#include <stdlib.h>
#include <stdarg.h>
#include <assert.h>
+#include <limits.h>
#define PUTTY_DO_GLOBALS
#include "putty.h"
#include "sftp.h"
#include "int64.h"
+/*
+ * Since SFTP is a request-response oriented protocol, it requires
+ * no buffer management: when we send data, we stop and wait for an
+ * acknowledgement _anyway_, and so we can't possibly overfill our
+ * send buffer.
+ */
+
/* ----------------------------------------------------------------------
* String handling routines.
*/
-char *dupstr(char *s) {
+char *dupstr(char *s)
+{
int len = strlen(s);
- char *p = smalloc(len+1);
+ char *p = smalloc(len + 1);
strcpy(p, s);
return p;
}
/* Allocate the concatenation of N strings. Terminate arg list with NULL. */
-char *dupcat(char *s1, ...) {
+char *dupcat(char *s1, ...)
+{
int len;
char *p, *q, *sn;
va_list ap;
}
va_end(ap);
- p = smalloc(len+1);
+ p = smalloc(len + 1);
strcpy(p, s1);
q = p + strlen(p);
* canonification fails, at least fall back to returning a _valid_
* pathname (though it may be ugly, eg /home/simon/../foobar).
*/
-char *canonify(char *name) {
+char *canonify(char *name)
+{
char *fullname, *canonname;
if (name[0] == '/') {
fullname = dupstr(name);
} else {
char *slash;
- if (pwd[strlen(pwd)-1] == '/')
+ if (pwd[strlen(pwd) - 1] == '/')
slash = "";
else
slash = "/";
sfree(fullname);
return canonname;
} else {
- /*
- * Attempt number 2. Some FXP_REALPATH implementations
- * (glibc-based ones, in particular) require the _whole_
- * path to point to something that exists, whereas others
- * (BSD-based) only require all but the last component to
- * exist. So if the first call failed, we should strip off
- * everything from the last slash onwards and try again,
- * then put the final component back on.
- *
- * Special cases:
- *
- * - if the last component is "/." or "/..", then we don't
- * bother trying this because there's no way it can work.
- *
- * - if the thing actually ends with a "/", we remove it
- * before we start. Except if the string is "/" itself
- * (although I can't see why we'd have got here if so,
- * because surely "/" would have worked the first
- * time?), in which case we don't bother.
- *
- * - if there's no slash in the string at all, give up in
- * confusion (we expect at least one because of the way
- * we constructed the string).
- */
-
- int i;
- char *returnname;
+ /*
+ * Attempt number 2. Some FXP_REALPATH implementations
+ * (glibc-based ones, in particular) require the _whole_
+ * path to point to something that exists, whereas others
+ * (BSD-based) only require all but the last component to
+ * exist. So if the first call failed, we should strip off
+ * everything from the last slash onwards and try again,
+ * then put the final component back on.
+ *
+ * Special cases:
+ *
+ * - if the last component is "/." or "/..", then we don't
+ * bother trying this because there's no way it can work.
+ *
+ * - if the thing actually ends with a "/", we remove it
+ * before we start. Except if the string is "/" itself
+ * (although I can't see why we'd have got here if so,
+ * because surely "/" would have worked the first
+ * time?), in which case we don't bother.
+ *
+ * - if there's no slash in the string at all, give up in
+ * confusion (we expect at least one because of the way
+ * we constructed the string).
+ */
- i = strlen(fullname);
- if (i > 2 && fullname[i-1] == '/')
- fullname[--i] = '\0'; /* strip trailing / unless at pos 0 */
- while (i > 0 && fullname[--i] != '/');
+ int i;
+ char *returnname;
- /*
- * Give up on special cases.
- */
- if (fullname[i] != '/' || /* no slash at all */
- !strcmp(fullname+i, "/.") || /* ends in /. */
- !strcmp(fullname+i, "/..") || /* ends in /.. */
- !strcmp(fullname, "/")) {
- return fullname;
- }
+ i = strlen(fullname);
+ if (i > 2 && fullname[i - 1] == '/')
+ fullname[--i] = '\0'; /* strip trailing / unless at pos 0 */
+ while (i > 0 && fullname[--i] != '/');
- /*
- * Now i points at the slash. Deal with the final special
- * case i==0 (ie the whole path was "/nonexistentfile").
- */
- fullname[i] = '\0'; /* separate the string */
- if (i == 0) {
- canonname = fxp_realpath("/");
- } else {
- canonname = fxp_realpath(fullname);
- }
+ /*
+ * Give up on special cases.
+ */
+ if (fullname[i] != '/' || /* no slash at all */
+ !strcmp(fullname + i, "/.") || /* ends in /. */
+ !strcmp(fullname + i, "/..") || /* ends in /.. */
+ !strcmp(fullname, "/")) {
+ return fullname;
+ }
- if (!canonname)
- return fullname; /* even that failed; give up */
+ /*
+ * Now i points at the slash. Deal with the final special
+ * case i==0 (ie the whole path was "/nonexistentfile").
+ */
+ fullname[i] = '\0'; /* separate the string */
+ if (i == 0) {
+ canonname = fxp_realpath("/");
+ } else {
+ canonname = fxp_realpath(fullname);
+ }
- /*
- * We have a canonical name for all but the last path
- * component. Concatenate the last component and return.
- */
- returnname = dupcat(canonname,
- canonname[strlen(canonname)-1] == '/' ? "" : "/",
- fullname+i+1, NULL);
- sfree(fullname);
- sfree(canonname);
- return returnname;
+ if (!canonname)
+ return fullname; /* even that failed; give up */
+
+ /*
+ * We have a canonical name for all but the last path
+ * component. Concatenate the last component and return.
