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- /*
- * Copyright (c) 1980 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)touch.c 5.7 (Berkeley) 2/26/91";
- #endif /* not lint */
-
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <signal.h>
- #include <unistd.h>
- #include <stdio.h>
- #include <ctype.h>
- #include <stdlib.h>
- #include <string.h>
- #include "error.h"
- #include "pathnames.h"
-
- /*
- * Iterate through errors
- */
- #define EITERATE(p, fv, i) for (p = fv[i]; p < fv[i+1]; p++)
- #define ECITERATE(ei, p, lb) for (ei = lb; p = errors[ei],ei < nerrors; ei++)
-
- #define FILEITERATE(fi, lb) for (fi = lb; fi <= nfiles; fi++)
- int touchstatus = Q_YES;
-
- findfiles(nerrors, errors, r_nfiles, r_files)
- int nerrors;
- Eptr *errors;
- int *r_nfiles;
- Eptr ***r_files;
- {
- int nfiles;
- Eptr **files;
-
- char *name;
- reg int ei;
- int fi;
- reg Eptr errorp;
-
- nfiles = countfiles(errors);
-
- files = (Eptr**)Calloc(nfiles + 3, sizeof (Eptr*));
- touchedfiles = (boolean *)Calloc(nfiles+3, sizeof(boolean));
- /*
- * Now, partition off the error messages
- * into those that are synchronization, discarded or
- * not specific to any file, and those that were
- * nulled or true errors.
- */
- files[0] = &errors[0];
- ECITERATE(ei, errorp, 0){
- if ( ! (NOTSORTABLE(errorp->error_e_class)))
- break;
- }
- /*
- * Now, and partition off all error messages
- * for a given file.
- */
- files[1] = &errors[ei];
- touchedfiles[0] = touchedfiles[1] = FALSE;
- name = "\1";
- fi = 1;
- ECITERATE(ei, errorp, ei){
- if ( (errorp->error_e_class == C_NULLED)
- || (errorp->error_e_class == C_TRUE) ){
- if (strcmp(errorp->error_text[0], name) != 0){
- name = errorp->error_text[0];
- touchedfiles[fi] = FALSE;
- files[fi] = &errors[ei];
- fi++;
- }
- }
- }
- files[fi] = &errors[nerrors];
- *r_nfiles = nfiles;
- *r_files = files;
- }
-
- int countfiles(errors)
- Eptr *errors;
- {
- char *name;
- int ei;
- reg Eptr errorp;
-
- int nfiles;
- nfiles = 0;
- name = "\1";
- ECITERATE(ei, errorp, 0){
- if (SORTABLE(errorp->error_e_class)){
- if (strcmp(errorp->error_text[0],name) != 0){
- nfiles++;
- name = errorp->error_text[0];
- }
- }
- }
- return(nfiles);
- }
- char *class_table[] = {
- /*C_UNKNOWN 0 */ "Unknown",
- /*C_IGNORE 1 */ "ignore",
- /*C_SYNC 2 */ "synchronization",
- /*C_DISCARD 3 */ "discarded",
- /*C_NONSPEC 4 */ "non specific",
- /*C_THISFILE 5 */ "specific to this file",
- /*C_NULLED 6 */ "nulled",
- /*C_TRUE 7 */ "true",
- /*C_DUPL 8 */ "duplicated"
- };
-
- int class_count[C_LAST - C_FIRST] = {0};
-
- filenames(nfiles, files)
- int nfiles;
- Eptr **files;
- {
- reg int fi;
- char *sep = " ";
- extern char *class_table[];
- int someerrors;
-
- /*
- * first, simply dump out errors that
- * don't pertain to any file
- */
- someerrors = nopertain(files);
-
- if (nfiles){
- someerrors++;
- fprintf(stdout, terse
- ? "%d file%s"
- : "%d file%s contain%s errors",
- nfiles, plural(nfiles), verbform(nfiles));
- if (!terse){
- FILEITERATE(fi, 1){
- fprintf(stdout, "%s\"%s\" (%d)",
- sep, (*files[fi])->error_text[0],
- files[fi+1] - files[fi]);
