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#include "ssh.h"
#include "files.h"
#include <sys/types.h>
#include <sys/wait.h>
#include <ctype.h>
#define SSH_LOGON_DONE 1
#define SSH_ASK_PASSWD 2
#define SSH_REMOTE_HAS_HASHRAT 4
#define SSH_REMOTE_HAS_SHA1SUM 8
#define SSH_REMOTE_HAS_MD5SUM 16
static char *SSHGenerateReplayTerminator(char *RetStr, const char *Command)
{
return(FormatStr(RetStr,"%s-%lu-%lu-%lu",Command,getpid(),time(NULL),rand()));
}
static void SSHRequestPasswd(char **Passwd)
{
STREAM *S;
char inchar;
S=STREAMFromFD(0);
//Turn off echo (and other things)
TTYConfig(0,0,0);
fprintf(stderr,"Password: ");
fflush(NULL);
inchar=STREAMReadChar(S);
while ((inchar != EOF) && (inchar != '\n') && (inchar != '\r'))
{
*Passwd=AddCharToStr(*Passwd,inchar);
write(2,"*",1);
inchar=STREAMReadChar(S);
}
StripCRLF(*Passwd);
//turn echo back on
TTYReset(0);
printf("\n");
STREAMDestroy(S);
}
static STREAM *SSHOpenHashrat(HashratCtx *Ctx, const char *URL, char **Path)
{
char *Tempstr=NULL;
const char *ptr;
ptr=URL+4; //past ssh:
while (*ptr=='/') ptr++;
ptr=strchr(ptr,'/');
if (! ptr) return(NULL);
Tempstr=CopyStrLen(Tempstr,URL,ptr-URL);
if (strncmp(ptr,"/./",3)==0) ptr+=3;
*Path=QuoteCharsInStr(*Path,ptr," ;&'`\"");
if (! Ctx->NetCon) Ctx->NetCon=STREAMOpen(Tempstr, "r");
DestroyString(Tempstr);
return(Ctx->NetCon);
}
STREAM *SSHGet(HashratCtx *Ctx, const char *URL)
{
char *Tempstr=NULL, *Path=NULL;
const char *ptr;
STREAM *S;
struct timeval tv;
//collect any previous ssh's
while (waitpid(-1,NULL,WNOHANG) > 0);
//clean up bytes in the stream
S=SSHOpenHashrat(Ctx, URL, &Path);
if (S)
{
Tempstr=MCopyStr(Tempstr,"cat '",Path,"' 2>/dev/null \n",NULL);
STREAMWriteLine(Tempstr,S);
STREAMFlush(S);
tv.tv_usec=0;
tv.tv_sec=2;
FDSelect(S->in_fd, SELECT_READ, &tv);
}
Destroy(Path);
Destroy(Tempstr);
return(S);
}
static void Decode_LS_Output(const char *Line, char **Path, struct stat *Stat)
{
char *Token=NULL;
const char *ptr, *tptr;
//219884 -rw-r--r-- 1 root root 56980 Feb 13 18:06 filestore.o
memset(Stat,0,sizeof(struct stat));
ptr=Line;
while (isspace(*ptr)) ptr++;
ptr=GetToken(ptr,"\\S",&Token,0);
Stat->st_ino=atol(Token);
ptr=GetToken(ptr,"\\S",&Token,0);
if (StrValid(Token) > 9)
{
tptr=Token;
switch (*tptr)
{
case 'd':
Stat->st_mode |=S_IFDIR;
break;
case 'l':
Stat->st_mode |=S_IFLNK;
break;
case 'c':
Stat->st_mode |=S_IFCHR;
break;
case 'b':
Stat->st_mode |=S_IFBLK;
break;
case 's':
Stat->st_mode |=S_IFSOCK;
break;
default:
Stat->st_mode |=S_IFREG;
break;
}
tptr++;
if (*tptr=='r') Stat->st_mode |= S_IRUSR;
tptr++;
if (*tptr=='w') Stat->st_mode |= S_IWUSR;
tptr++;
if (*tptr=='x') Stat->st_mode |= S_IXUSR;
tptr++;
if (*tptr=='r') Stat->st_mode |= S_IRGRP;
tptr++;
if (*tptr=='w') Stat->st_mode |= S_IWGRP;
tptr++;
if (*tptr=='x') Stat->st_mode |= S_IXGRP;
tptr++;
if (*tptr=='r') Stat->st_mode |= S_IROTH;
tptr++;
if (*tptr=='w') Stat->st_mode |= S_IWOTH;
tptr++;
if (*tptr=='x') Stat->st_mode |= S_IXOTH;
}
ptr=GetToken(ptr,"\\S",&Token,0);
//user id
ptr=GetToken(ptr,"\\S",&Token,0);
Stat->st_uid=atol(Token);
//group id
ptr=GetToken(ptr,"\\S",&Token,0);
Stat->st_gid=atol(Token);
//Size
ptr=GetToken(ptr,"\\S",&Token,0);
Stat->st_size=atol(Token);
/*
StripTrailingWhitespace(Token);
FI->Size=atoi(Token);
*/
//Date Str
ptr=GetToken(ptr,"\\S",&Token,0);
ptr=GetToken(ptr,"\\S",&Token,0);
// DateStr=MCatStr(DateStr," ",Token,NULL);
ptr=GetToken(ptr,"\\S",&Token,0);
// DateStr=MCatStr(DateStr," ",Token,NULL);
*Path=CopyStr(*Path,ptr);
Destroy(Token);
}
int SSHGlob(HashratCtx *Ctx, const char *URL, ListNode *Files)
{
char *Tempstr=NULL, *Path=NULL, *TermLine=NULL, *wptr;
//don't make this const, we change a char with it
const char *ptr;
STREAM *S;
int RetVal=FT_FILE;
struct stat *Stat;
S=SSHOpenHashrat(Ctx, URL, &Path);
if (S)
{
TermLine=SSHGenerateReplayTerminator(TermLine, "LIST");
Tempstr=MCopyStr(Tempstr,"ls -Llidn ",Path," 2> /dev/null\necho ",TermLine,"\n",NULL);
STREAMWriteLine(Tempstr,S);
STREAMFlush(S);
Tempstr=STREAMReadLine(Tempstr,S);
while (Tempstr)
{
StripTrailingWhitespace(Tempstr);
if (strcmp(Tempstr,TermLine)==0) break;
Stat=(struct stat *) calloc(1,sizeof(struct stat));
Decode_LS_Output(Tempstr, &Path, Stat);
if (S_ISDIR(Stat->st_mode)) RetVal=FT_DIR;
if (StrValid(Path))
{
Tempstr=MCatStr(Tempstr,"/",Path,NULL);
if (Files) ListAddNamedItem(Files,Tempstr,Stat);
else free(Stat);
}
else free(Stat);
Tempstr=STREAMReadLine(Tempstr,S);
}
}
//Don't close 'S', it is reused as Ctx->NetCon
//STREAMClose(S);
Destroy(Path);
Destroy(Tempstr);
Destroy(TermLine);
return(RetVal);
}
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