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sftp.c
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/* $OpenBSD: sftp.c,v 1.209 2021/04/03 06:58:30 djm Exp $ */
/*
* Copyright (c) 2001-2004 Damien Miller <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "includes.h"
#include <sys/types.h>
#include <sys/ioctl.h>
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/wait.h>
#ifdef HAVE_SYS_STATVFS_H
#include <sys/statvfs.h>
#endif
#include <ctype.h>
#include <errno.h>
#ifdef HAVE_PATHS_H
# include <paths.h>
#endif
#ifdef HAVE_LIBGEN_H
#include <libgen.h>
#endif
#ifdef HAVE_LOCALE_H
# include <locale.h>
#endif
#ifdef USE_LIBEDIT
#include <histedit.h>
#else
typedef void EditLine;
#endif
#include <limits.h>
#include <signal.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_UTIL_H
# include <util.h>
#endif
#include "xmalloc.h"
#include "log.h"
#include "pathnames.h"
#include "misc.h"
#include "utf8.h"
#include "sftp.h"
#include "ssherr.h"
#include "sshbuf.h"
#include "sftp-common.h"
#include "sftp-client.h"
/* File to read commands from */
FILE* infile;
/* Are we in batchfile mode? */
int batchmode = 0;
/* PID of ssh transport process */
static volatile pid_t sshpid = -1;
/* Suppress diagnostic messages */
int quiet = 0;
/* This is set to 0 if the progressmeter is not desired. */
int showprogress = 1;
/* When this option is set, we always recursively download/upload directories */
int global_rflag = 0;
/* When this option is set, we resume download or upload if possible */
int global_aflag = 0;
/* When this option is set, the file transfers will always preserve times */
int global_pflag = 0;
/* When this option is set, transfers will have fsync() called on each file */
int global_fflag = 0;
/* SIGINT received during command processing */
volatile sig_atomic_t interrupted = 0;
/* I wish qsort() took a separate ctx for the comparison function...*/
int sort_flag;
glob_t *sort_glob;
/* Context used for commandline completion */
struct complete_ctx {
struct sftp_conn *conn;
char **remote_pathp;
};
int remote_glob(struct sftp_conn *, const char *, int,
int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
extern char *__progname;
/* Separators for interactive commands */
#define WHITESPACE " \t\r\n"
/* ls flags */
#define LS_LONG_VIEW 0x0001 /* Full view ala ls -l */
#define LS_SHORT_VIEW 0x0002 /* Single row view ala ls -1 */
#define LS_NUMERIC_VIEW 0x0004 /* Long view with numeric uid/gid */
#define LS_NAME_SORT 0x0008 /* Sort by name (default) */
#define LS_TIME_SORT 0x0010 /* Sort by mtime */
#define LS_SIZE_SORT 0x0020 /* Sort by file size */
#define LS_REVERSE_SORT 0x0040 /* Reverse sort order */
#define LS_SHOW_ALL 0x0080 /* Don't skip filenames starting with '.' */
#define LS_SI_UNITS 0x0100 /* Display sizes as K, M, G, etc. */
#define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW|LS_SI_UNITS)
#define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
/* Commands for interactive mode */
enum sftp_command {
I_CHDIR = 1,
I_CHGRP,
I_CHMOD,
I_CHOWN,
I_DF,
I_GET,
I_HELP,
I_LCHDIR,
I_LINK,
I_LLS,
I_LMKDIR,
I_LPWD,
I_LS,
I_LUMASK,
I_MKDIR,
I_PUT,
I_PWD,
I_QUIT,
I_REGET,
I_RENAME,
I_REPUT,
I_RM,
I_RMDIR,
I_SHELL,
I_SYMLINK,
I_VERSION,
I_PROGRESS,
};
struct CMD {
const char *c;
const int n;
const int t;
};
/* Type of completion */
#define NOARGS 0
#define REMOTE 1
#define LOCAL 2
static const struct CMD cmds[] = {
{ "bye", I_QUIT, NOARGS },
{ "cd", I_CHDIR, REMOTE },
{ "chdir", I_CHDIR, REMOTE },
{ "chgrp", I_CHGRP, REMOTE },
{ "chmod", I_CHMOD, REMOTE },
{ "chown", I_CHOWN, REMOTE },
{ "df", I_DF, REMOTE },
{ "dir", I_LS, REMOTE },
{ "exit", I_QUIT, NOARGS },