- sep = ", ";
- }
- }
- fprintf(stdout, "\n");
- }
- if (!someerrors)
- fprintf(stdout, "No errors.\n");
- }
-
- /*
- * Dump out errors that don't pertain to any file
- */
- int nopertain(files)
- Eptr **files;
- {
- int type;
- int someerrors = 0;
- reg Eptr *erpp;
- reg Eptr errorp;
-
- if (files[1] - files[0] <= 0)
- return(0);
- for(type = C_UNKNOWN; NOTSORTABLE(type); type++){
- if (class_count[type] <= 0)
- continue;
- if (type > C_SYNC)
- someerrors++;
- if (terse){
- fprintf(stdout, "\t%d %s errors NOT PRINTED\n",
- class_count[type], class_table[type]);
- } else {
- fprintf(stdout, "\n\t%d %s errors follow\n",
- class_count[type], class_table[type]);
- EITERATE(erpp, files, 0){
- errorp = *erpp;
- if (errorp->error_e_class == type){
- errorprint(stdout, errorp, TRUE);
- }
- }
- }
- }
- return(someerrors);
- }
-
- extern boolean notouch;
-
- boolean touchfiles(nfiles, files, r_edargc, r_edargv)
- int nfiles;
- Eptr **files;
- int *r_edargc;
- char ***r_edargv;
- {
- char *name;
- reg Eptr errorp;
- reg int fi;
- reg Eptr *erpp;
- int ntrueerrors;
- boolean scribbled;
- int n_pissed_on; /* # of file touched*/
- int spread;
-
- FILEITERATE(fi, 1){
- name = (*files[fi])->error_text[0];
- spread = files[fi+1] - files[fi];
- fprintf(stdout, terse
- ? "\"%s\" has %d error%s, "
- : "\nFile \"%s\" has %d error%s.\n"
- , name ,spread ,plural(spread));
- /*
- * First, iterate through all error messages in this file
- * to see how many of the error messages really will
- * get inserted into the file.
- */
- ntrueerrors = 0;
- EITERATE(erpp, files, fi){
- errorp = *erpp;
- if (errorp->error_e_class == C_TRUE)
- ntrueerrors++;
- }
- fprintf(stdout, terse
- ? "insert %d\n"
- : "\t%d of these errors can be inserted into the file.\n",
- ntrueerrors);
-
- hackfile(name, files, fi, ntrueerrors);
- }
- scribbled = FALSE;
- n_pissed_on = 0;
- FILEITERATE(fi, 1){
- scribbled |= touchedfiles[fi];
- n_pissed_on++;
- }
- if (scribbled){
- /*
- * Construct an execv argument
- */
- execvarg(n_pissed_on, r_edargc, r_edargv);
- return(TRUE);
- } else {
- if (!terse)
- fprintf(stdout, "You didn't touch any files.\n");
- return(FALSE);
- }
- }
-
- hackfile(name, files, ix, nerrors)
- char *name;
- Eptr **files;
- int ix;
- {
- boolean previewed;
- int errordest; /* where errors go*/
-
- if (!oktotouch(name)) {
- previewed = FALSE;
- errordest = TOSTDOUT;
- } else {
- previewed = preview(name, nerrors, files, ix);
- errordest = settotouch(name);
- }
-
- if (errordest != TOSTDOUT)
- touchedfiles[ix] = TRUE;
-
- if (previewed && (errordest == TOSTDOUT))
- return;
-
- diverterrors(name, errordest, files, ix, previewed, nerrors);
-
- if (errordest == TOTHEFILE){
- /*
- * overwrite the original file
- */
- writetouched(1);
- }
- }
-
- boolean preview(name, nerrors, files, ix)
- char *name;
- int nerrors;
- Eptr **files;
- int ix;
- {
- int back;
- reg Eptr *erpp;
-
- if (nerrors <= 0)
- return(FALSE);
- back = FALSE;
- if(query){
- switch(inquire(terse
- ? "Preview? "
- : "Do you want to preview the errors first? ")){
- case Q_YES:
- case Q_yes:
- back = TRUE;