+ */
+ returnname = dupcat(canonname,
+ canonname[strlen(canonname) - 1] ==
+ '/' ? "" : "/", fullname + i + 1, NULL);
+ sfree(fullname);
+ sfree(canonname);
+ return returnname;
}
}
struct sftp_command {
char **words;
int nwords, wordssize;
- int (*obey)(struct sftp_command *);/* returns <0 to quit */
+ int (*obey) (struct sftp_command *); /* returns <0 to quit */
};
-int sftp_cmd_null(struct sftp_command *cmd) {
+int sftp_cmd_null(struct sftp_command *cmd)
+{
return 0;
}
-int sftp_cmd_unknown(struct sftp_command *cmd) {
+int sftp_cmd_unknown(struct sftp_command *cmd)
+{
printf("psftp: unknown command \"%s\"\n", cmd->words[0]);
return 0;
}
-int sftp_cmd_quit(struct sftp_command *cmd) {
+int sftp_cmd_quit(struct sftp_command *cmd)
+{
return -1;
}
* List a directory. If no arguments are given, list pwd; otherwise
* list the directory given in words[1].
*/
-static int sftp_ls_compare(const void *av, const void *bv) {
- const struct fxp_name *a = (const struct fxp_name *)av;
- const struct fxp_name *b = (const struct fxp_name *)bv;
+static int sftp_ls_compare(const void *av, const void *bv)
+{
+ const struct fxp_name *a = (const struct fxp_name *) av;
+ const struct fxp_name *b = (const struct fxp_name *) bv;
return strcmp(a->filename, b->filename);
}
-int sftp_cmd_ls(struct sftp_command *cmd) {
+int sftp_cmd_ls(struct sftp_command *cmd)
+{
struct fxp_handle *dirh;
struct fxp_names *names;
struct fxp_name *ournames;
if (nnames + names->nnames >= namesize) {
namesize += names->nnames + 128;
- ournames = srealloc(ournames, namesize * sizeof(*ournames));
+ ournames =
+ srealloc(ournames, namesize * sizeof(*ournames));
}
for (i = 0; i < names->nnames; i++)
* Change directories. We do this by canonifying the new name, then
* trying to OPENDIR it. Only if that succeeds do we set the new pwd.
*/
-int sftp_cmd_cd(struct sftp_command *cmd) {
+int sftp_cmd_cd(struct sftp_command *cmd)
+{
struct fxp_handle *dirh;
char *dir;
}
/*
- * Get a file and save it at the local end.
+ * Get a file and save it at the local end. We have two very
+ * similar commands here: `get' and `reget', which differ in that
+ * `reget' checks for the existence of the destination file and
+ * starts from where a previous aborted transfer left off.
*/
-int sftp_cmd_get(struct sftp_command *cmd) {
+int sftp_general_get(struct sftp_command *cmd, int restart)
+{
struct fxp_handle *fh;
char *fname, *outfname;
uint64 offset;
sfree(fname);
return 0;
}
- fp = fopen(outfname, "wb");
+
+ if (restart) {
+ fp = fopen(outfname, "rb+");
+ } else {
+ fp = fopen(outfname, "wb");
+ }
+
if (!fp) {
printf("local: unable to open %s\n", outfname);
- fxp_close(fh);
+ fxp_close(fh);
sfree(fname);
return 0;
}
- printf("remote:%s => local:%s\n", fname, outfname);
+ if (restart) {
+ long posn;
+ fseek(fp, 0L, SEEK_END);
+ posn = ftell(fp);
+ printf("reget: restarting at file position %ld\n", posn);
+ offset = uint64_make(0, posn);
+ } else {
+ offset = uint64_make(0, 0);
+ }
- offset = uint64_make(0,0);
+ printf("remote:%s => local:%s\n", fname, outfname);
/*
* FIXME: we can use FXP_FSTAT here to get the file size, and
int wpos, wlen;
len = fxp_read(fh, buffer, offset, sizeof(buffer));
- if ((len == -1 && fxp_error_type() == SSH_FX_EOF) ||
- len == 0)
+ if ((len == -1 && fxp_error_type() == SSH_FX_EOF) || len == 0)
break;
if (len == -1) {
printf("error while reading: %s\n", fxp_error());
break;
}
-
+
wpos = 0;
while (wpos < len) {
- wlen = fwrite(buffer, 1, len-wpos, fp);
+ wlen = fwrite(buffer, 1, len - wpos, fp);
if (wlen <= 0) {
printf("error while writing local file\n");
break;
return 0;
}
+int sftp_cmd_get(struct sftp_command *cmd)
+{
+ return sftp_general_get(cmd, 0);
+}
+int sftp_cmd_reget(struct sftp_command *cmd)
+{
+ return sftp_general_get(cmd, 1);
+}
/*
- * Send a file and store it at the remote end.
+ * Send a file and store it at the remote end. We have two very
+ * similar commands here: `put' and `reput', which differ in that
+ * `reput' checks for the existence of the destination file and
+ * starts from where a previous aborted transfer left off.
