#if !defined(lint) && !defined(DOS) static char rcsid[] = "$Id: file.c 13703 2004-06-11 21:49:40Z hubert $"; #endif /* * Program: High level file input and output routines * * * Michael Seibel * Networks and Distributed Computing * Computing and Communications * University of Washington * Administration Builiding, AG-44 * Seattle, Washington, 98195, USA * Internet: mikes@cac.washington.edu * * Please address all bugs and comments to "pine-bugs@cac.washington.edu" * * * Pine and Pico are registered trademarks of the University of Washington. * No commercial use of these trademarks may be made without prior written * permission of the University of Washington. * * Pine, Pico, and Pilot software and its included text are Copyright * 1989-2004 by the University of Washington. * * The full text of our legal notices is contained in the file called * CPYRIGHT, included with this distribution. * */ /* * The routines in this file * handle the reading and writing of * disk files. All of details about the * reading and writing of the disk are * in "fileio.c". */ #include "headers.h" #ifdef ANSI int ifile(char *); int insmsgchar(int); #else int ifile(); int insmsgchar(); #endif char *file_split(char *, int *, char *, int); /* * Read a file into the current * buffer. This is really easy; all you do it * find the name of the file, and call the standard * "read a file into the current buffer" code. * Bound to "C-X C-R". */ fileread(f, n) int f, n; { register int s; char fname[NFILEN]; if ((s=mlreply("Read file: ", fname, NFILEN, QNORML, NULL)) != TRUE) return(s); if(gmode&MDSCUR){ emlwrite("安全模式中已關閉讀取檔案的功\能",NULL); return(0); } if (strlen(fname) == 0) { emlwrite("尚未輸入檔案名",NULL); return(0); } if((gmode & MDTREE) && !in_oper_tree(fname)){ emlwrite("無法讀取 %s 以外的檔案", opertree); return(0); } return(readin(fname, TRUE, TRUE)); } static char *inshelptext[] = { "Insert File Help Text", " ", "\tType in a file name to have it inserted into your editing", "\tbuffer between the line that the cursor is currently on", "\tand the line directly below it. You may abort this by ", "~\ttyping the ~F~2 (~^~C) key after exiting help.", " ", "End of Insert File Help", " ", NULL }; static char *writehelp[] = { "Write File Help Text", " ", "\tType in a file name to have it written out, thus saving", "\tyour buffer, to a file. You can abort this by typing ", "~\tthe ~F~2 (~^~C) key after exiting help.", " ", "End of Write File Help", " ", " ", NULL }; /* * Insert a file into the current * buffer. This is really easy; all you do it * find the name of the file, and call the standard * "insert a file into the current buffer" code. * Bound to "C-X C-I". */ insfile(f, n) int f, n; { register int s; char fname[NLINE], dir[NLINE]; int retval, bye = 0, msg = 0; char prompt[64], *infile; EXTRAKEYS menu_ins[5]; if (curbp->b_mode&MDVIEW) /* don't allow this command if */ return(rdonly()); /* we are in read only mode */ fname[0] = '\0'; while(!bye){ /* set up keymenu stuff */ if(!msg){ int last_menu = 0; menu_ins[last_menu].name = "^T"; menu_ins[last_menu].key = (CTRL|'T'); menu_ins[last_menu].label = "檔案列表"; KS_OSDATASET(&menu_ins[last_menu], KS_NONE); if(Pmaster && Pmaster->msgntext){ menu_ins[++last_menu].name = "^W"; menu_ins[last_menu].key = (CTRL|'W'); menu_ins[last_menu].label = msg ? "插入檔案" : "插入訊息"; KS_OSDATASET(&menu_ins[last_menu], KS_NONE); } #if !defined(DOS) && !defined(MAC) if(Pmaster && Pmaster->upload){ menu_ins[++last_menu].name = "^Y"; menu_ins[last_menu].key = (CTRL|'Y'); menu_ins[last_menu].label = "RcvUpload"; KS_OSDATASET(&menu_ins[last_menu], KS_NONE); } #endif /* !