- EITERATE(erpp, files, ix){
- errorprint(stdout, *erpp, TRUE);
- }
- if (!terse)
- fprintf(stdout, "\n");
- default:
- break;
- }
- }
- return(back);
- }
-
- int settotouch(name)
- char *name;
- {
- int dest = TOSTDOUT;
-
- if (query){
- switch(touchstatus = inquire(terse
- ? "Touch? "
- : "Do you want to touch file \"%s\"? ",
- name)){
- case Q_NO:
- case Q_no:
- return(dest);
- default:
- break;
- }
- }
-
- switch(probethisfile(name)){
- case F_NOTREAD:
- dest = TOSTDOUT;
- fprintf(stdout, terse
- ? "\"%s\" unreadable\n"
- : "File \"%s\" is unreadable\n",
- name);
- break;
- case F_NOTWRITE:
- dest = TOSTDOUT;
- fprintf(stdout, terse
- ? "\"%s\" unwritable\n"
- : "File \"%s\" is unwritable\n",
- name);
- break;
- case F_NOTEXIST:
- dest = TOSTDOUT;
- fprintf(stdout, terse
- ? "\"%s\" not found\n"
- : "Can't find file \"%s\" to insert error messages into.\n",
- name);
- break;
- default:
- dest = edit(name) ? TOSTDOUT : TOTHEFILE;
- break;
- }
- return(dest);
- }
-
- diverterrors(name, dest, files, ix, previewed, nterrors)
- char *name;
- int dest;
- Eptr **files;
- int ix;
- boolean previewed;
- int nterrors;
- {
- int nerrors;
- reg Eptr *erpp;
- reg Eptr errorp;
-
- nerrors = files[ix+1] - files[ix];
-
- if ( (nerrors != nterrors)
- && (!previewed) ){
- fprintf(stdout, terse
- ? "Uninserted errors\n"
- : ">>Uninserted errors for file \"%s\" follow.\n",
- name);
- }
-
- EITERATE(erpp, files, ix){
- errorp = *erpp;
- if (errorp->error_e_class != C_TRUE){
- if (previewed || touchstatus == Q_NO)
- continue;
- errorprint(stdout, errorp, TRUE);
- continue;
- }
- switch (dest){
- case TOSTDOUT:
- if (previewed || touchstatus == Q_NO)
- continue;
- errorprint(stdout,errorp, TRUE);
- break;
- case TOTHEFILE:
- insert(errorp->error_line);
- text(errorp, FALSE);
- break;
- }
- }
- }
-
- int oktotouch(filename)
- char *filename;
- {
- extern char *suffixlist;
- reg char *src;
- reg char *pat;
- char *osrc;
-
- pat = suffixlist;
- if (pat == 0)
- return(0);
- if (*pat == '*')
- return(1);
- while (*pat++ != '.')
- continue;
- --pat; /* point to the period */
-
- for (src = &filename[strlen(filename)], --src;
- (src > filename) && (*src != '.'); --src)
- continue;
- if (*src != '.')
- return(0);
-
- for (src++, pat++, osrc = src; *src && *pat; src = osrc, pat++){
- for (; *src /* not at end of the source */
- && *pat /* not off end of pattern */
- && *pat != '.' /* not off end of sub pattern */
- && *pat != '*' /* not wild card */
- && *src == *pat; /* and equal... */
- src++, pat++)
- continue;
- if (*src == 0 && (*pat == 0 || *pat == '.' || *pat == '*'))
- return(1);
- if (*src != 0 && *pat == '*')
- return(1);
- while (*pat && *pat != '.')
- pat++;
- if (! *pat)
- return(0);
- }
- return(0);
- }
- /*
- * Construct an execv argument
- * We need 1 argument for the editor's name
- * We need 1 argument for the initial search string
- * We need n_pissed_on arguments for the file names
- * We need 1 argument that is a null for execv.
- * The caller fills in the editor's name.
- * We fill in the initial search string.
- * We fill in the arguments, and the null.