*/
-int sftp_cmd_put(struct sftp_command *cmd) {
+int sftp_general_put(struct sftp_command *cmd, int restart)
+{
struct fxp_handle *fh;
char *fname, *origoutfname, *outfname;
uint64 offset;
fp = fopen(fname, "rb");
if (!fp) {
printf("local: unable to open %s\n", fname);
- fxp_close(fh);
sfree(outfname);
return 0;
}
- fh = fxp_open(outfname, SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC);
+ if (restart) {
+ fh = fxp_open(outfname,
+ SSH_FXF_WRITE);
+ } else {
+ fh = fxp_open(outfname,
+ SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC);
+ }
if (!fh) {
printf("%s: %s\n", outfname, fxp_error());
sfree(outfname);
return 0;
}
- printf("local:%s => remote:%s\n", fname, outfname);
+ if (restart) {
+ char decbuf[30];
+ struct fxp_attrs attrs;
+ if (!fxp_fstat(fh, &attrs)) {
+ printf("read size of %s: %s\n", outfname, fxp_error());
+ sfree(outfname);
+ return 0;
+ }
+ if (!(attrs.flags & SSH_FILEXFER_ATTR_SIZE)) {
+ printf("read size of %s: size was not given\n", outfname);
+ sfree(outfname);
+ return 0;
+ }
+ offset = attrs.size;
+ uint64_decimal(offset, decbuf);
+ printf("reput: restarting at file position %s\n", decbuf);
+ if (uint64_compare(offset, uint64_make(0, LONG_MAX)) > 0) {
+ printf("reput: remote file is larger than we can deal with\n");
+ sfree(outfname);
+ return 0;
+ }
+ if (fseek(fp, offset.lo, SEEK_SET) != 0)
+ fseek(fp, 0, SEEK_END); /* *shrug* */
+ } else {
+ offset = uint64_make(0, 0);
+ }
- offset = uint64_make(0,0);
+ printf("local:%s => remote:%s\n", fname, outfname);
/*
* FIXME: we can use FXP_FSTAT here to get the file size, and
return 0;
}
+int sftp_cmd_put(struct sftp_command *cmd)
+{
+ return sftp_general_put(cmd, 0);
+}
+int sftp_cmd_reput(struct sftp_command *cmd)
+{
+ return sftp_general_put(cmd, 1);
+}
+
+int sftp_cmd_mkdir(struct sftp_command *cmd)
+{
+ char *dir;
+ int result;
+
+
+ if (cmd->nwords < 2) {
+ printf("mkdir: expects a directory\n");
+ return 0;
+ }
+
+ dir = canonify(cmd->words[1]);
+ if (!dir) {
+ printf("%s: %s\n", dir, fxp_error());
+ return 0;
+ }
+
+ result = fxp_mkdir(dir);
+ if (!result) {
+ printf("mkdir %s: %s\n", dir, fxp_error());
+ sfree(dir);
+ return 0;
+ }
+
+ sfree(dir);
+ return 0;
+}
+
+int sftp_cmd_rmdir(struct sftp_command *cmd)
+{
+ char *dir;
+ int result;
+
+
+ if (cmd->nwords < 2) {
+ printf("rmdir: expects a directory\n");
+ return 0;
+ }
+
+ dir = canonify(cmd->words[1]);
+ if (!dir) {
+ printf("%s: %s\n", dir, fxp_error());
+ return 0;
+ }
+
+ result = fxp_rmdir(dir);
+ if (!result) {
+ printf("rmdir %s: %s\n", dir, fxp_error());
+ sfree(dir);
+ return 0;
+ }
+
+ sfree(dir);
+ return 0;
+}
+
+int sftp_cmd_rm(struct sftp_command *cmd)
+{
+ char *fname;
+ int result;
+
+ if (cmd->nwords < 2) {
+ printf("rm: expects a filename\n");
+ return 0;
+ }
+
+ fname = canonify(cmd->words[1]);
+ if (!fname) {
+ printf("%s: %s\n", fname, fxp_error());
+ return 0;
+ }
+
+ result = fxp_remove(fname);
+ if (!result) {
+ printf("rm %s: %s\n", fname, fxp_error());
+ sfree(fname);
+ return 0;
+ }
+
+ sfree(fname);
+ return 0;
+
+}
+
+int sftp_cmd_mv(struct sftp_command *cmd)
+{
+ char *srcfname, *dstfname;
+ int result;
+
+ if (cmd->nwords < 3) {
+ printf("mv: expects two filenames\n");
+ return 0;
+ }
+ srcfname = canonify(cmd->words[1]);
+ if (!srcfname) {
+ printf("%s: %s\n", srcfname, fxp_error());
+ return 0;
+ }
+
+ dstfname = canonify(cmd->words[2]);
+ if (!dstfname) {
+ printf("%s: %s\n", dstfname, fxp_error());
+ return 0;
+ }
+
+ result = fxp_rename(srcfname, dstfname);
+ if (!result) {
+ char const *error = fxp_error();
+ struct fxp_attrs attrs;
+
+ /*
+ * The move might have failed because dstfname pointed at a
+ * directory. We check this possibility now: if dstfname
+ * _is_ a directory, we re-attempt the move by appending
+ * the basename of srcfname to dstfname.
+ */
+ result = fxp_stat(dstfname, &attrs);
+ if (result &&
+ (attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) &&
+ (attrs.permissions & 0040000)) {
+ char *p;
+ char *newname, *newcanon;
+ printf("(destination %s is a directory)\n", dstfname);
+ p = srcfname + strlen(srcfname);
+ while (p > srcfname && p[-1] != '/') p--;
+ newname = dupcat(dstfname, "/", p, NULL);
+ newcanon = canonify(newname);
+ sfree(newname);
+ if (newcanon) {
+ sfree(dstfname);
+ dstfname = newcanon;
+ result = fxp_rename(srcfname, dstfname);
+ error = result ? NULL : fxp_error();
+ }
+ }
+ if (error) {
+ printf("mv %s %s: %s\n", srcfname, dstfname, error);
+ sfree(srcfname);
+ sfree(dstfname);
+ return 0;
+ }
+ }
+ printf("%s -> %s\n", srcfname, dstfname);
+
+ sfree(srcfname);
+ sfree(dstfname);
+ return 0;
+}
+
+int sftp_cmd_chmod(struct sftp_command *cmd)
+{
+ char *fname, *mode;
+ int result;
+ struct fxp_attrs attrs;
+ unsigned attrs_clr, attrs_xor, oldperms, newperms;
+
+ if (cmd->nwords < 3) {
+ printf("chmod: expects a mode specifier and a filename\n");
+ return 0;
+ }
+
+ /*
+ * Attempt to parse the mode specifier in cmd->words[1]. We
+ * don't support the full horror of Unix chmod; instead we
+ * support a much simpler syntax in which the user can either
+ * specify an octal number, or a comma-separated sequence of
+ * [ugoa]*[-+=][rwxst]+. (The initial [ugoa] sequence may
+ * _only_ be omitted if the only attribute mentioned is t,
+ * since all others require a user/group/other specification.
