+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) 2000-2001 Silicon Graphics, Inc.
- * All Rights Reserved.
- */
-/*
- * This routine simulates
- *
- * cp file1 file2
- *
- *
- * It is a demo program which does the copy by memory mapping each of the
- * files and then doing a byte at a time memory copy.
- *
- */
-#ifdef linux
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-#endif
-
-#include <unistd.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/fcntl.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <errno.h>
-#include <getopt.h>
-#include <stdlib.h>
-
-
-char * Progname;
-off_t len; /* length of file 1 */
-off_t offset = 0;
-int print_flags_set = 1;
-
-typedef struct fflag {
- int arg; /* != 0 if ars specified */
- int value; /* flags value */
-} fflag_t;
-
-
-typedef enum ftype { /* flag bit types */
- FL_MAP, FL_PROT, FL_OPEN, FL_MAX
-} ftype_t;
-
-typedef struct mfile {
- fflag_t flags[FL_MAX];
- char *path;
- int fd;
- struct stat st;
-#ifdef linux
- void *p;
-#else
- addr_t p;
-#endif
-} mfile_t;
-
-
-#define FLAG(symbol,type) { # symbol , symbol, type }
-#define MAP_NONE 0
-
-static struct {
- char *name;
- int value;
- ftype_t type;
-} Flags[] = {
- FLAG(O_RDONLY, FL_OPEN),
- FLAG(O_WRONLY, FL_OPEN),
- FLAG(O_RDWR, FL_OPEN),
- FLAG(O_NDELAY, FL_OPEN),
- FLAG(O_NONBLOCK, FL_OPEN),
- FLAG(O_APPEND, FL_OPEN),
- FLAG(O_SYNC, FL_OPEN),
- FLAG(O_TRUNC, FL_OPEN),
- FLAG(O_CREAT, FL_OPEN),
- FLAG(O_DIRECT, FL_OPEN),
- FLAG(PROT_NONE, FL_PROT),
- FLAG(PROT_READ, FL_PROT),
- FLAG(PROT_WRITE, FL_PROT),
- FLAG(PROT_EXEC, FL_PROT),
- FLAG(MAP_SHARED, FL_MAP),
- FLAG(MAP_PRIVATE, FL_MAP),
- FLAG(MAP_FIXED, FL_MAP),
- FLAG(MAP_NONE, FL_MAP),
-};
-
-int num_Flags = sizeof(Flags)/sizeof(Flags[0]);
-
-
-mfile_t *ifile, *ofile;
-mfile_t *hfile; /* Hack job */
-static int hack = 0;
-
-static mfile_t *new_mfile(void);
-static int mfile_opt(char * s, mfile_t * f);
-static void print_flags(char *s, mfile_t *f);
-static void Usage(void);
-
-int
-main(int argc, char * argv[])
-{
- int opt;
-
- Progname = strrchr(argv[0], '/');
- if (Progname == NULL)
- Progname = argv[0];
- else
- Progname++;
-
- ifile = new_mfile();
- ofile = new_mfile();
- hfile = new_mfile();
- if (ifile == NULL || ofile == NULL || hfile == NULL) {
- fprintf(stderr,"%s: malloc failure.\n", Progname);
- exit (1);
- }
-
- /* Set default flags */
- ifile->flags[FL_MAP].value = MAP_PRIVATE;
- ifile->flags[FL_PROT].value = PROT_READ;
- ifile->flags[FL_OPEN].value = O_RDONLY;
- ofile->flags[FL_MAP].value = MAP_SHARED;
- ofile->flags[FL_PROT].value = PROT_WRITE;
- ofile->flags[FL_OPEN].value = O_RDWR|O_CREAT;
-
- while ((opt = getopt(argc, argv, "i:o:h:d")) != EOF) {
- switch(opt) {
- case 'i':
- if (mfile_opt(optarg, ifile) != 0) {
- fprintf(stderr, "%s: Invalid -i option %s\n",
- Progname, optarg);
- Usage();
- }
- break;
-
- case 'o':
- if (mfile_opt(optarg, ofile) != 0) {
- fprintf(stderr, "%s: Invalid -o option %s\n",
- Progname, optarg);
- Usage();
- }
- break;
-
- case 'h':
- if (mfile_opt(optarg, hfile) != 0) {
- fprintf(stderr, "%s: Invalid -h option %s\n",
- Progname, optarg);
- Usage();
- }
- hack = 1;
- break;