(DOS || MAC) */ if(gmode & MDCMPLT){ menu_ins[++last_menu].name = msg ? "" : "TAB"; menu_ins[last_menu].key = (CTRL|'I'); menu_ins[last_menu].label = msg ? "" : "完成"; KS_OSDATASET(&menu_ins[last_menu], KS_NONE); } menu_ins[++last_menu].name = NULL; } sprintf(prompt, "自%s%s插入的%s：", (msg || (gmode&MDCURDIR)) ? "目前的" : ((gmode & MDTREE) || opertree[0]) ? opertree : "家", msg ? "檔案匣" : "目錄", msg ? "信件編號" : "檔案"); s = mlreplyd(prompt, fname, NLINE, QDEFLT, msg ? NULL : menu_ins); /* something to read and it was edited or the default accepted */ if(fname[0] && (s == TRUE || s == FALSE)){ bye++; if(msg){ if((*Pmaster->msgntext)(atol(fname), insmsgchar)) emlwrite("信件 %s 已含入", fname); } else{ bye++; if(gmode&MDSCUR){ emlwrite("在限制模式中無法插入檔案",NULL); } else{ if((gmode & MDTREE) && !compresspath(opertree, fname, NLINE)){ emlwrite( "無法在 %s 以外的地方插入檔案：太多 .. 了", opertree); } else{ fixpath(fname, NLINE); if((gmode & MDTREE) && !in_oper_tree(fname)) emlwrite("無法在 %s 以外的地方插入檔案", opertree); else retval = ifile(fname); } } } } else{ switch(s){ case (CTRL|'I') : { char *fn, *p; int dirlen, l = NLINE; dir[0] = '\0'; fn = file_split(dir, &l, fname, 0); if(!pico_fncomplete(dir, fn, l - 1)) (*term.t_beep)(); } break; case (CTRL|'W'): msg = !msg; /* toggle what to insert */ break; case (CTRL|'T'): if(msg){ emlwrite("還無法選擇信件！", NULL); } else{ char *fn; int len = NLINE; fn = file_split(dir, &len, fname, 1); if(!isdir(dir, NULL, NULL)) strcpy(dir, (gmode&MDCURDIR) ? (browse_dir[0] ? browse_dir : ".") : ((gmode & MDTREE) || opertree[0]) ? opertree : (browse_dir[0] ? browse_dir :gethomedir(NULL))); else{ if(*fn){ int dirlen; dirlen = strlen(dir); if(dirlen && dir[dirlen - 1] != C_FILESEP) strcat(dir, S_FILESEP); strcat(dir, fn); if(!isdir(dir, NULL, NULL)) dir[dirlen] = '\0'; } } fname[0] = '\0'; if((s = FileBrowse(dir, NLINE, fname, NLINE, NULL, FB_READ, NULL)) == 1){ if(gmode&MDSCUR){ emlwrite("在限制模式中無法插入", NULL); sleep(2); } else{ if (infile = (char *)malloc((strlen(dir)+ strlen(S_FILESEP)+ strlen(fname)+1)*sizeof(char))){ strcpy(infile, dir); strcat(infile, S_FILESEP); strcat(infile, fname); retval = ifile(infile); free((char *) infile); } else { emlwrite("Trouble allocating space for insert!" ,NULL); sleep(3); } } bye++; } else fname[0] = '\0'; pico_refresh(FALSE, 1); if(s != 1){ update(); /* redraw on return */ continue; } } break; #if !defined(DOS) && !defined(MAC) case (CTRL|'Y') : if(Pmaster && Pmaster->upload){ char tfname[NLINE]; if(gmode&MDSCUR){ emlwrite( "\007限制模式中不允許\上載", NULL); return(0); } tfname[0] = '\0'; retval = (*Pmaster->upload)(tfname, NULL); pico_refresh(FALSE, 1); update(); if(retval){ retval = ifile(tfname); bye++; } else sleep(3); /* problem, show error! */ if(tfname[0]) /* clean up temp file */ unlink(tfname); } else (*term.t_beep)(); /* what? */ break; #endif /* !