rainlance
/
unzip
mirror of https://frontier.innolan.net/rainlance/unzip.git
1
0
Fork 0
Code Releases Activity
unzip/cmsmvs/vmmvs.c

684 lines
19 KiB
C
Raw Permalink Blame History

/*
Copyright (c) 1990-2005 Info-ZIP. All rights reserved.
See the accompanying file LICENSE, version 2000-Apr-09 or later
(the contents of which are also included in unzip.h) for terms of use.
If, for some reason, all these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
*/
/*---------------------------------------------------------------------------
vmmvs.c (for both VM/CMS and MVS)
Contains: vmmvs_open_infile()
open_outfile()
close_outfile()
close_infile()
getVMMVSexfield()
do_wild()
mapattr()
mapname()
checkdir()
check_for_newer()
stat()
version()
---------------------------------------------------------------------------*/
#define __VMMVS_C /* identifies this source module */
#define UNZIP_INTERNAL
#include "unzip.h"
/********************************/
/* Function vmmvs_open_infile() */
/********************************/
FILE *vmmvs_open_infile(__G)
__GDEF
{
FILE *fzip;
G.tempfn = NULL;
fzip = fopen(G.zipfn, FOPR);
#if 0
/* Let's try it without the convert for a while -- RG Hartwig */
if ((fzip = fopen(G.zipfn,"rb,recfm=fb")) == NULL) {
size_t cnt;
char *buf;
FILE *in, *out;
if ((buf = (char *)malloc(32768)) == NULL) return NULL;
if ((G.tempfn = tmpnam(NULL)) == NULL) return NULL;
if ((in = fopen(G.zipfn,"rb")) != NULL &&
(out = fopen(G.tempfn,"wb,recfm=fb,lrecl=1")) != NULL) {
Trace((stdout,"Converting ZIP file to fixed record format...\n"));
while (!feof(in)) {
cnt = fread(buf,1,32768,in);
if (cnt) fwrite(buf,1,cnt,out);
}
}
else {
free(buf);
fclose(out);
fclose(in);
return NULL;
}
free(buf);
fclose(out);
fclose(in);
fzip = fopen(G.tempfn,"rb,recfm=fb");
if (fzip == NULL) return NULL;
/* Update the G.ziplen value since it might have changed after
the reformatting copy. */
fseek(fzip,0L,SEEK_SET);
fseek(fzip,0L,SEEK_END);
G.ziplen = ftell(fzip);
}
#endif
return fzip;
}
/***************************/
/* Function open_outfile() */
/***************************/
int open_outfile(__G) /* return 1 if fail */
__GDEF
{
char type[100];
char *mode = NULL;
#ifdef MVS
/* Check if the output file already exists and do not overwrite its DCB */
char basefilename[PATH_MAX], *p;
FILE *exists;
/* Get the base file name, without any member name */
strcpy(basefilename, G.filename);
if ((p = strchr(basefilename, '(')) != NULL) {
if (basefilename[0] == '\'')
*p++ = '\'';
*p = '\0';
}
exists = fopen(basefilename, FOPR);
if (exists) {
if (G.pInfo->textmode)
mode = FOPWTE; /* Text file, existing */
else
mode = FOPWE; /* Binary file, existing */
fclose(exists);
}
else /* continued on next line */
#endif /* MVS */
if (G.pInfo->textmode) {
if (mode == NULL)
mode = FOPWT;
} else if (G.lrec.extra_field_length > 0 && G.extra_field != NULL) {
unsigned lef_len = (unsigned)(G.lrec.extra_field_length);
uch *lef_buf = G.extra_field;
while (lef_len > EB_HEADSIZE) {
unsigned eb_id = makeword(&lef_buf[EB_ID]);
unsigned eb_dlen = makeword(&lef_buf[EB_LEN]);
if (eb_dlen > (lef_len - EB_HEADSIZE)) {
/* Discovered some extra field inconsistency! */
TTrace((stderr,
"open_outfile: block length %u > rest lef_size %u\n",
eb_dlen, lef_len - EB_HEADSIZE));
break;
}
if ((eb_id == EF_VMCMS || eb_id == EF_MVS) &&
(getVMMVSexfield(type, lef_buf, eb_dlen) > 0)) {