{ "get", I_GET, REMOTE },
{ "help", I_HELP, NOARGS },
{ "lcd", I_LCHDIR, LOCAL },
{ "lchdir", I_LCHDIR, LOCAL },
{ "lls", I_LLS, LOCAL },
{ "lmkdir", I_LMKDIR, LOCAL },
{ "ln", I_LINK, REMOTE },
{ "lpwd", I_LPWD, LOCAL },
{ "ls", I_LS, REMOTE },
{ "lumask", I_LUMASK, NOARGS },
{ "mkdir", I_MKDIR, REMOTE },
{ "mget", I_GET, REMOTE },
{ "mput", I_PUT, LOCAL },
{ "progress", I_PROGRESS, NOARGS },
{ "put", I_PUT, LOCAL },
{ "pwd", I_PWD, REMOTE },
{ "quit", I_QUIT, NOARGS },
{ "reget", I_REGET, REMOTE },
{ "rename", I_RENAME, REMOTE },
{ "reput", I_REPUT, LOCAL },
{ "rm", I_RM, REMOTE },
{ "rmdir", I_RMDIR, REMOTE },
{ "symlink", I_SYMLINK, REMOTE },
{ "version", I_VERSION, NOARGS },
{ "!", I_SHELL, NOARGS },
{ "?", I_HELP, NOARGS },
{ NULL, -1, -1 }
};
/* ARGSUSED */
static void
killchild(int signo)
{
pid_t pid;
pid = sshpid;
if (pid > 1) {
kill(pid, SIGTERM);
waitpid(pid, NULL, 0);
}
_exit(1);
}
/* ARGSUSED */
static void
suspchild(int signo)
{
if (sshpid > 1) {
kill(sshpid, signo);
while (waitpid(sshpid, NULL, WUNTRACED) == -1 && errno == EINTR)
continue;
}
kill(getpid(), SIGSTOP);
}
/* ARGSUSED */
static void
cmd_interrupt(int signo)
{
const char msg[] = "\rInterrupt \n";
int olderrno = errno;
(void)write(STDERR_FILENO, msg, sizeof(msg) - 1);
interrupted = 1;
errno = olderrno;
}
/*ARGSUSED*/
static void
sigchld_handler(int sig)
{
int save_errno = errno;
pid_t pid;
const char msg[] = "\rConnection closed. \n";
/* Report if ssh transport process dies. */
while ((pid = waitpid(sshpid, NULL, WNOHANG)) == -1 && errno == EINTR)
continue;
if (pid == sshpid) {
(void)write(STDERR_FILENO, msg, sizeof(msg) - 1);
sshpid = -1;
}
errno = save_errno;
}
static void
help(void)
{
printf("Available commands:\n"
"bye Quit sftp\n"
"cd path Change remote directory to 'path'\n"
"chgrp [-h] grp path Change group of file 'path' to 'grp'\n"
"chmod [-h] mode path Change permissions of file 'path' to 'mode'\n"
"chown [-h] own path Change owner of file 'path' to 'own'\n"
"df [-hi] [path] Display statistics for current directory or\n"
" filesystem containing 'path'\n"
"exit Quit sftp\n"
"get [-afpR] remote [local] Download file\n"
"help Display this help text\n"
"lcd path Change local directory to 'path'\n"
"lls [ls-options [path]] Display local directory listing\n"
"lmkdir path Create local directory\n"
"ln [-s] oldpath newpath Link remote file (-s for symlink)\n"
"lpwd Print local working directory\n"
"ls [-1afhlnrSt] [path] Display remote directory listing\n"
"lumask umask Set local umask to 'umask'\n"
"mkdir path Create remote directory\n"
"progress Toggle display of progress meter\n"
"put [-afpR] local [remote] Upload file\n"
"pwd Display remote working directory\n"
"quit Quit sftp\n"
"reget [-fpR] remote [local] Resume download file\n"
"rename oldpath newpath Rename remote file\n"
"reput [-fpR] local [remote] Resume upload file\n"
"rm path Delete remote file\n"
"rmdir path Remove remote directory\n"
"symlink oldpath newpath Symlink remote file\n"
"version Show SFTP version\n"
"!command Execute 'command' in local shell\n"
"! Escape to local shell\n"
"? Synonym for help\n");
}
static void
local_do_shell(const char *args)
{
int status;
char *shell;
pid_t pid;
if (!*args)
args = NULL;
if ((shell = getenv("SHELL")) == NULL || *shell == '\0')
shell = _PATH_BSHELL;
if ((pid = fork()) == -1)
fatal("Couldn't fork: %s", strerror(errno));
if (pid == 0) {
/* XXX: child has pipe fds to ssh subproc open - issue? */
if (args) {
debug3("Executing %s -c \"%s\"", shell, args);
execl(shell, shell, "-c", args, (char *)NULL);
} else {
debug3("Executing %s", shell);
execl(shell, shell, (char *)NULL);
}
fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
strerror(errno));
_exit(1);
}
while (waitpid(pid, &status, 0) == -1)
if (errno != EINTR)
fatal("Couldn't wait for child: %s", strerror(errno));
if (!WIFEXITED(status))
error("Shell exited abnormally");
else if (WEXITSTATUS(status))
error("Shell exited with status %d", WEXITSTATUS(status));
}
static void
local_do_ls(const char *args)
{
if (!args || !*args)
local_do_shell(_PATH_LS);
else {
int len = strlen(_PATH_LS " ") + strlen(args) + 1;
char *buf = xmalloc(len);
/* XXX: quoting - rip quoting code from ftp? */
snprintf(buf, len, _PATH_LS " %s", args);
local_do_shell(buf);
free(buf);
}
}
/* Strip one path (usually the pwd) from the start of another */
static char *
path_strip(const char *path, const char *strip)
{
size_t len;
if (strip == NULL)
return (xstrdup(path));
len = strlen(strip);
if (strncmp(path, strip, len) == 0) {
if (strip[len - 1] != '/' && path[len] == '/')
len++;
return (xstrdup(path + len));
}
return (xstrdup(path));
}
static int
parse_getput_flags(const char *cmd, char **argv, int argc,
int *aflag, int *fflag, int *pflag, int *rflag)
{
extern int opterr, optind, optopt, optreset;
int ch;
optind = optreset = 1;
opterr = 0;
*aflag = *fflag = *rflag = *pflag = 0;
while ((ch = getopt(argc, argv, "afPpRr")) != -1) {
switch (ch) {
case 'a':
*aflag = 1;
break;
case 'f':
*fflag = 1;
break;
case 'p':
case 'P':
*pflag = 1;
break;
case 'r':
case 'R':
*rflag = 1;
break;
default:
error("%s: Invalid flag -%c", cmd, optopt);
return -1;
}
}
return optind;
}
static int
parse_link_flags(const char *cmd, char **argv, int argc, int *sflag)
{
extern int opterr, optind, optopt, optreset;
int ch;
optind = optreset = 1;
opterr = 0;
*sflag = 0;
while ((ch = getopt(argc, argv, "s")) != -1) {
switch (ch) {
case 's':
*sflag = 1;
break;
default:
error("%s: Invalid flag -%c", cmd, optopt);
return -1;
}
}
return optind;
}
static int
parse_rename_flags(const char *cmd, char **argv, int argc, int *lflag)
{
extern int opterr, optind, optopt, optreset;
int ch;
optind = optreset = 1;
opterr = 0;
*lflag = 0;
while ((ch = getopt(argc, argv, "l")) != -1) {
switch (ch) {
case 'l':
*lflag = 1;
break;
default:
error("%s: Invalid flag -%c", cmd, optopt);
return -1;
}
}
return optind;
}
static int
parse_ls_flags(char **argv, int argc, int *lflag)
{
extern int opterr, optind, optopt, optreset;
int ch;
optind = optreset = 1;
opterr = 0;
*lflag = LS_NAME_SORT;
while ((ch = getopt(argc, argv, "1Safhlnrt")) != -1) {
switch (ch) {
case '1':
*lflag &= ~VIEW_FLAGS;
*lflag |= LS_SHORT_VIEW;
break;
case 'S':
*lflag &= ~SORT_FLAGS;
*lflag |= LS_SIZE_SORT;
break;
case 'a':
*lflag |= LS_SHOW_ALL;
break;
case 'f':
*lflag &= ~SORT_FLAGS;
break;
case 'h':
*lflag |= LS_SI_UNITS;
break;
case 'l':
*lflag &= ~LS_SHORT_VIEW;
*lflag |= LS_LONG_VIEW;
break;
case 'n':
*lflag &= ~LS_SHORT_VIEW;
*lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
break;
case 'r':
*lflag |= LS_REVERSE_SORT;
break;
case 't':
*lflag &= ~SORT_FLAGS;
*lflag |= LS_TIME_SORT;
break;
default:
error("ls: Invalid flag -%c", optopt);
return -1;
}
}
return optind;
}
static int
parse_df_flags(const char *cmd, char **argv, int argc, int *hflag, int *iflag)
{
extern int opterr, optind, optopt, optreset;
int ch;
optind = optreset = 1;
opterr = 0;
*hflag = *iflag = 0;
while ((ch = getopt(argc, argv, "hi")) != -1) {
switch (ch) {
case 'h':
*hflag = 1;
break;
case 'i':
*iflag = 1;
break;
default:
error("%s: Invalid flag -%c", cmd, optopt);
return -1;
}
}
return optind;
}
static int
parse_ch_flags(const char *cmd, char **argv, int argc, int *hflag)
{
extern int opterr, optind, optopt, optreset;
int ch;
optind = optreset = 1;
opterr = 0;