+ * Additionally, the s attribute may not be specified for any
+ * [ugoa] specifications other than exactly u or exactly g.
+ */
+ attrs_clr = attrs_xor = 0;
+ mode = cmd->words[1];
+ if (mode[0] >= '0' && mode[0] <= '9') {
+ if (mode[strspn(mode, "01234567")]) {
+ printf("chmod: numeric file modes should"
+ " contain digits 0-7 only\n");
+ return 0;
+ }
+ attrs_clr = 07777;
+ sscanf(mode, "%o", &attrs_xor);
+ attrs_xor &= attrs_clr;
+ } else {
+ while (*mode) {
+ char *modebegin = mode;
+ unsigned subset, perms;
+ int action;
+
+ subset = 0;
+ while (*mode && *mode != ',' &&
+ *mode != '+' && *mode != '-' && *mode != '=') {
+ switch (*mode) {
+ case 'u': subset |= 04700; break; /* setuid, user perms */
+ case 'g': subset |= 02070; break; /* setgid, group perms */
+ case 'o': subset |= 00007; break; /* just other perms */
+ case 'a': subset |= 06777; break; /* all of the above */
+ default:
+ printf("chmod: file mode '%.*s' contains unrecognised"
+ " user/group/other specifier '%c'\n",
+ strcspn(modebegin, ","), modebegin, *mode);
+ return 0;
+ }
+ mode++;
+ }
+ if (!*mode || *mode == ',') {
+ printf("chmod: file mode '%.*s' is incomplete\n",
+ strcspn(modebegin, ","), modebegin);
+ return 0;
+ }
+ action = *mode++;
+ if (!*mode || *mode == ',') {
+ printf("chmod: file mode '%.*s' is incomplete\n",
+ strcspn(modebegin, ","), modebegin);
+ return 0;
+ }
+ perms = 0;
+ while (*mode && *mode != ',') {
+ switch (*mode) {
+ case 'r': perms |= 00444; break;
+ case 'w': perms |= 00222; break;
+ case 'x': perms |= 00111; break;
+ case 't': perms |= 01000; subset |= 01000; break;
+ case 's':
+ if ((subset & 06777) != 04700 &&
+ (subset & 06777) != 02070) {
+ printf("chmod: file mode '%.*s': set[ug]id bit should"
+ " be used with exactly one of u or g only\n",
+ strcspn(modebegin, ","), modebegin);
+ return 0;
+ }
+ perms |= 06000;
+ break;
+ default:
+ printf("chmod: file mode '%.*s' contains unrecognised"
+ " permission specifier '%c'\n",
+ strcspn(modebegin, ","), modebegin, *mode);
+ return 0;
+ }
+ mode++;
+ }
+ if (!(subset & 06777) && (perms &~ subset)) {
+ printf("chmod: file mode '%.*s' contains no user/group/other"
+ " specifier and permissions other than 't' \n",
+ strcspn(modebegin, ","), modebegin, *mode);
+ return 0;
+ }
+ perms &= subset;
+ switch (action) {
+ case '+':
+ attrs_clr |= perms;
+ attrs_xor |= perms;
+ break;
+ case '-':
+ attrs_clr |= perms;
+ attrs_xor &= ~perms;
+ break;
+ case '=':
+ attrs_clr |= subset;
+ attrs_xor |= perms;
+ break;
+ }
+ if (*mode) mode++; /* eat comma */
+ }
+ }
+
+ fname = canonify(cmd->words[2]);
+ if (!fname) {
+ printf("%s: %s\n", fname, fxp_error());
+ return 0;
+ }
+
+ result = fxp_stat(fname, &attrs);
+ if (!result || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
+ printf("get attrs for %s: %s\n", fname,
+ result ? "file permissions not provided" : fxp_error());
+ sfree(fname);
+ return 0;
+ }
+
+ attrs.flags = SSH_FILEXFER_ATTR_PERMISSIONS; /* perms _only_ */
+ oldperms = attrs.permissions & 07777;
+ attrs.permissions &= ~attrs_clr;
+ attrs.permissions ^= attrs_xor;
+ newperms = attrs.permissions & 07777;
+
+ result = fxp_setstat(fname, attrs);
+
+ if (!result) {
+ printf("set attrs for %s: %s\n", fname, fxp_error());
+ sfree(fname);
+ return 0;
+ }
+
+ printf("%s: %04o -> %04o\n", fname, oldperms, newperms);
+
+ sfree(fname);
+ return 0;
+}
static struct sftp_cmd_lookup {
char *name;
- int (*obey)(struct sftp_command *);
+ int (*obey) (struct sftp_command *);
} sftp_lookup[] = {
/*
* List of sftp commands. This is binary-searched so it MUST be
* in ASCII order.
*/
- {"bye", sftp_cmd_quit},
- {"cd", sftp_cmd_cd},
- {"dir", sftp_cmd_ls},
- {"exit", sftp_cmd_quit},
- {"get", sftp_cmd_get},
- {"ls", sftp_cmd_ls},
- {"put", sftp_cmd_put},
- {"quit", sftp_cmd_quit},
-};
+ {
+ "bye", sftp_cmd_quit}, {
+ "cd", sftp_cmd_cd}, {
+ "chmod", sftp_cmd_chmod}, {
+ "del", sftp_cmd_rm}, {
+ "delete", sftp_cmd_rm}, {
+ "dir", sftp_cmd_ls}, {
+ "exit", sftp_cmd_quit}, {
+ "get", sftp_cmd_get}, {
+ "ls", sftp_cmd_ls}, {
+ "mkdir", sftp_cmd_mkdir}, {
+ "mv", sftp_cmd_mv}, {
+ "put", sftp_cmd_put}, {
+ "quit", sftp_cmd_quit}, {
+ "reget", sftp_cmd_reget}, {
+ "ren", sftp_cmd_mv}, {
+ "rename", sftp_cmd_mv}, {
+ "reput", sftp_cmd_reput}, {
+ "rm", sftp_cmd_rm}, {
+ "rmdir", sftp_cmd_rmdir},};
/* ----------------------------------------------------------------------
* Command line reading and parsing.