-
- case 'd':
- print_flags_set ^= 1;
- break;
- case '?':
- Usage();
- }
- }
-
- if (optind+1 > argc)
- Usage();
-
- ifile->path = argv[optind++];
- ofile->path = argv[optind++];
-
- if (optind != argc) /* Extra args on command line */
- Usage();
-
- if (stat(ifile->path, &(ifile->st)) < 0) {
- fprintf(stderr,"%s: stat of %s failed.\n",
- Progname, ifile->path);
- perror(ifile->path);
- exit(2);
- }
-
- len = ifile->st.st_size;
-
- ifile->fd = open(ifile->path, ifile->flags[FL_OPEN].value);
- if (ifile->fd < 0) {
- fprintf(stderr,"%s: cannot open %s\n", Progname, ifile->path);
- perror(ifile->path);
- exit(2);
- }
-
-
- ofile->fd = open(ofile->path, ofile->flags[FL_OPEN].value, 0644);
- if (ofile->fd < 0) {
- fprintf(stderr,"%s: cannot open %s\n", Progname, ofile->path);
- perror(ofile->path);
- exit(3);
- }
-
- if (print_flags_set) {
- print_flags("Input ", ifile);
- print_flags("Output", ofile);
- if (hack)
- print_flags("Hack ", hfile);
- }
-
-
- ifile->p = mmap(NULL, len, ifile->flags[FL_PROT].value,
- ifile->flags[FL_MAP].value, ifile->fd, 0);
- if (ifile->p == MAP_FAILED) {
- fprintf(stderr,"%s: cannot mmap %s\n", Progname, ifile->path);
- perror(ifile->path);
- exit(2);
- }
-
- ofile->p = mmap(NULL, len, ofile->flags[FL_PROT].value,
- ofile->flags[FL_MAP].value , ofile->fd, 0);
- if (ofile->p == MAP_FAILED) {
- fprintf(stderr,"%s: cannot mmap %s\n", Progname, ofile->path);
- perror(ofile->path);
- exit(3);
- }
-
- if (hack) {
- int error;
-
- error = mprotect(ofile->p, len, hfile->flags[FL_PROT].value);
- if (error) {
- fprintf(stderr,"%s: mprotect call failed.\n", Progname);
- perror("mprotect");
- exit(3);
- }
- }
-
- bcopy(ifile->p, ofile->p, len);
-
- printf("%s complete.\n", Progname);
- return 0;
-}
-
-static mfile_t *
-new_mfile(void)
-{
- mfile_t *ptr = (mfile_t *)malloc(sizeof(*ptr));
- if (ptr)
- bzero(ptr, sizeof *ptr);
-
- return ptr;
-}
-
-
-static int
-mfile_opt(char * s, mfile_t *f)
-{
- int i;
- ftype_t type;
-
- for (i = 0; i < num_Flags; i++) {
- if(!strcasecmp(Flags[i].name, s)) {
-
- /* Zero value if this is 1st arg of this type */
-
- type = Flags[i].type;
- if (f->flags[type].arg++ == 0)
- f->flags[type].value = 0;
- f->flags[type].value |= Flags[i].value;
- return 0;
- }
- }
- return -1; /* error - string not found */
-}
-
-static void
-Usage(void)
-{
- int i;
-
- fprintf(stderr,
- "Usage: %s [-d] [-i flag] [-i flag] [-o flag] ... file1 file2\n",
- Progname);
- fprintf(stderr, "Valid flag values are:\n");
-
- for (i = 0; i < num_Flags; i++) {
- fprintf(stderr,"%15s",Flags[i].name);
- if ((i+1)%4 == 0 || i == num_Flags-1)
- fprintf(stderr,"\n");
- else
- fprintf(stderr,",");
- }
- exit(1);
-}
-
-static void
-print_flags(char *s, mfile_t *f)
-{
- int i;
- ftype_t type;
-
- printf("DEBUG - %s flags:\n", s);
- for (i = 0; i < num_Flags; i++) {
- type = Flags[i].type;
- if (type == FL_OPEN && Flags[i].value == O_RDONLY &&
- ((f->flags[type].value) & 3) == 0)
- /* Hack to print out O_RDONLY */
- printf("\t%s\n", Flags[i].name);
- else if ((Flags[i].value & (f->flags[type].value)) != 0)
- printf("\t%s\n", Flags[i].name);
- }
-}
projects / xfstests-dev.git / blobdiff