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bvi-1.4.0.src.tar.gz
This commit is contained in:
Gerhard Bürgmann
parent
12a0ed970c
commit
be3c9f064d
73 changed files with 7541 additions and 9733 deletions
107
io.c
107
io.c
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@ -8,10 +8,12 @@
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* 2000-03-23 V 1.3.0 beta
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* 2000-08-17 V 1.3.0 final
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* 2004-01-04 V 1.3.2
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* 2010-06-02 V 1.3.4
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* 2014-05-03 V 1.4.0
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*
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* NOTE: Edit this file with tabstop=4 !
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*
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* Copyright 1996-2004 by Gerhard Buergmann
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* Copyright 1996-2014 by Gerhard Buergmann
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* gerhard@puon.at
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*
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* This program is free software; you can redistribute it and/or modify it
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@ -30,11 +32,20 @@
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#include "bvi.h"
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#include "set.h"
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#include <limits.h>
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#ifndef SIZE_T_MAX
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# define SIZE_T_MAX ULONG_MAX
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#if 0
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/* nowadays (2009) we should make sure that bvi is compiled with LFS support: */
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/* defines _LARGEFILE_SOURCE _FILE_OFFSET_BITS=64 */
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/* if compiled without LFS support, stat() open() lseek() will fail with */
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/* EOVERFLOW(75) Value too large for defined data type */
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/* see README for configure arguments to enable lfs support in 32-bit executables */
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/* cygwin enables lfs by default */
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#endif
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#include <limits.h>
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# ifndef OFF_T_MAX
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# define OFF_T_MAX ULONG_LONG_MAX
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# endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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@ -58,7 +69,7 @@ save(fname, start, end, flags)
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int flags;
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{
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int fd;
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char string[255];
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char *string;
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char *newstr;
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off_t filesize;
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@ -66,16 +77,23 @@ save(fname, start, end, flags)
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emsg("No file|No current filename");
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return 0;
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}
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string = malloc((size_t)strlen(fname) + MAXCMD);
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if (string == NULL) {
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emsg("Out of memory");
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return 0;
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}
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if (stat(fname, &buf) == -1) {
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newstr = "[New file] ";
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} else {
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if (S_ISDIR(buf.st_mode)) {
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sprintf(string, "\"%s\" Is a directory", fname);
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msg(string);
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free(string);
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return 0;
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} else if (S_ISCHR(buf.st_mode)) {
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sprintf(string, "\"%s\" Character special file", fname);
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msg(string);
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free(string);
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return 0;
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} else if (S_ISBLK(buf.st_mode)) {
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/*
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@ -90,36 +108,42 @@ save(fname, start, end, flags)
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if (filemode == PARTIAL) flags = O_RDWR;
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if ((fd = open(fname, flags, 0666)) < 0) {
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sysemsg(fname);
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free(string);
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return 0;
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}
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if (filemode == PARTIAL) {
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if (block_read) {
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filesize = block_read;
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sprintf(string, "\"%s\" range %lu-%lu", fname,
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(unsigned long)block_begin,
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(unsigned long)(block_begin - 1 + filesize));
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sprintf(string, "\"%s\" range %llu-%llu", fname,
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(unsigned long long)block_begin,
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(unsigned long long)(block_begin - 1 + filesize));
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if (lseek(fd, block_begin, SEEK_SET) < 0) {
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sysemsg(fname);
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free(string);
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return 0;
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}
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} else {
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msg("Null range");
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free(string);
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return 0;
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}
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} else {
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filesize = end - start + 1L;
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sprintf(string, "\"%s\" %s%lu bytes", fname, newstr,
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(unsigned long)filesize);
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sprintf(string, "\"%s\" %s%llu bytes", fname, newstr,
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(unsigned long long)filesize);
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}
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if (write(fd, start, filesize) != filesize) {
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sysemsg(fname);
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free(string);
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close(fd);
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return 0;
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}
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close(fd);
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edits = 0;
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msg(string);
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free(string);
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return 1;
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}
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@ -130,17 +154,31 @@ load(fname)
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char *fname;
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{
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int fd = -1;
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char string[MAXCMD];
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char *string;
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buf.st_size = 0L;
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if (fname != NULL) {
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/*
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sprintf(string, "\"%s\"", fname);
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msg(string);
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refresh();
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*/
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if (stat(fname, &buf) == -1) {
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filemode = NEW;