*/
-struct sftp_command *sftp_getcmd(void) {
+struct sftp_command *sftp_getcmd(FILE *fp, int mode, int modeflags)
+{
char *line;
int linelen, linesize;
struct sftp_command *cmd;
char *p, *q, *r;
int quoting;
- printf("psftp> ");
+ if ((mode == 0) || (modeflags & 1)) {
+ printf("psftp> ");
+ }
fflush(stdout);
cmd = smalloc(sizeof(struct sftp_command));
linesize += 512;
line = srealloc(line, linesize);
- ret = fgets(line+linelen, linesize-linelen, stdin);
+ ret = fgets(line + linelen, linesize - linelen, fp);
+ if (modeflags & 1) {
+ printf("%s", ret);
+ }
if (!ret || (linelen == 0 && line[0] == '\0')) {
cmd->obey = sftp_cmd_quit;
printf("quit\n");
return cmd; /* eof */
}
- len = linelen + strlen(line+linelen);
+ len = linelen + strlen(line + linelen);
linelen += len;
- if (line[linelen-1] == '\n') {
+ if (line[linelen - 1] == '\n') {
linelen--;
line[linelen] = '\0';
break;
p = line;
while (*p) {
/* skip whitespace */
- while (*p && (*p == ' ' || *p == '\t')) p++;
+ while (*p && (*p == ' ' || *p == '\t'))
+ p++;
/* mark start of word */
q = r = p; /* q sits at start, r writes word */
quoting = 0;
if (!quoting && (*p == ' ' || *p == '\t'))
break; /* reached end of word */
else if (*p == '"' && p[1] == '"')
- p+=2, *r++ = '"'; /* a literal quote */
+ p += 2, *r++ = '"'; /* a literal quote */
else if (*p == '"')
p++, quoting = !quoting;
else
*r++ = *p++;
}
- if (*p) p++; /* skip over the whitespace */
+ if (*p)
+ p++; /* skip over the whitespace */
*r = '\0';
if (cmd->nwords >= cmd->wordssize) {
cmd->wordssize = cmd->nwords + 16;
- cmd->words = srealloc(cmd->words, cmd->wordssize*sizeof(char *));
+ cmd->words =
+ srealloc(cmd->words, cmd->wordssize * sizeof(char *));
}
cmd->words[cmd->nwords++] = q;
}
return cmd;
}
-void do_sftp(void) {
+void do_sftp(int mode, int modeflags, char *batchfile)
+{
+ FILE *fp;
+
/*
* Do protocol initialisation.
*/
if (!fxp_init()) {
fprintf(stderr,
- "Fatal: unable to initialise SFTP: %s\n",
- fxp_error());
+ "Fatal: unable to initialise SFTP: %s\n", fxp_error());
+ return;
}
/*
}
pwd = dupstr(homedir);
- /* ------------------------------------------------------------------
- * Now we're ready to do Real Stuff.
+ /*
+ * Batch mode?
*/
- while (1) {
- struct sftp_command *cmd;
- cmd = sftp_getcmd();
- if (!cmd)
- break;
- if (cmd->obey(cmd) < 0)
- break;
+ if (mode == 0) {
+
+ /* ------------------------------------------------------------------
+ * Now we're ready to do Real Stuff.
+ */
+ while (1) {
+ struct sftp_command *cmd;
+ cmd = sftp_getcmd(stdin, 0, 0);
+ if (!cmd)
+ break;
+ if (cmd->obey(cmd) < 0)
+ break;
+ }
+ } else {
+ fp = fopen(batchfile, "r");
+ if (!fp) {
+ printf("Fatal: unable to open %s\n", batchfile);
+ return;
+ }
+ while (1) {
+ struct sftp_command *cmd;
+ cmd = sftp_getcmd(fp, mode, modeflags);
+ if (!cmd)
+ break;
+ if (cmd->obey(cmd) < 0)
+ break;
+ if (fxp_error() != NULL) {
+ if (!(modeflags & 2))
+ break;
+ }
+ }
+ fclose(fp);
+
}
}
static int verbose = 0;
void verify_ssh_host_key(char *host, int port, char *keytype,
- char *keystr, char *fingerprint) {
+ char *keystr, char *fingerprint)
+{
int ret;
+ HANDLE hin;
+ DWORD savemode, i;
static const char absentmsg[] =
- "The server's host key is not cached in the registry. You\n"
- "have no guarantee that the server is the computer you\n"
- "think it is.\n"
- "The server's key fingerprint is:\n"
- "%s\n"
- "If you trust this host, enter \"y\" to add the key to\n"
- "PuTTY's cache and carry on connecting.\n"
- "If you do not trust this host, enter \"n\" to abandon the\n"
- "connection.\n"
- "Continue connecting? (y/n) ";
+ "The server's host key is not cached in the registry. You\n"
+ "have no guarantee that the server is the computer you\n"
+ "think it is.\n"
+ "The server's key fingerprint is:\n"
+ "%s\n"
+ "If you trust this host, enter \"y\" to add the key to\n"
+ "PuTTY's cache and carry on connecting.\n"
+ "If you want to carry on connecting just once, without\n"
+ "adding the key to the cache, enter \"n\".\n"
+ "If you do not trust this host, press Return to abandon the\n"
+ "connection.\n"
+ "Store key in cache? (y/n) ";
static const char wrongmsg[] =
- "WARNING - POTENTIAL SECURITY BREACH!\n"
- "The server's host key does not match the one PuTTY has\n"
- "cached in the registry. This means that either the\n"
