480 lines
9.4 KiB
C
480 lines
9.4 KiB
C
/*
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Copyright (c) 1990-2001 Info-ZIP. All rights reserved.
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See the accompanying file LICENSE, version 2000-Apr-09 or later
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(the contents of which are also included in zip.h) for terms of use.
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If, for some reason, all these files are missing, the Info-ZIP license
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also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
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*/
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/*---------------------------------------------------------------------------
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helpers.c
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Some useful functions Used by unzip and zip.
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---------------------------------------------------------------------------*/
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/*****************************************************************************/
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/* Includes */
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/*****************************************************************************/
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#include "zip.h"
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#include <ctype.h>
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#include <time.h>
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#include <sound.h>
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#include "macstuff.h"
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#include "helpers.h"
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#include "pathname.h"
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/*****************************************************************************/
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/* Global Vars */
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/*****************************************************************************/
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extern int noisy;
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extern char MacPathEnd;
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extern char *zipfile; /* filename of the Zipfile */
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extern char *tempzip; /* Temporary zip file name */
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extern ZCONST unsigned char MacRoman_to_WinCP1252[128];
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static char argStr[1024];
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static char *argv[MAX_ARGS + 1];
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/*****************************************************************************/
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/* Functions */
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/*****************************************************************************/
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/*
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** Copy a C string to a Pascal string
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**
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*/
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unsigned char *CToPCpy(unsigned char *pstr, char *cstr)
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{
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register char *dptr;
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register unsigned len;
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len=0;
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dptr=(char *)pstr+1;
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while (len<255 && (*dptr++ = *cstr++)!='\0') ++len;
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*pstr= (unsigned char)len;
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return pstr;
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}
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/*
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** Copy a Pascal string to a C string
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**
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*/
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char *PToCCpy(unsigned char *pstr, char *cstr)
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{
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strncpy(cstr, (char *) &pstr[1], *pstr);
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cstr[pstr[0]] = '\0'; /* set endmarker for c-string */
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return cstr;
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}
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/*
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** strcpy() and strcat() work-alikes which allow overlapping buffers.
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*/
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char *sstrcpy(char *to,const char *from)
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{
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memmove(to, from, 1+strlen(from));
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return to;
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}
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char *sstrcat(char *to,const char *from)
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{
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sstrcpy(to + strlen(to), from);
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return to;
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}
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/*
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** Alloc memory and init it
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**
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*/
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char *StrCalloc(unsigned short size)
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{
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char *strPtr = NULL;
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if ((strPtr = calloc(size, sizeof(char))) == NULL)
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printerr("StrCalloc failed:", -1, size, __LINE__, __FILE__, "");
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Assert_it(strPtr,"strPtr == NULL","")
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return strPtr;
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}
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/*
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** Release only non NULL pointers
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**
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*/
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char *StrFree(char *strPtr)
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{
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if (strPtr != NULL)
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{
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free(strPtr);
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}
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return NULL;
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}
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/*
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** Return a value in a binary string
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**
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*/
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char *sBit2Str(unsigned short value)
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{
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static char str[sizeof(value)*8];
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int biz = 16;
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int strwid = 16;
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int i, j;
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char *tempPtr = str;
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j = strwid - (biz + (biz >> 2)- (biz % 4 ? 0 : 1));
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for (i = 0; i < j; i++) {
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*tempPtr++ = ' ';
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}
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while (--biz >= 0)
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{
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*tempPtr++ = ((value >> biz) & 1) + '0';
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if (!(biz % 4) && biz) {
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*tempPtr++ = ' ';
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}
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}
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*tempPtr = '\0';
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return str;
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}
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/*
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** Parse commandline style arguments
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**
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*/
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int ParseArguments(char *s, char ***arg)
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{
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int n = 1, Quote = 0;
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char *p = s, *p1, c;
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argv[0] = GetAppName();
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*arg = argv;
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p1 = (char *) argStr;
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while ((c = *p++) != 0) {
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if (c==' ') continue;
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argv[n++] = p1;
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if (n > MAX_ARGS)
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return (n-1);
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do {
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if (c=='\\' && *p++)
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c = *p++;
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else
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if ((c=='"') || (c == '\'')) {
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if (!Quote) {
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Quote = c;
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continue;
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}
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if (c == Quote) {
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Quote = 0;
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continue;
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}
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}
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*p1++ = c;
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} while (*p && ((c = *p++) != ' ' || Quote));
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*p1++ = '\0';
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}
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return n;
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}
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/*
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** Print commandline style arguments
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**
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*/
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void PrintArguments(int argc, char **argv)
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{
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printf("\n Arguments:");
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printf("\n --------------------------");
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while(--argc >= 0)
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printf("\n argc: %d argv: [%s]", argc, &*argv[argc]);
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printf("\n --------------------------\n\n");
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return;
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}
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/*
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** return some error-msg on file-system
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**
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*/
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int PrintUserHFSerr(int cond, int err, char *msg2)
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{
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char *msg;
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if (cond != 0)
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{
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switch (err)
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{
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case -35:
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msg = "No such Volume";
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break;
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case -56:
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msg = "No such Drive";
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break;
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case -37:
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msg = "Bad Volume Name";
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break;
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case -49:
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msg = "File is already open for writing";
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break;
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case -43:
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msg = "Directory/File not found";
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break;
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case -120:
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msg = "Directory/File not found or incomplete pathname";
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break;
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default: return err;
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}
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fprintf(stderr, "\n\n Error: %s ->%s", msg, msg2);
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exit(err);
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}
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return 0;
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}
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/*
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** Check mounted volumes and return number of volumes
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** with the same name.
