diff options
Diffstat (limited to 'fs/binfmt_flat.c')
-rw-r--r-- | fs/binfmt_flat.c | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index 178cb70acc26..d50bbe59da1e 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -88,7 +88,7 @@ struct lib_info { static int load_flat_shared_library(int id, struct lib_info *p); #endif -static int load_flat_binary(struct linux_binprm *, struct pt_regs * regs); +static int load_flat_binary(struct linux_binprm *); static int flat_core_dump(struct coredump_params *cprm); static struct linux_binfmt flat_format = { @@ -107,7 +107,7 @@ static struct linux_binfmt flat_format = { static int flat_core_dump(struct coredump_params *cprm) { printk("Process %s:%d received signr %d and should have core dumped\n", - current->comm, current->pid, (int) cprm->signr); + current->comm, current->pid, (int) cprm->siginfo->si_signo); return(1); } @@ -207,11 +207,12 @@ static int decompress_exec( /* Read in first chunk of data and parse gzip header. */ fpos = offset; - ret = bprm->file->f_op->read(bprm->file, buf, LBUFSIZE, &fpos); + ret = kernel_read(bprm->file, offset, buf, LBUFSIZE); strm.next_in = buf; strm.avail_in = ret; strm.total_in = 0; + fpos += ret; retval = -ENOEXEC; @@ -277,7 +278,7 @@ static int decompress_exec( } while ((ret = zlib_inflate(&strm, Z_NO_FLUSH)) == Z_OK) { - ret = bprm->file->f_op->read(bprm->file, buf, LBUFSIZE, &fpos); + ret = kernel_read(bprm->file, fpos, buf, LBUFSIZE); if (ret <= 0) break; len -= ret; @@ -285,6 +286,7 @@ static int decompress_exec( strm.next_in = buf; strm.avail_in = ret; strm.total_in = 0; + fpos += ret; } if (ret < 0) { @@ -428,6 +430,7 @@ static int load_flat_file(struct linux_binprm * bprm, unsigned long textpos = 0, datapos = 0, result; unsigned long realdatastart = 0; unsigned long text_len, data_len, bss_len, stack_len, flags; + unsigned long full_data; unsigned long len, memp = 0; unsigned long memp_size, extra, rlim; unsigned long *reloc = 0, *rp; @@ -438,7 +441,7 @@ static int load_flat_file(struct linux_binprm * bprm, int ret; hdr = ((struct flat_hdr *) bprm->buf); /* exec-header */ - inode = bprm->file->f_path.dentry->d_inode; + inode = file_inode(bprm->file); text_len = ntohl(hdr->data_start); data_len = ntohl(hdr->data_end) - ntohl(hdr->data_start); @@ -451,6 +454,7 @@ static int load_flat_file(struct linux_binprm * bprm, relocs = ntohl(hdr->reloc_count); flags = ntohl(hdr->flags); rev = ntohl(hdr->rev); + full_data = data_len + relocs * sizeof(unsigned long); if (strncmp(hdr->magic, "bFLT", 4)) { /* @@ -577,12 +581,12 @@ static int load_flat_file(struct linux_binprm * bprm, #ifdef CONFIG_BINFMT_ZFLAT if (flags & FLAT_FLAG_GZDATA) { result = decompress_exec(bprm, fpos, (char *) datapos, - data_len + (relocs * sizeof(unsigned long)), 0); + full_data, 0); } else #endif { - result = bprm->file->f_op->read(bprm->file, (char *) datapos, - data_len + (relocs * sizeof(unsigned long)), &fpos); + result = read_code(bprm->file, datapos, fpos, + full_data); } if (IS_ERR_VALUE(result)) { printk("Unable to read data+bss, errno %d\n", (int)-result); @@ -627,30 +631,25 @@ static int load_flat_file(struct linux_binprm * bprm, if (flags & FLAT_FLAG_GZIP) { result = decompress_exec(bprm, sizeof (struct flat_hdr), (((char *) textpos) + sizeof (struct flat_hdr)), - (text_len + data_len + (relocs * sizeof(unsigned long)) + (text_len + full_data - sizeof (struct flat_hdr)), 0); memmove((void *) datapos, (void *) realdatastart, - data_len + (relocs * sizeof(unsigned long))); + full_data); } else if (flags & FLAT_FLAG_GZDATA) { - fpos = 0; - result = bprm->file->f_op->read(bprm->file, - (char *) textpos, text_len, &fpos); + result = read_code(bprm->file, textpos, 0, text_len); if (!IS_ERR_VALUE(result)) result = decompress_exec(bprm, text_len, (char *) datapos, - data_len + (relocs * sizeof(unsigned long)), 0); + full_data, 0); } else #endif { - fpos = 0; - result = bprm->file->f_op->read(bprm->file, - (char *) textpos, text_len, &fpos); - if (!IS_ERR_VALUE(result)) { - fpos = ntohl(hdr->data_start); - result = bprm->file->f_op->read(bprm->file, (char *) datapos, - data_len + (relocs * sizeof(unsigned long)), &fpos); - } + result = read_code(bprm->file, textpos, 0, text_len); + if (!IS_ERR_VALUE(result)) + result = read_code(bprm->file, datapos, + ntohl(hdr->data_start), + full_data); } if (IS_ERR_VALUE(result)) { printk("Unable to read code+data+bss, errno %d\n",(int)-result); @@ -858,9 +857,10 @@ out: * libraries. There is no binary dependent code anywhere else. */ -static int load_flat_binary(struct linux_binprm * bprm, struct pt_regs * regs) +static int load_flat_binary(struct linux_binprm * bprm) { struct lib_info libinfo; + struct pt_regs *regs = current_pt_regs(); unsigned long p = bprm->p; unsigned long stack_len; unsigned long start_addr; |