- "server administrator has changed the host key, or you\n"
- "have actually connected to another computer pretending\n"
- "to be the server.\n"
- "The new key fingerprint is:\n"
- "%s\n"
- "If you were expecting this change and trust the new key,\n"
- "enter Yes to update PuTTY's cache and continue connecting.\n"
- "If you want to carry on connecting but without updating\n"
- "the cache, enter No.\n"
- "If you want to abandon the connection completely, press\n"
- "Return to cancel. Pressing Return is the ONLY guaranteed\n"
- "safe choice.\n"
- "Update cached key? (y/n, Return cancels connection) ";
+ "WARNING - POTENTIAL SECURITY BREACH!\n"
+ "The server's host key does not match the one PuTTY has\n"
+ "cached in the registry. This means that either the\n"
+ "server administrator has changed the host key, or you\n"
+ "have actually connected to another computer pretending\n"
+ "to be the server.\n"
+ "The new key fingerprint is:\n"
+ "%s\n"
+ "If you were expecting this change and trust the new key,\n"
+ "enter \"y\" to update PuTTY's cache and continue connecting.\n"
+ "If you want to carry on connecting but without updating\n"
+ "the cache, enter \"n\".\n"
+ "If you want to abandon the connection completely, press\n"
+ "Return to cancel. Pressing Return is the ONLY guaranteed\n"
+ "safe choice.\n"
+ "Update cached key? (y/n, Return cancels connection) ";
static const char abandoned[] = "Connection abandoned.\n";
*/
ret = verify_host_key(host, port, keytype, keystr);
- if (ret == 0) /* success - key matched OK */
- return;
- if (ret == 2) { /* key was different */
- fprintf(stderr, wrongmsg, fingerprint);
- if (fgets(line, sizeof(line), stdin) &&
- line[0] != '\0' && line[0] != '\n') {
- if (line[0] == 'y' || line[0] == 'Y')
- store_host_key(host, port, keytype, keystr);
- } else {
- fprintf(stderr, abandoned);
- exit(0);
- }
+ if (ret == 0) /* success - key matched OK */
+ return;
+
+ if (ret == 2) { /* key was different */
+ fprintf(stderr, wrongmsg, fingerprint);
+ fflush(stderr);
}
- if (ret == 1) { /* key was absent */
- fprintf(stderr, absentmsg, fingerprint);
- if (fgets(line, sizeof(line), stdin) &&
- (line[0] == 'y' || line[0] == 'Y'))
- store_host_key(host, port, keytype, keystr);
- else {
- fprintf(stderr, abandoned);
- exit(0);
- }
+ if (ret == 1) { /* key was absent */
+ fprintf(stderr, absentmsg, fingerprint);
+ fflush(stderr);
+ }
+
+ hin = GetStdHandle(STD_INPUT_HANDLE);
+ GetConsoleMode(hin, &savemode);
+ SetConsoleMode(hin, (savemode | ENABLE_ECHO_INPUT |
+ ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT));
+ ReadFile(hin, line, sizeof(line) - 1, &i, NULL);
+ SetConsoleMode(hin, savemode);
+
+ if (line[0] != '\0' && line[0] != '\r' && line[0] != '\n') {
+ if (line[0] == 'y' || line[0] == 'Y')
+ store_host_key(host, port, keytype, keystr);
+ } else {
+ fprintf(stderr, abandoned);
+ exit(0);
+ }
+}
+
+/*
+ * Ask whether the selected cipher is acceptable (since it was
+ * below the configured 'warn' threshold).
+ * cs: 0 = both ways, 1 = client->server, 2 = server->client
+ */
+void askcipher(char *ciphername, int cs)
+{
+ HANDLE hin;
+ DWORD savemode, i;
+
+ static const char msg[] =
+ "The first %scipher supported by the server is\n"
+ "%s, which is below the configured warning threshold.\n"
+ "Continue with connection? (y/n) ";
+ static const char abandoned[] = "Connection abandoned.\n";
+
+ char line[32];
+
+ fprintf(stderr, msg,
+ (cs == 0) ? "" :
+ (cs == 1) ? "client-to-server " :
+ "server-to-client ",
+ ciphername);
+ fflush(stderr);
+
+ hin = GetStdHandle(STD_INPUT_HANDLE);
+ GetConsoleMode(hin, &savemode);
+ SetConsoleMode(hin, (savemode | ENABLE_ECHO_INPUT |
+ ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT));
+ ReadFile(hin, line, sizeof(line) - 1, &i, NULL);
+ SetConsoleMode(hin, savemode);
+
+ if (line[0] == 'y' || line[0] == 'Y') {
+ return;
+ } else {
+ fprintf(stderr, abandoned);
+ exit(0);
}
}
*/
void fatalbox(char *fmt, ...)
{
- char str[0x100]; /* Make the size big enough */
+ char str[0x100]; /* Make the size big enough */
va_list ap;
va_start(ap, fmt);
strcpy(str, "Fatal:");
- vsprintf(str+strlen(str), fmt, ap);
+ vsprintf(str + strlen(str), fmt, ap);
va_end(ap);
strcat(str, "\n");
fprintf(stderr, str);
}
void connection_fatal(char *fmt, ...)