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*/
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short CheckMountedVolumes(char *FullPath)
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{
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FSSpec volumes[50]; /* 50 Volumes should be enough */
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char VolumeName[257], volume[257];
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short actVolCount, volIndex = 1, VolCount = 0;
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OSErr err;
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int i;
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GetVolumeFromPath(FullPath, VolumeName);
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err = OnLine(volumes, 50, &actVolCount, &volIndex);
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printerr("OnLine:", (err != -35) && (err != 0), err, __LINE__, __FILE__, "");
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for (i=0; i < actVolCount; i++)
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{
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PToCCpy(volumes[i].name,volume);
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if (stricmp(volume, VolumeName) == 0) VolCount++;
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}
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printerr("OnLine: ", (VolCount == 0), VolCount, __LINE__, __FILE__, FullPath);
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return VolCount;
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}
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/*
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** compares strings, ignoring differences in case
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**
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*/
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int stricmp(const char *p1, const char *p2)
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{
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int diff;
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while (*p1 && *p2)
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{
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if (*p1 != *p2)
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{
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if (isalpha(*p1) && isalpha(*p2))
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{
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diff = toupper(*p1) - toupper(*p2);
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if (diff) return diff;
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}
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else break;
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}
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p1++;
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p2++;
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}
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return *p1 - *p2;
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}
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/*
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** Convert the MacOS-Strings (Filenames/Findercomments) to a most compatible.
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** These strings will be stored in the public area of the zip-archive.
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** Every foreign platform (outside macos) will access these strings
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** for extraction.
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*/
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void MakeCompatibleString(char *MacOS_Str,
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const char SpcChar1, const char SpcChar2,
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const char SpcChar3, const char SpcChar4,
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short CurrTextEncodingBase)
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{
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char *tmpPtr;
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register uch curch;
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Assert_it(MacOS_Str,"MakeCompatibleString MacOS_Str == NULL","")
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for (tmpPtr = MacOS_Str; (curch = *tmpPtr) != '\0'; tmpPtr++)
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{
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if (curch == SpcChar1)
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*tmpPtr = SpcChar2;
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else
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if (curch == SpcChar3)
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*tmpPtr = SpcChar4;
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else /* default */
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/* now convert from MacRoman to ISO-8859-1 */
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/* but convert only if MacRoman is activ */
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if ((CurrTextEncodingBase == kTextEncodingMacRoman) &&
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(curch > 127))
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{
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*tmpPtr = (char)MacRoman_to_WinCP1252[curch - 128];
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}
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} /* end for */
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}
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Boolean CheckForSwitch(char *Switch, int argc, char **argv)
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{
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char *p; /* steps through option arguments */
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int i; /* arg counter, root directory flag */
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for (i = 1; i < argc; i++)
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{
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if (argv[i][0] == '-')
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{
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if (argv[i][1])
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{
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for (p = argv[i]+1; *p; p++)
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{
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if (*p == Switch[0])
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{
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return true;
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}
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if ((Switch[1] != NULL) &&
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((*p == Switch[0]) && (*p == Switch[1])))
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{
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return true;
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}
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}
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}
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}
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}
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return false;
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}
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#if (defined(USE_SIOUX) || defined(MACUNZIP_STANDALONE))
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/*
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** checks the condition and returns an error-msg
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** this function is for internal use only
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*/
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OSErr printerr(const char *msg, int cond, int err, int line, char *file,
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const char *msg2)
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{
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if (cond != 0)
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{
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fprintf(stderr, "\nint err: %d: %s %d [%d/%s] {%s}\n", clock(), msg, err,
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line, file, msg2);
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}
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return cond;
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}
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/*
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fake-functions:
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Not Implemented for metrowerks SIOUX
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*/
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void leftStatusString(char *status)
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{
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status = status;
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}
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void rightStatusString(char *status)
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{
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status = status;
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}
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void DoWarnUserDupVol( char *FullPath )
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{
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char VolName[257];
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GetVolumeFromPath(FullPath, VolName);
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printf("\n There are more than one volume that has the same name !!\n");
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printf("\n Volume: %s\n",VolName);
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printf("\n This port has one weak point:");
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printf("\n It is based on pathnames. As you may be already know:");
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printf("\n Pathnames are not unique on a Mac !");
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printf("\n MacZip has problems to find the correct location of");
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printf("\n the archive or the files.\n");
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printf("\n My (Big) recommendation: Name all your volumes with an");
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printf("\n unique name and MacZip will run without any problem.");
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}
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#endif
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