*hflag = 0;
while ((ch = getopt(argc, argv, "h")) != -1) {
switch (ch) {
case 'h':
*hflag = 1;
break;
default:
error("%s: Invalid flag -%c", cmd, optopt);
return -1;
}
}
return optind;
}
static int
parse_no_flags(const char *cmd, char **argv, int argc)
{
extern int opterr, optind, optopt, optreset;
int ch;
optind = optreset = 1;
opterr = 0;
while ((ch = getopt(argc, argv, "")) != -1) {
switch (ch) {
default:
error("%s: Invalid flag -%c", cmd, optopt);
return -1;
}
}
return optind;
}
static int
process_get(struct sftp_conn *conn, const char *src, const char *dst,
const char *pwd, int pflag, int rflag, int resume, int fflag)
{
char *abs_src = NULL;
char *abs_dst = NULL;
glob_t g;
char *filename, *tmp=NULL;
int i, r, err = 0;
abs_src = xstrdup(src);
abs_src = make_absolute(abs_src, pwd);
memset(&g, 0, sizeof(g));
debug3("Looking up %s", abs_src);
if ((r = remote_glob(conn, abs_src, GLOB_MARK, NULL, &g)) != 0) {
if (r == GLOB_NOSPACE) {
error("Too many matches for \"%s\".", abs_src);
} else {
error("File \"%s\" not found.", abs_src);
}
err = -1;
goto out;
}
/*
* If multiple matches then dst must be a directory or
* unspecified.
*/
if (g.gl_matchc > 1 && dst != NULL && !local_is_dir(dst)) {
error("Multiple source paths, but destination "
"\"%s\" is not a directory", dst);
err = -1;
goto out;
}
for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
tmp = xstrdup(g.gl_pathv[i]);
if ((filename = basename(tmp)) == NULL) {
error("basename %s: %s", tmp, strerror(errno));
free(tmp);
err = -1;
goto out;
}
if (g.gl_matchc == 1 && dst) {
if (local_is_dir(dst)) {
abs_dst = path_append(dst, filename);
} else {
abs_dst = xstrdup(dst);
}
} else if (dst) {
abs_dst = path_append(dst, filename);
} else {
abs_dst = xstrdup(filename);
}
free(tmp);
resume |= global_aflag;
if (!quiet && resume)
mprintf("Resuming %s to %s\n",
g.gl_pathv[i], abs_dst);
else if (!quiet && !resume)
mprintf("Fetching %s to %s\n",
g.gl_pathv[i], abs_dst);
if (globpath_is_dir(g.gl_pathv[i]) && (rflag || global_rflag)) {
if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
pflag || global_pflag, 1, resume,
fflag || global_fflag) == -1)
err = -1;
} else {
if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
pflag || global_pflag, resume,
fflag || global_fflag) == -1)
err = -1;
}
free(abs_dst);
abs_dst = NULL;
}
out:
free(abs_src);
globfree(&g);
return(err);
}
static int
process_put(struct sftp_conn *conn, const char *src, const char *dst,
const char *pwd, int pflag, int rflag, int resume, int fflag)
{
char *tmp_dst = NULL;
char *abs_dst = NULL;
char *tmp = NULL, *filename = NULL;
glob_t g;
int err = 0;
int i, dst_is_dir = 1;
struct stat sb;
if (dst) {
tmp_dst = xstrdup(dst);
tmp_dst = make_absolute(tmp_dst, pwd);
}
memset(&g, 0, sizeof(g));
debug3("Looking up %s", src);
if (glob(src, GLOB_NOCHECK | GLOB_MARK, NULL, &g)) {
error("File \"%s\" not found.", src);
err = -1;
goto out;
}
/* If we aren't fetching to pwd then stash this status for later */
if (tmp_dst != NULL)
dst_is_dir = remote_is_dir(conn, tmp_dst);
/* If multiple matches, dst may be directory or unspecified */
if (g.gl_matchc > 1 && tmp_dst && !dst_is_dir) {
error("Multiple paths match, but destination "
"\"%s\" is not a directory", tmp_dst);
err = -1;
goto out;
}
for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
if (stat(g.gl_pathv[i], &sb) == -1) {
err = -1;
error("stat %s: %s", g.gl_pathv[i], strerror(errno));
continue;
}
tmp = xstrdup(g.gl_pathv[i]);
if ((filename = basename(tmp)) == NULL) {
error("basename %s: %s", tmp, strerror(errno));
free(tmp);
err = -1;
goto out;
}
if (g.gl_matchc == 1 && tmp_dst) {
/* If directory specified, append filename */