{
- char str[0x100]; /* Make the size big enough */
+ char str[0x100]; /* Make the size big enough */
va_list ap;
va_start(ap, fmt);
strcpy(str, "Fatal:");
- vsprintf(str+strlen(str), fmt, ap);
+ vsprintf(str + strlen(str), fmt, ap);
va_end(ap);
strcat(str, "\n");
fprintf(stderr, str);
exit(1);
}
-void logevent(char *string) { }
+void logevent(char *string)
+{
+}
-void ldisc_send(char *buf, int len) {
+void ldisc_send(char *buf, int len)
+{
/*
* This is only here because of the calls to ldisc_send(NULL,
* 0) in ssh.c. Nothing in PSFTP actually needs to use the
* Be told what socket we're supposed to be using.
*/
static SOCKET sftp_ssh_socket;
-char *do_select(SOCKET skt, int startup) {
+char *do_select(SOCKET skt, int startup)
+{
if (startup)
sftp_ssh_socket = skt;
else
* do this until we have enough data.
*/
-static unsigned char *outptr; /* where to put the data */
-static unsigned outlen; /* how much data required */
+static unsigned char *outptr; /* where to put the data */
+static unsigned outlen; /* how much data required */
static unsigned char *pending = NULL; /* any spare data */
-static unsigned pendlen=0, pendsize=0; /* length and phys. size of buffer */
-void from_backend(int is_stderr, char *data, int datalen) {
- unsigned char *p = (unsigned char *)data;
- unsigned len = (unsigned)datalen;
+static unsigned pendlen = 0, pendsize = 0; /* length and phys. size of buffer */
+int from_backend(int is_stderr, char *data, int datalen)
+{
+ unsigned char *p = (unsigned char *) data;
+ unsigned len = (unsigned) datalen;
/*
* stderr data is just spouted to local stderr and otherwise
*/
if (is_stderr) {
fwrite(data, 1, len, stderr);
- return;
+ return 0;
}
/*
* If this is before the real session begins, just return.
*/
if (!outptr)
- return;
+ return 0;
if (outlen > 0) {
- unsigned used = outlen;
- if (used > len) used = len;
- memcpy(outptr, p, used);
- outptr += used; outlen -= used;
- p += used; len -= used;
+ unsigned used = outlen;
+ if (used > len)
+ used = len;
+ memcpy(outptr, p, used);
+ outptr += used;
+ outlen -= used;
+ p += used;
+ len -= used;
}
if (len > 0) {
- if (pendsize < pendlen + len) {
- pendsize = pendlen + len + 4096;
- pending = (pending ? srealloc(pending, pendsize) :
- smalloc(pendsize));
- if (!pending)
- fatalbox("Out of memory");
- }
- memcpy(pending+pendlen, p, len);
- pendlen += len;
+ if (pendsize < pendlen + len) {
+ pendsize = pendlen + len + 4096;
+ pending = (pending ? srealloc(pending, pendsize) :
+ smalloc(pendsize));
+ if (!pending)
+ fatalbox("Out of memory");
+ }
+ memcpy(pending + pendlen, p, len);
+ pendlen += len;
}
+
+ return 0;
}
-int sftp_recvdata(char *buf, int len) {
- outptr = (unsigned char *)buf;
+int sftp_recvdata(char *buf, int len)
+{
+ outptr = (unsigned char *) buf;
outlen = len;
/*
* need.
*/
if (pendlen > 0) {
- unsigned pendused = pendlen;
- if (pendused > outlen)
- pendused = outlen;
+ unsigned pendused = pendlen;
+ if (pendused > outlen)
+ pendused = outlen;
memcpy(outptr, pending, pendused);
- memmove(pending, pending+pendused, pendlen-pendused);
+ memmove(pending, pending + pendused, pendlen - pendused);
outptr += pendused;
outlen -= pendused;
- pendlen -= pendused;
- if (pendlen == 0) {
- pendsize = 0;
- sfree(pending);
- pending = NULL;
- }
- if (outlen == 0)
- return 1;
+ pendlen -= pendused;
+ if (pendlen == 0) {
+ pendsize = 0;
+ sfree(pending);
+ pending = NULL;
+ }
+ if (outlen == 0)
+ return 1;
}
while (outlen > 0) {
- fd_set readfds;
+ fd_set readfds;
- FD_ZERO(&readfds);
- FD_SET(sftp_ssh_socket, &readfds);
- if (select(1, &readfds, NULL, NULL, NULL) < 0)
- return 0; /* doom */
- select_result((WPARAM)sftp_ssh_socket, (LPARAM)FD_READ);
+ FD_ZERO(&readfds);
+ FD_SET(sftp_ssh_socket, &readfds);
+ if (select(1, &readfds, NULL, NULL, NULL) < 0)
+ return 0; /* doom */
+ select_result((WPARAM) sftp_ssh_socket, (LPARAM) FD_READ);
}
return 1;
}
-int sftp_senddata(char *buf, int len) {
- back->send((unsigned char *)buf, len);
+int sftp_senddata(char *buf, int len)
+{
+ back->send((unsigned char *) buf, len);
return 1;
}
/*
* Loop through the ssh connection and authentication process.