- */
- execvarg(n_pissed_on, r_argc, r_argv)
- int n_pissed_on;
- int *r_argc;
- char ***r_argv;
- {
- Eptr p;
- char *sep;
- int fi;
-
- (*r_argv) = (char **)Calloc(n_pissed_on + 3, sizeof(char *));
- (*r_argc) = n_pissed_on + 2;
- (*r_argv)[1] = "+1;/###/";
- n_pissed_on = 2;
- if (!terse){
- fprintf(stdout, "You touched file(s):");
- sep = " ";
- }
- FILEITERATE(fi, 1){
- if (!touchedfiles[fi])
- continue;
- p = *(files[fi]);
- if (!terse){
- fprintf(stdout,"%s\"%s\"", sep, p->error_text[0]);
- sep = ", ";
- }
- (*r_argv)[n_pissed_on++] = p->error_text[0];
- }
- if (!terse)
- fprintf(stdout, "\n");
- (*r_argv)[n_pissed_on] = 0;
- }
-
- FILE *o_touchedfile; /* the old file */
- FILE *n_touchedfile; /* the new file */
- char *o_name;
- char n_name[64];
- char *canon_name = _PATH_TMP;
- int o_lineno;
- int n_lineno;
- boolean tempfileopen = FALSE;
- /*
- * open the file; guaranteed to be both readable and writable
- * Well, if it isn't, then return TRUE if something failed
- */
- boolean edit(name)
- char *name;
- {
- o_name = name;
- if ( (o_touchedfile = fopen(name, "r")) == NULL){
- fprintf(stderr, "%s: Can't open file \"%s\" to touch (read).\n",
- processname, name);
- return(TRUE);
- }
- (void)strcpy(n_name, canon_name);
- (void)mktemp(n_name);
- if ( (n_touchedfile = fopen(n_name, "w")) == NULL){
- fprintf(stderr,"%s: Can't open file \"%s\" to touch (write).\n",
- processname, name);
- return(TRUE);
- }
- tempfileopen = TRUE;
- n_lineno = 0;
- o_lineno = 0;
- return(FALSE);
- }
- /*
- * Position to the line (before, after) the line given by place
- */
- char edbuf[BUFSIZ];
- insert(place)
- int place;
- {
- --place; /* always insert messages before the offending line*/
- for(; o_lineno < place; o_lineno++, n_lineno++){
- if(fgets(edbuf, BUFSIZ, o_touchedfile) == NULL)
- return;
- fputs(edbuf, n_touchedfile);
- }
- }
-
- text(p, use_all)
- reg Eptr p;
- boolean use_all;
- {
- int offset = use_all ? 0 : 2;
-
- fputs(lang_table[p->error_language].lang_incomment, n_touchedfile);
- fprintf(n_touchedfile, "%d [%s] ",
- p->error_line,
- lang_table[p->error_language].lang_name);
- wordvprint(n_touchedfile, p->error_lgtext-offset, p->error_text+offset);
- fputs(lang_table[p->error_language].lang_outcomment,n_touchedfile);
- n_lineno++;
- }
-
- /*
- * write the touched file to its temporary copy,
- * then bring the temporary in over the local file
- */
- writetouched(overwrite)
- int overwrite;
- {
- reg int nread;
- reg FILE *localfile;
- reg FILE *tmpfile;
- int botch;
- int oktorm;
-
- botch = 0;
- oktorm = 1;
- while((nread = fread(edbuf, 1, sizeof(edbuf), o_touchedfile)) != NULL){
- if (nread != fwrite(edbuf, 1, nread, n_touchedfile)){
- /*
- * Catastrophe in temporary area: file system full?