if (dst_is_dir)
abs_dst = path_append(tmp_dst, filename);
else
abs_dst = xstrdup(tmp_dst);
} else if (tmp_dst) {
abs_dst = path_append(tmp_dst, filename);
} else {
abs_dst = make_absolute(xstrdup(filename), pwd);
}
free(tmp);
resume |= global_aflag;
if (!quiet && resume)
mprintf("Resuming upload of %s to %s\n",
g.gl_pathv[i], abs_dst);
else if (!quiet && !resume)
mprintf("Uploading %s to %s\n",
g.gl_pathv[i], abs_dst);
if (globpath_is_dir(g.gl_pathv[i]) && (rflag || global_rflag)) {
if (upload_dir(conn, g.gl_pathv[i], abs_dst,
pflag || global_pflag, 1, resume,
fflag || global_fflag) == -1)
err = -1;
} else {
if (do_upload(conn, g.gl_pathv[i], abs_dst,
pflag || global_pflag, resume,
fflag || global_fflag) == -1)
err = -1;
}
}
out:
free(abs_dst);
free(tmp_dst);
globfree(&g);
return(err);
}
static int
sdirent_comp(const void *aa, const void *bb)
{
SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
#define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
if (sort_flag & LS_NAME_SORT)
return (rmul * strcmp(a->filename, b->filename));
else if (sort_flag & LS_TIME_SORT)
return (rmul * NCMP(a->a.mtime, b->a.mtime));
else if (sort_flag & LS_SIZE_SORT)
return (rmul * NCMP(a->a.size, b->a.size));
fatal("Unknown ls sort type");
}
/* sftp ls.1 replacement for directories */
static int
do_ls_dir(struct sftp_conn *conn, const char *path,
const char *strip_path, int lflag)
{
int n;
u_int c = 1, colspace = 0, columns = 1;
SFTP_DIRENT **d;
if ((n = do_readdir(conn, path, &d)) != 0)
return (n);
if (!(lflag & LS_SHORT_VIEW)) {
u_int m = 0, width = 80;
struct winsize ws;
char *tmp;
/* Count entries for sort and find longest filename */
for (n = 0; d[n] != NULL; n++) {
if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
m = MAXIMUM(m, strlen(d[n]->filename));
}
/* Add any subpath that also needs to be counted */
tmp = path_strip(path, strip_path);
m += strlen(tmp);
free(tmp);
if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
width = ws.ws_col;
columns = width / (m + 2);
columns = MAXIMUM(columns, 1);
colspace = width / columns;
colspace = MINIMUM(colspace, width);
}
if (lflag & SORT_FLAGS) {
for (n = 0; d[n] != NULL; n++)
; /* count entries */
sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
qsort(d, n, sizeof(*d), sdirent_comp);
}
for (n = 0; d[n] != NULL && !interrupted; n++) {
char *tmp, *fname;
if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
continue;
tmp = path_append(path, d[n]->filename);
fname = path_strip(tmp, strip_path);
free(tmp);
if (lflag & LS_LONG_VIEW) {
if (lflag & (LS_NUMERIC_VIEW|LS_SI_UNITS)) {
char *lname;
struct stat sb;
memset(&sb, 0, sizeof(sb));
attrib_to_stat(&d[n]->a, &sb);
lname = ls_file(fname, &sb, 1,
(lflag & LS_SI_UNITS));
mprintf("%s\n", lname);
free(lname);
} else
mprintf("%s\n", d[n]->longname);
} else {
mprintf("%-*s", colspace, fname);
if (c >= columns) {
printf("\n");
c = 1;
} else
c++;
}
free(fname);
}
if (!(lflag & LS_LONG_VIEW) && (c != 1))
printf("\n");
free_sftp_dirents(d);
return (0);
}
static int
sglob_comp(const void *aa, const void *bb)
{
u_int a = *(const u_int *)aa;
u_int b = *(const u_int *)bb;
const char *ap = sort_glob->gl_pathv[a];
const char *bp = sort_glob->gl_pathv[b];
const struct stat *as = sort_glob->gl_statv[a];
const struct stat *bs = sort_glob->gl_statv[b];
int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
#define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
if (sort_flag & LS_NAME_SORT)
return (rmul * strcmp(ap, bp));
else if (sort_flag & LS_TIME_SORT) {
#if defined(HAVE_STRUCT_STAT_ST_MTIM)
if (timespeccmp(&as->st_mtim, &bs->st_mtim, ==))
return 0;
return timespeccmp(&as->st_mtim, &bs->st_mtim, <) ?