(DOS || MAC) */ case HELPCH: if(Pmaster){ VARS_TO_SAVE *saved_state; saved_state = save_pico_state(); (*Pmaster->helper)(msg ? Pmaster->ins_m_help : Pmaster->ins_help, "Help for Insert File", 1); if(saved_state){ restore_pico_state(saved_state); free_pico_state(saved_state); } } else pico_help(inshelptext, "Help for Insert File", 1); case (CTRL|'L'): pico_refresh(FALSE, 1); update(); continue; default: ctrlg(FALSE, 0); retval = s; bye++; } } } curwp->w_flag |= WFMODE|WFHARD; return(retval); } /* * split out the file name from the path. * Copy path into dirbuf, return filename, * which is a pointer into orig_fname. * lenp is the length of dirbuf. * is_for_browse - use browse dir if possible * don't want to use it for TAB-completion */ char * file_split(dirbuf, lenp, orig_fname, is_for_browse) char *dirbuf; int *lenp; char *orig_fname; int is_for_browse; { char *p, *fn; int dirlen; if(*orig_fname && (p = strrchr(orig_fname, C_FILESEP))){ fn = p + 1; (*lenp) -= fn - orig_fname; dirlen = p - orig_fname; if(p == orig_fname) strcpy(dirbuf, S_FILESEP); #ifdef DOS else if(orig_fname[0] == C_FILESEP || (isalpha((unsigned char)orig_fname[0]) && orig_fname[1] == ':')){ if(orig_fname[1] == ':' && p == orig_fname+2) dirlen = fn - orig_fname; strncpy(dirbuf, orig_fname, dirlen); dirbuf[dirlen] = '\0'; } #else else if (orig_fname[0] == C_FILESEP || orig_fname[0] == '~') { strncpy(dirbuf, orig_fname, dirlen); dirbuf[dirlen] = '\0'; } #endif else sprintf(dirbuf, "%s%c%.*s", (gmode & MDCURDIR) ? ((is_for_browse && browse_dir[0]) ? browse_dir : ".") : ((gmode & MDTREE) || opertree[0]) ? opertree : ((is_for_browse && browse_dir[0]) ? browse_dir : gethomedir(NULL)), C_FILESEP, p - orig_fname, orig_fname); } else{ fn = orig_fname; strcpy(dirbuf, (gmode & MDCURDIR) ? ((is_for_browse && browse_dir[0]) ? browse_dir : ".") : ((gmode & MDTREE) || opertree[0]) ? opertree : ((is_for_browse && browse_dir[0]) ? browse_dir : gethomedir(NULL))); } return fn; } insmsgchar(c) int c; { if(c == '\n'){ char *p; lnewline(); for(p = (glo_quote_str ? glo_quote_str : (Pmaster ? Pmaster->quote_str : NULL)); p && *p; p++) if(!linsert(1, *p)) return(0); } else if(c != '\r') /* ignore CR (likely CR of CRLF) */ return(linsert(1, c)); return(1); } /* * Read file "fname" into the current * buffer, blowing away any text found there. Called * by both the read and find commands. Return the final * status of the read. Also called by the mainline, * to read in a file specified on the command line as * an argument. */ readin(fname, lockfl, rename) char fname[]; /* name of file to read */ int lockfl; /* check for file locks? */ int rename; /* don't rename if reading from, say, alt speller */ { char line[NLINE], *linep; long nline; int s, done, newline; curbp->b_linecnt = -1; /* Must be recalculated */ if ((s = bclear(curbp)) != TRUE) /* Might be old. */ return (s); if(rename) strcpy(curbp->b_fname, fname); if ((s=ffropen(fname)) != FIOSUC){ /* Hard file open. */ if(s == FIOFNF) /* File not found. */ emlwrite("新檔", NULL); else fioperr(s, fname); } else{ int charsread = 0; emlwrite("讀取檔案", NULL); nline = 0L; done = newline = 0; while(!done) if((s = ffgetline(line, NLINE, &charsread, 1)) == FIOEOF){ curbp->b_flag &= ~(BFTEMP|BFCHG); gotobob(FALSE, 1); sprintf(line,"讀取第 %d 行", nline); emlwrite(line, NULL); break; } else{ if(newline){ lnewline(); newline = 0; } switch(s){ case FIOSUC : nline++; newline = 1; case