*/
-static void ssh_sftp_init(void) {
+static void ssh_sftp_init(void)
+{
if (sftp_ssh_socket == INVALID_SOCKET)
return;
while (!back->sendok()) {
- fd_set readfds;
- FD_ZERO(&readfds);
- FD_SET(sftp_ssh_socket, &readfds);
- if (select(1, &readfds, NULL, NULL, NULL) < 0)
- return; /* doom */
- select_result((WPARAM)sftp_ssh_socket, (LPARAM)FD_READ);
+ fd_set readfds;
+ FD_ZERO(&readfds);
+ FD_SET(sftp_ssh_socket, &readfds);
+ if (select(1, &readfds, NULL, NULL, NULL) < 0)
+ return; /* doom */
+ select_result((WPARAM) sftp_ssh_socket, (LPARAM) FD_READ);
}
}
static char *password = NULL;
-static int get_password(const char *prompt, char *str, int maxlen)
+static int get_line(const char *prompt, char *str, int maxlen, int is_pw)
{
HANDLE hin, hout;
- DWORD savemode, i;
+ DWORD savemode, newmode, i;
if (password) {
- static int tried_once = 0;
-
- if (tried_once) {
- return 0;
- } else {
- strncpy(str, password, maxlen);
- str[maxlen-1] = '\0';
- tried_once = 1;
- return 1;
- }
+ static int tried_once = 0;
+
+ if (tried_once) {
+ return 0;
+ } else {
+ strncpy(str, password, maxlen);
+ str[maxlen - 1] = '\0';
+ tried_once = 1;
+ return 1;
+ }
}
hin = GetStdHandle(STD_INPUT_HANDLE);
}
GetConsoleMode(hin, &savemode);
- SetConsoleMode(hin, (savemode & (~ENABLE_ECHO_INPUT)) |
- ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT);
+ newmode = savemode | ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT;
+ if (is_pw)
+ newmode &= ~ENABLE_ECHO_INPUT;
+ else
+ newmode |= ENABLE_ECHO_INPUT;
+ SetConsoleMode(hin, newmode);
WriteFile(hout, prompt, strlen(prompt), &i, NULL);
- ReadFile(hin, str, maxlen-1, &i, NULL);
+ ReadFile(hin, str, maxlen - 1, &i, NULL);
SetConsoleMode(hin, savemode);
- if ((int)i > maxlen) i = maxlen-1; else i = i - 2;
+ if ((int) i > maxlen)
+ i = maxlen - 1;
+ else
+ i = i - 2;
str[i] = '\0';
- WriteFile(hout, "\r\n", 2, &i, NULL);
+ if (is_pw)
+ WriteFile(hout, "\r\n", 2, &i, NULL);
return 1;
}
fprintf(stderr, "Unable to initialise WinSock");
exit(1);
}
- if (LOBYTE(wsadata.wVersion) != 1 ||
- HIBYTE(wsadata.wVersion) != 1) {
+ if (LOBYTE(wsadata.wVersion) != 1 || HIBYTE(wsadata.wVersion) != 1) {
fprintf(stderr, "WinSock version is incompatible with 1.1");
exit(1);
}
printf("%s\n", ver);
printf("Usage: psftp [options] user@host\n");
printf("Options:\n");
+ printf(" -b file use specified batchfile\n");
+ printf(" -bc output batchfile commands\n");
+ printf(" -be don't stop batchfile processing if errors\n");
printf(" -v show verbose messages\n");
printf(" -P port connect to specified port\n");
printf(" -pw passw login with specified password\n");
int portnumber = 0;
char *user, *host, *userhost, *realhost;
char *err;
+ int mode = 0;
+ int modeflags = 0;
+ char *batchfile = NULL;
flags = FLAG_STDERR;
- ssh_get_password = &get_password;
+ ssh_get_line = &get_line;
init_winsock();
sk_init();
} else if (strcmp(argv[i], "-h") == 0 ||
strcmp(argv[i], "-?") == 0) {
usage();
- } else if (strcmp(argv[i], "-l") == 0 && i+1 < argc) {
+ } else if (strcmp(argv[i], "-l") == 0 && i + 1 < argc) {
user = argv[++i];
- } else if (strcmp(argv[i], "-P") == 0 && i+1 < argc) {
+ } else if (strcmp(argv[i], "-P") == 0 && i + 1 < argc) {
portnumber = atoi(argv[++i]);
- } else if (strcmp(argv[i], "-pw") == 0 && i+1 < argc) {
+ } else if (strcmp(argv[i], "-pw") == 0 && i + 1 < argc) {
password = argv[++i];
+ } else if (strcmp(argv[i], "-b") == 0 && i + 1 < argc) {
+ mode = 1;
+ batchfile = argv[++i];
+ } else if (strcmp(argv[i], "-bc") == 0 && i + 1 < argc) {
+ modeflags = modeflags | 1;
+ } else if (strcmp(argv[i], "-be") == 0 && i + 1 < argc) {
+ modeflags = modeflags | 2;
} else if (strcmp(argv[i], "--") == 0) {
i++;
break;
} else {
*host++ = '\0';
if (user) {
- printf("psftp: multiple usernames specified; using \"%s\"\n", user);
+ printf("psftp: multiple usernames specified; using \"%s\"\n",
+ user);
} else
user = userhost;
}
do_defaults(host, &cfg);
if (cfg.host[0] == '\0') {
/* No settings for this host; use defaults */
- do_defaults(NULL, &cfg);
- strncpy(cfg.host, host, sizeof(cfg.host)-1);
- cfg.host[sizeof(cfg.host)-1] = '\0';
+ do_defaults(NULL, &cfg);
+ strncpy(cfg.host, host, sizeof(cfg.host) - 1);
+ cfg.host[sizeof(cfg.host) - 1] = '\0';
cfg.port = 22;
}
/* Set username */
if (user != NULL && user[0] != '\0') {
- strncpy(cfg.username, user, sizeof(cfg.username)-1);
- cfg.username[sizeof(cfg.username)-1] = '\0';
+ strncpy(cfg.username, user, sizeof(cfg.username) - 1);
+ cfg.username[sizeof(cfg.username) - 1] = '\0';
}
if (!cfg.username[0]) {
printf("login as: ");
exit(1);
} else {
int len = strlen(cfg.username);
- if (cfg.username[len-1] == '\n')
- cfg.username[len-1] = '\0';
+ if (cfg.username[len - 1] == '\n')
+ cfg.username[len - 1] = '\0';
}
}
if (verbose && realhost != NULL)
printf("Connected to %s\n", realhost);
- do_sftp();
+ do_sftp(mode, modeflags, batchfile);
if (back != NULL && back->socket() != NULL) {
char ch;
projects / u / mdw / putty / blobdiff