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1.1 ! root 1: #include "univ.h" ! 2: #include <CC/sys/types.h> ! 3: #include <sys/param.h> ! 4: #include <CC/sys/stat.h> ! 5: #include <sys/dir.h> ! 6: #include "wd.h" ! 7: SRCFILE("wd.c") ! 8: ! 9: void NewWd() { new Wd; } ! 10: ! 11: Wd::Wd() ! 12: { ! 13: pad = new Pad((PadRcv*) this); ! 14: pad->name("pwd/cd"); ! 15: pad->banner("Working Directory:"); ! 16: prevwd = 0; ! 17: pwd(); ! 18: } ! 19: ! 20: Index Wd::carte() ! 21: { ! 22: struct direct dirbuf; ! 23: struct stat stbuf; ! 24: Menu m; ! 25: ! 26: trace( "%d.carte()", this ); OK(ZIndex); ! 27: int fd = ::open(".", 0); ! 28: if( fd >= 0 ) { ! 29: while( read(fd, (char*) &dirbuf, sizeof dirbuf) > 0 ){ ! 30: char dn[16]; ! 31: sprintf(dn, "%0.14s", dirbuf.d_name); ! 32: int len = strlen(dn); ! 33: if( len>=3 && dn[len-2]=='.' ) continue; ! 34: if( dirbuf.d_ino == 0 ! 35: || ::stat(dn, &stbuf)== -1 ! 36: || (stbuf.st_mode&S_IFMT)!=S_IFDIR ) ! 37: continue; ! 38: long opand = (long) sf("%s/%s", getwd, dn); ! 39: m.sort(sf("%s\240", dn), (Action)&Wd::kbd, opand); ! 40: } ! 41: ::close(fd); ! 42: } ! 43: return m.index(); ! 44: } ! 45: ! 46: char *Getwd() ! 47: { ! 48: char *dot = ".", *dotdot = "..", *name; ! 49: int file, off = -1; ! 50: struct stat d, dd; ! 51: struct direct dir; ! 52: int rdev, rino; ! 53: ! 54: name = ""; ! 55: ::stat("/", &d); ! 56: rdev = d.st_dev; ! 57: rino = d.st_ino; ! 58: for (;;) { ! 59: ::stat(dot, &d); ! 60: if(d.st_ino==rino && d.st_dev==rdev) goto ChDir; ! 61: if((file = open(dotdot,0)) < 0) ! 62: return "can't get working directory"; ! 63: fstat(file, &dd); ! 64: chdir(dotdot); ! 65: if(d.st_dev == dd.st_dev) { ! 66: if(d.st_ino == dd.st_ino) goto ChDir; ! 67: do ! 68: if (read(file,(char*)&dir,sizeof(dir))<sizeof(dir)) ! 69: return "can't get working directory"; ! 70: while (dir.d_ino != d.st_ino); ! 71: } ! 72: else do { ! 73: if(read(file,(char*)&dir,sizeof(dir))<sizeof(dir)) ! 74: return "can't get working directory"; ! 75: ::stat(dir.d_name, &dd); ! 76: } while(dd.st_ino != d.st_ino || dd.st_dev != d.st_dev); ! 77: close(file); ! 78: name = sf( name[0]?"%s/%s":"%s", dir.d_name, name ); ! 79: } ! 80: ChDir: ! 81: name = sf("/%s",name); ! 82: if( chdir(name) == -1 ) return "chdir error"; ! 83: return name; ! 84: } ! 85: ! 86: char *Wd::help() ! 87: { ! 88: trace( "%d.help()", this ); ! 89: return "[cd] <path> {change working directory}"; ! 90: } ! 91: ! 92: char *Wd::kbd(char *s) ! 93: { ! 94: trace( "%d.kbd(%s)", this, s ); OK("kbd"); ! 95: if( s[0]=='c' && s[1]=='d' && (s[2]==' '||s[2]==0) ) s += 2; ! 96: while( *s == ' ' ) ++s; ! 97: if( *s==0 ){ ! 98: char *getenv(char*), *e = getenv("HOME"); ! 99: if( e ) s = e; ! 100: } ! 101: if( chdir(s) == -1 ){ ! 102: pad->insert(key++, "cannot cd %s", s); ! 103: prevwd = 0; ! 104: } ! 105: pwd(SELECTLINE); ! 106: return 0; ! 107: } ! 108: ! 109: void Wd::pwd(Attrib a) ! 110: { ! 111: if( prevwd ) ! 112: pad->insert(key, a, (PadRcv*)this, ix, "%s", getwd); ! 113: getwd = Getwd(); ! 114: ix = carte(); ! 115: pad->menu(ix); ! 116: pad->insert(++key, a|DONT_CUT, (PadRcv*)this, ix, "wd=%s", getwd); ! 117: prevwd = getwd; ! 118: }
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