FIOLNG : for(linep = line; charsread-- > 0; linep++) linsert(1, (unsigned char) *linep); break; default : done++; break; } } ffclose(); /* Ignore errors. */ } return(s != FIOERR && s != FIOFNF); /* true if success */ } /* * Ask for a file name, and write the * contents of the current buffer to that file. * Update the remembered file name and clear the * buffer changed flag. This handling of file names * is different from the earlier versions, and * is more compatable with Gosling EMACS than * with ITS EMACS. Bound to "C-X C-W". */ filewrite(f, n) int f, n; { register WINDOW *wp; register int s; char fname[NFILEN]; char shows[NLINE], origshows[NLINE], *bufp; EXTRAKEYS menu_write[3]; if(curbp->b_fname[0] != 0) strcpy(fname, curbp->b_fname); else fname[0] = '\0'; menu_write[0].name = "^T"; menu_write[0].label = "檔案列表"; menu_write[0].key = (CTRL|'T'); menu_write[1].name = "TAB"; menu_write[1].label = "完成"; menu_write[1].key = (CTRL|'I'); menu_write[2].name = NULL; for(;!(gmode & MDTOOL);){ s = mlreplyd("欲寫入的檔名：", fname, NFILEN, QDEFLT|QFFILE, menu_write); switch(s){ case FALSE: if(!fname[0]){ /* no file name to write to */ ctrlg(FALSE, 0); return(s); } case TRUE: if((gmode & MDTREE) && !compresspath(opertree, fname, NFILEN)){ emlwrite("無法寫入 %s 以外的檔案：太多 .. 了", opertree); sleep(2); continue; } else{ fixpath(fname, NFILEN); /* fixup ~ in file name */ if((gmode & MDTREE) && !in_oper_tree(fname)){ emlwrite("無法寫入 %s 以外的檔案", opertree); sleep(2); continue; } } break; case (CTRL|'I'): { char *fn, *p, dir[NFILEN]; int l = NFILEN; dir[0] = '\0'; if(*fname && (p = strrchr(fname, C_FILESEP))){ fn = p + 1; l -= fn - fname; if(p == fname) strcpy(dir, S_FILESEP); #ifdef DOS else if(fname[0] == C_FILESEP || (isalpha((unsigned char)fname[0]) && fname[1] == ':')){ #else else if (fname[0] == C_FILESEP || fname[0] == '~') { #endif strncpy(dir, fname, p - fname); dir[p-fname] = '\0'; } else sprintf(dir, "%s%c%.*s", (gmode & MDCURDIR) ? "." : ((gmode & MDTREE) || opertree[0]) ? opertree : gethomedir(NULL), C_FILESEP, p - fname, fname); } else{ fn = fname; strcpy(dir, (gmode & MDCURDIR) ? "." : ((gmode & MDTREE) || opertree[0]) ? opertree : gethomedir(NULL)); } if(!pico_fncomplete(dir, fn, l - 1)) (*term.t_beep)(); } continue; case (CTRL|'T'): /* If we have a file name, break up into path and file name.*/ *shows = 0; if(*fname) { if (isdir (fname, NULL, NULL)) { /* fname is a directory. */ strcpy (shows, fname); *fname = '\0'; } else { /* Find right most seperator. */ bufp = strrchr (fname, C_FILESEP); if (bufp != NULL) { /* Copy directory part to 'shows', and file * name part to front of 'fname'. */ *bufp = '\0'; strcpy (shows, fname); memcpy (fname, bufp+1, strlen (bufp+1) + 1); } } } /* If we did not end up with a valid directory, use home. */ if (!*shows || !isdir (shows, NULL, NULL)) strcpy(shows, ((gmode & MDTREE) || opertree[0]) ? opertree : (browse_dir[0] ? browse_dir : gethomedir(NULL))); strcpy(origshows, shows); if ((s = FileBrowse(shows, NLINE, fname, NFILEN, NULL, FB_SAVE, NULL)) == 1) { if (strlen(shows)+strlen(S_FILESEP)+strlen(fname) < NLINE){ strcat(shows, S_FILESEP); strcat(shows, fname); strcpy(fname, shows); } else { emlwrite("無法寫入。檔名過長！",NULL); sleep(3); } } else if (s == 0 && strcmp(shows, origshows)){ strcat(shows, S_FILESEP); strcat(shows, fname); strcpy(fname, shows); } else if (s == -1){ emlwrite("無法寫入。