rmul : -rmul;
#elif defined(HAVE_STRUCT_STAT_ST_MTIME)
return (rmul * NCMP(as->st_mtime, bs->st_mtime));
#else
return rmul * 1;
#endif
} else if (sort_flag & LS_SIZE_SORT)
return (rmul * NCMP(as->st_size, bs->st_size));
fatal("Unknown ls sort type");
}
/* sftp ls.1 replacement which handles path globs */
static int
do_globbed_ls(struct sftp_conn *conn, const char *path,
const char *strip_path, int lflag)
{
char *fname, *lname;
glob_t g;
int err, r;
struct winsize ws;
u_int i, j, nentries, *indices = NULL, c = 1;
u_int colspace = 0, columns = 1, m = 0, width = 80;
memset(&g, 0, sizeof(g));
if ((r = remote_glob(conn, path,
GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE|GLOB_KEEPSTAT|GLOB_NOSORT,
NULL, &g)) != 0 ||
(g.gl_pathc && !g.gl_matchc)) {
if (g.gl_pathc)
globfree(&g);
if (r == GLOB_NOSPACE) {
error("Can't ls: Too many matches for \"%s\"", path);
} else {
error("Can't ls: \"%s\" not found", path);
}
return -1;
}
if (interrupted)
goto out;
/*
* If the glob returns a single match and it is a directory,
* then just list its contents.
*/
if (g.gl_matchc == 1 && g.gl_statv[0] != NULL &&
S_ISDIR(g.gl_statv[0]->st_mode)) {
err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
globfree(&g);
return err;
}
if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
width = ws.ws_col;
if (!(lflag & LS_SHORT_VIEW)) {
/* Count entries for sort and find longest filename */
for (i = 0; g.gl_pathv[i]; i++)
m = MAXIMUM(m, strlen(g.gl_pathv[i]));
columns = width / (m + 2);
columns = MAXIMUM(columns, 1);
colspace = width / columns;
}
/*
* Sorting: rather than mess with the contents of glob_t, prepare
* an array of indices into it and sort that. For the usual
* unsorted case, the indices are just the identity 1=1, 2=2, etc.
*/
for (nentries = 0; g.gl_pathv[nentries] != NULL; nentries++)
; /* count entries */
indices = calloc(nentries, sizeof(*indices));
for (i = 0; i < nentries; i++)
indices[i] = i;
if (lflag & SORT_FLAGS) {
sort_glob = &g;
sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
qsort(indices, nentries, sizeof(*indices), sglob_comp);
sort_glob = NULL;
}
for (j = 0; j < nentries && !interrupted; j++) {
i = indices[j];
fname = path_strip(g.gl_pathv[i], strip_path);
if (lflag & LS_LONG_VIEW) {
if (g.gl_statv[i] == NULL) {
error("no stat information for %s", fname);
continue;
}
lname = ls_file(fname, g.gl_statv[i], 1,
(lflag & LS_SI_UNITS));
mprintf("%s\n", lname);
free(lname);
} else {
mprintf("%-*s", colspace, fname);
if (c >= columns) {
printf("\n");
c = 1;
} else
c++;
}
free(fname);
}