- */
- botch = 1;
- fprintf(stderr,
- "%s: write failure: No errors inserted in \"%s\"\n",
- processname, o_name);
- }
- }
- fclose(n_touchedfile);
- fclose(o_touchedfile);
- /*
- * Now, copy the temp file back over the original
- * file, thus preserving links, etc
- */
- if (botch == 0 && overwrite){
- botch = 0;
- localfile = NULL;
- tmpfile = NULL;
- if ((localfile = fopen(o_name, "w")) == NULL){
- fprintf(stderr,
- "%s: Can't open file \"%s\" to overwrite.\n",
- processname, o_name);
- botch++;
- }
- if ((tmpfile = fopen(n_name, "r")) == NULL){
- fprintf(stderr, "%s: Can't open file \"%s\" to read.\n",
- processname, n_name);
- botch++;
- }
- if (!botch)
- oktorm = mustoverwrite(localfile, tmpfile);
- if (localfile != NULL)
- fclose(localfile);
- if (tmpfile != NULL)
- fclose(tmpfile);
- }
- if (oktorm == 0){
- fprintf(stderr, "%s: Catastrophe: A copy of \"%s\": was saved in \"%s\"\n",
- processname, o_name, n_name);
- exit(1);
- }
- /*
- * Kiss the temp file good bye
- */
- unlink(n_name);
- tempfileopen = FALSE;
- return(TRUE);
- }
- /*
- * return 1 if the tmpfile can be removed after writing it out
- */
- int mustoverwrite(preciousfile, tmpfile)
- FILE *preciousfile;
- FILE *tmpfile;
- {
- int nread;
-
- while((nread = fread(edbuf, 1, sizeof(edbuf), tmpfile)) != NULL){
- if (mustwrite(edbuf, nread, preciousfile) == 0)
- return(0);
- }
- return(1);
- }
- /*
- * return 0 on catastrophe
- */
- mustwrite(base, n, preciousfile)
- char *base;
- int n;
- FILE *preciousfile;
- {
- int nwrote;
-
- if (n <= 0)
- return(1);
- nwrote = fwrite(base, 1, n, preciousfile);
- if (nwrote == n)
- return(1);
- perror(processname);
- switch(inquire(terse
- ? "Botch overwriting: retry? "
- : "Botch overwriting the source file: retry? ")){
- case Q_YES:
- case Q_yes:
- mustwrite(base + nwrote, n - nwrote, preciousfile);
- return(1);
- case Q_NO:
- case Q_no:
- switch(inquire("Are you sure? ")){
- case Q_YES:
- case Q_yes:
- return(0);
- case Q_NO:
- case Q_no:
- mustwrite(base + nwrote, n - nwrote, preciousfile);
- return(1);
- }
- default:
- return(0);
- }
- }
-
- void
- onintr()
- {
- switch(inquire(terse
- ? "\nContinue? "
- : "\nInterrupt: Do you want to continue? ")){
- case Q_YES:
- case Q_yes:
- signal(SIGINT, onintr);
- return;
- default:
- if (tempfileopen){
- /*
- * Don't overwrite the original file!
- */
- writetouched(0);
- }
- exit(1);
- }
- /*NOTREACHED*/
- }
-
- errorprint(place, errorp, print_all)
- FILE *place;
- Eptr errorp;
- boolean print_all;
- {
- int offset = print_all ? 0 : 2;
-
- if (errorp->error_e_class == C_IGNORE)
- return;
- fprintf(place, "[%s] ", lang_table[errorp->error_language].lang_name);
- wordvprint(place,errorp->error_lgtext-offset,errorp->error_text+offset);
- putc('\n', place);
- }
-
- int inquire(fmt, a1, a2)
- char *fmt;
- /*VARARGS1*/
- {
- char buffer[128];
-
- if (queryfile == NULL)
- return(0);
- for(;;){
- do{
- fflush(stdout);
- fprintf(stderr, fmt, a1, a2);
- fflush(stderr);
- } while (fgets(buffer, 127, queryfile) == NULL);
- switch(buffer[0]){
- case 'Y': return(Q_YES);
- case 'y': return(Q_yes);
- case 'N': return(Q_NO);
- case 'n': return(Q_no);
- default: fprintf(stderr, "Yes or No only!\n");
- }
- }
- }
-
- int probethisfile(name)
- char *name;
- {
- struct stat statbuf;
- if (stat(name, &statbuf) < 0)
- return(F_NOTEXIST);
- if((statbuf.st_mode & S_IREAD) == 0)
- return(F_NOTREAD);
- if((statbuf.st_mode & S_IWRITE) == 0)
- return(F_NOTWRITE);
- return(F_TOUCHIT);
- }
-