檔名過長！",NULL); sleep(3); } pico_refresh(FALSE, 1); update(); if(s == 1) break; else continue; case HELPCH: pico_help(writehelp, "", 1); case (CTRL|'L'): pico_refresh(FALSE, 1); update(); continue; default: return(s); break; } if(strcmp(fname, curbp->b_fname) == 0) break; if((s=fexist(fname, "w", (off_t *)NULL)) == FIOSUC){ /*exists overwrite? */ sprintf(shows, "File \"%s\" exists, OVERWRITE", fname); if((s=mlyesno(shows, FALSE)) == TRUE) break; } else if(s == FIOFNF){ break; /* go write it */ } else{ /* some error, can't write */ fioperr(s, fname); return(ABORT); } } emlwrite("正在寫入...", NULL); if ((s=writeout(fname, 0)) != -1) { if(!(gmode&MDTOOL)){ strcpy(curbp->b_fname, fname); curbp->b_flag &= ~BFCHG; wp = wheadp; /* Update mode lines. */ while (wp != NULL) { if (wp->w_bufp == curbp) if((Pmaster && s == TRUE) || Pmaster == NULL) wp->w_flag |= WFMODE; wp = wp->w_wndp; } } if(s > 1) emlwrite("寫入 %d 行", (void *)s); else emlwrite("寫入 1 行", NULL); } return ((s == -1) ? FALSE : TRUE); } /* * Save the contents of the current * buffer in its associatd file. No nothing * if nothing has changed (this may be a bug, not a * feature). Error if there is no remembered file * name for the buffer. Bound to "C-X C-S". May * get called by "C-Z". */ filesave(f, n) int f, n; { register WINDOW *wp; register int s; if (curbp->b_mode&MDVIEW) /* don't allow this command if */ return(rdonly()); /* we are in read only mode */ if ((curbp->b_flag&BFCHG) == 0) /* Return, no changes. */ return (TRUE); if (curbp->b_fname[0] == 0) { /* Must have a name. */ emlwrite("沒有檔名", NULL); sleep(2); return (FALSE); } emlwrite("正在寫入...", NULL); if ((s=writeout(curbp->b_fname, 0)) != -1) { curbp->b_flag &= ~BFCHG; wp = wheadp; /* Update mode lines. */ while (wp != NULL) { if (wp->w_bufp == curbp) if(Pmaster == NULL) wp->w_flag |= WFMODE; wp = wp->w_wndp; } if(s > 1){ emlwrite("寫入 %d 行", (void *)s); } else emlwrite("寫入 1 行", NULL); } return (s); } /* * This function performs the details of file * writing. Uses the file management routines in the * "fileio.c" package. The number of lines written is * displayed. Sadly, it looks inside a LINE; provide * a macro for this. Most of the grief is error * checking of some sort. * * If the argument readonly is set, the file is created with user read * and write permission only if it doesn't already exist. Note that the * word readonly is misleading. It is user r/w permission only. * * CHANGES: 1 Aug 91: returns number of lines written or -1 on error, MSS */ writeout(fn, readonly) char *fn; int readonly; { register int s; register int t; register LINE *lp; register int nline; if (!((s = ffwopen(fn, readonly)) == FIOSUC && ffelbowroom())) return (-1); /* Open writes message. */ lp = lforw(curbp->b_linep); /* First line. */ nline = 0; /* Number of lines. */ while (lp != curbp->b_linep) { if ((s=ffputline(&lp->l_text[0], llength(lp))) != FIOSUC) break; ++nline; lp = lforw(lp); } t = ffclose(); /* ffclose complains if error */ if(s == FIOSUC) s = t; /* report worst case */ return ((s == FIOSUC) ? nline : -1); } /* * writetmp - write a temporary file for message text, mindful of * access restrictions and included text. If n is true, include * lines that indicated included message text, otw forget them * If dir is non-null, put the temp file in that directory. */ char *writetmp(n, dir) int n; char *dir; { static char fn[NFILEN]; register int s; register int t; register LINE *lp; register int nline; tmpname(dir, fn); /* Open writes message */ if (!fn[0] || (s=ffwopen(fn, TRUE)) != FIOSUC){ if(fn[0]) (void)unlink(fn); return(NULL); } lp = lforw(curbp->b_linep); /* First line. */ nline = 0; /* Number of lines. */ while (lp != curbp->b_linep) { if(n || (!n && lp->l_text[0].c != '>')) if ((s=ffputline(&lp->l_text[0], llength(lp))) != FIOSUC) break; ++nline; lp = lforw(lp); } t = ffclose(); /* ffclose complains if error */ if(s == FIOSUC) s = t; /* remember worst case */ if (s != FIOSUC){ /* Some sort of error. */ (void)unlink(fn); return(NULL); } return(fn); } /* * Insert file "fname" into the current * buffer, Called by insert file command. Return the final * status of the read. */ ifile(fname) char fname[]; { char line[NLINE], *linep; long nline; int s, done, newline, charsread = 0; if ((s=ffropen(fname)) != FIOSUC){ /* Hard file open. */ fioperr(s, fname); return(FALSE); } gotobol(FALSE, 1); curbp->b_flag |= BFCHG; /* we have changed */ curbp->b_flag &= ~BFTEMP; /* and are not temporary*/ curbp->b_linecnt = -1; /* must be recalculated */ emlwrite("正在插入 %s。", fname); done = newline = 0; nline = 0L; while(!done) if((s = ffgetline(line, NLINE, &charsread, 1)) == FIOEOF){ if(llength(curwp->w_dotp) > curwp->w_doto) lnewline(); else forwchar(FALSE, 1); sprintf(line,"已插入 %d 行", nline); emlwrite(line, NULL); break; } else{ if(newline){ lnewline(); newline = 0; } switch(s){ case FIOSUC : /* copy line into buf */ nline++; newline = 1; case FIOLNG : for(linep = line; charsread-- > 0; linep++) linsert(1, (unsigned char) *linep); break; default : done++; } } ffclose(); /* Ignore errors. */ return(s != FIOERR); } /* * pico_fncomplete - pico's function to complete the given file name */ int pico_fncomplete(dir, fn, len) char *dir, *fn; int len; { char *p, *dlist, tmp[NLINE], dtmp[NLINE]; int n, i, match = -1; #ifdef DOS #define FILECMP(x, y) (toupper((unsigned char)(x))\ == toupper((unsigned char)(y))) #else #define FILECMP(x, y) ((x) == (y)) #endif strcpy(dtmp, dir); pfnexpand(dir = dtmp, NLINE); if(*fn && (dlist = p = getfnames(dir, fn, &n, NULL))){ memset(tmp, 0, sizeof(tmp)); while(n--){ /* any names in it */ for(i = 0; fn[i] && FILECMP(p[i], fn[i]); i++) ; if(!fn[i]){ /* match or more? */ if(tmp[0]){ for(; p[i] && FILECMP(p[i], tmp[i]); i++) ; match = !p[i] && !tmp[i]; tmp[i] = '\0'; /* longest common string */ } else{ match = 1; /* may be it!?! */ strcpy(tmp, p); } } p += strlen(p) + 1; } free(dlist); } if(match >= 0){ strncpy(fn, tmp, len); fn[len] = '\0'; if(match == 1){ if ((strlen(dir)+strlen(S_FILESEP)+strlen(fn)) < len){ strcat(dir, S_FILESEP); strcat(dir, fn); if(isdir(dir, NULL, NULL)) strcat(fn, S_FILESEP); } else{ emlwrite("檔名太大了！！",0); sleep(3); *fn = '\0'; } } } return(match == 1); } /* * in_oper_tree - returns true if file "f" does reside in opertree */ in_oper_tree(f) char *f; { int end = strlen(opertree); return(!strncmp(opertree, f, end) && (opertree[end-1] == '/' || opertree[end-1] == '\\' || f[end] == '\0' || f[end] == '/' || f[end] == '\\')); }