raw)
{
    AsmFormatPluginHelper * helper = format->helper;
    DexHeader dh;

#ifdef DEBUG
    fprintf(stderr, "DEBUG: %s(%d)\n", __func__, raw);
#endif
    if(helper->seek(helper->format, 0, SEEK_SET) != 0)
        return -1;
    if(helper->read(helper->format, &dh, sizeof(dh)) != sizeof(dh))
        return -1;
    dh.map_off = _htol32(dh.map_off);
    if(_decode_map(format, &dh, raw) != 0)
        return -1;
    return 0;
}
开发者ID:,项目名称:,代码行数:17,代码来源:

示例10: _decode_map_method_id

static int _decode_map_method_id(AsmFormatPlugin * format, off_t offset,
        size_t size)
{
    AsmFormatPluginHelper * helper = format->helper;
    Dex * dex = format;
    ssize_t s;
    size_t i;
    AsmString * string;
    char const * name;

#ifdef DEBUG
    fprintf(stderr, "DEBUG: %s(%ld, %lu)\n", __func__, offset, size);
#endif
    if(dex->dmii != NULL)
        return 0; /* already parsed */
    if(helper->seek(helper->format, offset, SEEK_SET) != offset)
        return -1;
    s = sizeof(*dex->dmii) * size;
    if((dex->dmii = malloc(s)) == NULL)
        return -error_set_code(1, "%s", strerror(errno));
    if(helper->read(helper->format, dex->dmii, s) != s)
        return -1;
    for(i = 0; i < size; i++)
    {
        dex->dmii[i].class_idx = _htol16(dex->dmii[i].class_idx);
        dex->dmii[i].proto_idx = _htol16(dex->dmii[i].proto_idx);
        dex->dmii[i].name_idx = _htol32(dex->dmii[i].name_idx);
        if((string = helper->get_string_by_id(helper->format,
                        dex->dmii[i].name_idx)) != NULL)
            name = string->name;
        else
            /* XXX report error? */
            name = NULL;
        helper->set_function(helper->format, i, name, -1, -1);
    }
    dex->dmii_cnt = size;
    return 0;
}
开发者ID:,项目名称:,代码行数:38,代码来源:

示例11: _dex_decode_section

/* dex_decode_section */
static int _dex_decode_section(AsmFormatPlugin * format, AsmSection * section,
        AsmArchInstructionCall ** calls, size_t * calls_cnt)
{
    AsmFormatPluginHelper * helper = format->helper;
    DexMapCodeItem dmci;
    size_t i;
    off_t seek;
    AsmFunction * f;
    size_t j;
    DexMapTryItem dmti;
    ssize_t s;
    uint32_t u32;
    int32_t s32;
    uint32_t v32;

#ifdef DEBUG
    fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
    if(helper->seek(helper->format, section->offset, SEEK_SET)
            != section->offset)
        return -1;
    for(i = 0; i < section->size; i++)
    {
        s = sizeof(dmci);
        if(helper->read(helper->format, &dmci, s) != s)
            return -1;
        dmci.registers_size = _htol16(dmci.registers_size);
        dmci.ins_size = _htol16(dmci.ins_size);
        dmci.outs_size = _htol16(dmci.outs_size);
        dmci.tries_size = _htol16(dmci.tries_size);
        dmci.debug_info_off = _htol32(dmci.debug_info_off);
        dmci.insns_size = _htol32(dmci.insns_size);
        seek = helper->seek(helper->format, 0, SEEK_CUR);
        if(helper->decode(helper->format, seek, dmci.insns_size * 2,
                    seek, calls, calls_cnt) != 0)
            return -1;
        /* update the corresponding function offset */
        if((f = helper->get_function_by_id(helper->format, i)) != NULL)
            /* XXX not very optimal */
            helper->set_function(helper->format, i, f->name, seek,
                    dmci.insns_size * 2);
        /* skip padding and try_items */
        seek = (dmci.insns_size & 0x1) == 0x1 ? 2 : 0;
#ifdef DEBUG
        fprintf(stderr, "DEBUG: code item %lu/%lu, offset 0x%lx"
                ", registers 0x%x, size 0x%x, debug @0x%x"
                ", tries 0x%x, seek 0x%lx\n", i, section->size,
                helper->seek(helper->format, 0, SEEK_CUR),
                dmci.registers_size, dmci.insns_size,
                dmci.debug_info_off, dmci.tries_size, seek);
#endif
        if(seek != 0 && helper->seek(helper->format, seek, SEEK_CUR)
                < 0)
            return -1;
        if(dmci.tries_size > 0)
        {
            for(j = 0; j < dmci.tries_size; j++)
            {
                s = sizeof(dmti);
                if(helper->read(helper->format, &dmti, s) != s)
                    return -1;
                dmti.start_addr = _htol32(dmti.start_addr);
                dmti.insn_count = _htol16(dmti.insn_count);
                dmti.handler_off = _htol16(dmti.handler_off);
#ifdef DEBUG
                fprintf(stderr, "DEBUG: start 0x%x,"
                        " insn_count 0x%x,"
                        " handler_off 0x%x\n",
                        dmti.start_addr,
                        dmti.insn_count,
                        dmti.handler_off);
#endif
            }
            /* encoded catch handler */
            /* list size */
            if(_dex_decode_uleb128(format, &u32) != 0)
                return -1;
            for(; u32 > 0; u32--)
            {
                /* handler size */
                if(_dex_decode_sleb128(format, &s32) != 0)
                    return -1;
                /* address pairs */
                for(j = abs(s32); j > 0; j--)
                {
                    if(_dex_decode_uleb128(format, &v32)
                            != 0)
                        return -1;
                    if(_dex_decode_uleb128(format, &v32)
                            != 0)
                        return -1;
                }
                /* catch-all address */
                if(s32 <= 0 && _dex_decode_uleb128(format, &v32)
                        != 0)
                    return -1;
            }
            /* ensure alignment on 4 bytes */
            seek = helper->seek(helper->format, 0, SEEK_CUR);
//.........这里部分代码省略.........
开发者ID:,项目名称:,代码行数:101,代码来源:


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