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/* check for EOVERFLOW 75 */
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/* Value too large for defined data type */
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/* means bvi is compiled without lfs support */
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if (errno == ENOENT) {
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filemode = NEW;
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} else {
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move(maxy, 0);
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endwin();
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perror(fname);
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exit(0);
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}
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/*
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} else if (S_ISDIR(buf.st_mode)) {
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filemode = DIRECTORY;
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*/
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} else if (S_ISCHR(buf.st_mode)) {
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filemode = CHARACTER_SPECIAL;
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} else if (S_ISBLK(buf.st_mode)) {
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@ -158,15 +196,23 @@ load(fname)
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sysemsg(fname);
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filemode = ERROR;
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}
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} else if (S_ISREG(buf.st_mode)) {
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if ((unsigned long)buf.st_size > (unsigned long)SIZE_T_MAX) {
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} else if (S_ISREG(buf.st_mode) || S_ISDIR(buf.st_mode)) {
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#if 0
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/* stat() call above will fail if file is too large */
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/* this size check will never fail */
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if ((unsigned long long)buf.st_size > (unsigned long long)OFF_T_MAX) {
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move(maxy, 0);
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endwin();
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printf("File too large\n");
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exit(0);
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}
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#endif
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if ((fd = open(fname, O_RDONLY)) > 0) {
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filemode = REGULAR;
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if (S_ISREG(buf.st_mode)) {
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filemode = REGULAR;
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} else {
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filemode = DIRECTORY;
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}
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if (access(fname, W_OK)) {
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P(P_RO) = TRUE;
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params[P_RO].flags |= P_CHANGED;
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@ -182,6 +228,9 @@ load(fname)
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if (mem != NULL) free(mem);
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memsize = 1024;
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if (block_flag) {
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if (block_flag == BLOCK_BEGIN) {
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block_size = buf.st_size - block_begin;
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}
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memsize += block_size;
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} else if (filemode == REGULAR) {
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memsize += buf.st_size;
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@ -194,6 +243,15 @@ load(fname)
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}
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clear_marks();
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if (fname != NULL) {
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string = malloc((size_t)strlen(fname) + MAXCMD);
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} else {
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string = malloc(MAXCMD);
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}
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if (string == NULL) {
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emsg("Out of memory");
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return 0;
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}
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if (block_flag && ((filemode == REGULAR) || (filemode == BLOCK_SPECIAL))) {
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if (lseek(fd, block_begin, SEEK_SET) < 0) {
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@ -204,9 +262,9 @@ load(fname)
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sprintf(string, "\"%s\" Empty file", fname);
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filemode = ERROR;
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} else {
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sprintf(string, "\"%s\" range %lu-%lu", fname,
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(unsigned long)block_begin,
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(unsigned long)(block_begin + filesize - 1));
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sprintf(string, "\"%s\" range %llu-%llu", fname,
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(unsigned long long)block_begin,
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(unsigned long long)(block_begin + filesize - 1));
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filemode = PARTIAL;
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block_read = filesize;
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P(P_OF) = block_begin;
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@ -215,7 +273,7 @@ load(fname)
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msg(string);
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refresh();
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}
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} else if (filemode == REGULAR) {
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} else if ((filemode == REGULAR) || (filemode == DIRECTORY)) {
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filesize = buf.st_size;
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if (read(fd, mem, filesize) != filesize) {
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sysemsg(fname);
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@ -231,9 +289,9 @@ load(fname)
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sprintf(string, "\"%s\" [New File]", fname);
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break;
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case REGULAR:
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sprintf(string, "\"%s\" %s%lu bytes", fname,
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sprintf(string, "\"%s\" %s%llu bytes", fname,
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P(P_RO) ? "[Read only] " : "",
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(unsigned long)filesize);
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(unsigned long long)filesize);
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break;
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case DIRECTORY:
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sprintf(string, "\"%s\" Directory", fname);
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@ -252,6 +310,7 @@ load(fname)
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loc = HEX;
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x = AnzAdd; y = 0;
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repaint();
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free(string);
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return(filesize);
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}
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@ -336,12 +395,14 @@ enlarge(add)
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void
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do_shell()
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{
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int ret;
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addch('\n');
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savetty();
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#ifdef DJGPP
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system("");
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ret = system("");
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#else
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system(shell);
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ret = system(shell);
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#endif
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resetty();
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}
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