mode = type;
break;
}
/* Skip this extra field block */
lef_buf += (eb_dlen + EB_HEADSIZE);
lef_len -= (eb_dlen + EB_HEADSIZE);
}
}
if (mode == NULL) mode = FOPW;
Trace((stderr, "Output file='%s' opening with '%s'\n", G.filename, mode));
if ((G.outfile = fopen(G.filename, mode)) == NULL) {
Info(slide, 0x401, ((char *)slide, "\nerror: cannot create %s\n",
FnFilter1(G.filename)));
Trace((stderr, "error %d: '%s'\n", errno, strerror(errno)));
return 1;
}
return 0;
} /* end function open_outfile() */
/****************************/
/* Function close_outfile() */
/****************************/
void close_outfile(__G)
__GDEF
{
fclose(G.outfile);
} /* end function close_outfile() */
/***************************/
/* Function close_infile() */
/***************************/
void close_infile(__G)
__GDEF
{
fclose(G.zipfd);
/* If we're working from a temp file, erase it now */
if (G.tempfn)
remove(G.tempfn);
} /* end function close_infile() */
/******************************/
/* Function getVMMVSexfield() */
/******************************/
extent getVMMVSexfield(type, ef_block, datalen)
char *type;
uch *ef_block;
unsigned datalen;
{
fldata_t *fdata = (fldata_t *) &ef_block[4];
if (datalen < sizeof(fldata_t))
return 0;
strcpy(type, "w");
strcat(type, fdata->__openmode == __TEXT ? ""
:fdata->__openmode == __BINARY ? "b"
:fdata->__openmode == __RECORD ? "b,type=record"
: "");
strcat(type, ",recfm=");
strcat(type, fdata->__recfmF? "F"
:fdata->__recfmV? "V"
:fdata->__recfmU? "U"
: "?");
if (fdata->__recfmBlk) strcat(type, "B");
if (fdata->__recfmS) strcat(type, "S");
if (fdata->__recfmASA) strcat(type, "A");
if (fdata->__recfmM) strcat(type, "M");
sprintf(type+strlen(type), ",lrecl=%ld", fdata->__recfmV
? fdata->__maxreclen+4
: fdata->__maxreclen);
#ifdef VM_CMS
/* For CMS, use blocksize for FB files only */
if (fdata->__recfmBlk)
sprintf(type+strlen(type), ",blksize=%ld", fdata->__blksize);
#else
/* For MVS, always use blocksize */
sprintf(type+strlen(type), ",blksize=%ld", fdata->__blksize);
#endif
return strlen(type);
} /* end function getVMMVSexfield() */
#ifndef SFX
/**********************/
/* Function do_wild() */ /* for porting: dir separator; match(ignore_case) */
/**********************/
char *do_wild(__G__ wld)
__GDEF
ZCONST char *wld; /* only used first time on a given dir */
{
static int First = 0;
static char filename[256];
if (First == 0) {
First = 1;
strncpy(filename, wld, sizeof(filename));
filename[sizeof(filename)-1] = '\0';
return filename;
}
else
return (char *)NULL;
} /* end function do_wild() */
#endif /* !SFX */
/************************/
/* Function mapattr() */
/************************/
int mapattr(__G)
__GDEF
{
return 0;
}
/************************/
/* Function mapname() */
/************************/
int mapname(__G__ renamed)
__GDEF
int renamed;
/*
* returns:
* MPN_OK - no problem detected
* MPN_INF_TRUNC - caution (truncated filename)
* MPN_INF_SKIP - info "skip entry" (dir doesn't exist)
* MPN_ERR_SKIP - error -> skip entry
* MPN_ERR_TOOLONG - error -> path is too long
* MPN_NOMEM - error (memory allocation failed) -> skip entry
* [also MPN_VOL_LABEL, MPN_CREATED_DIR]
*/
{
char newname[FILNAMSIZ], *lbar;
#ifdef MVS
char *pmember;
#endif
int name_changed = MPN_OK;
if (G.pInfo->vollabel)
return MPN_VOL_LABEL; /* can't set disk volume labels in CMS_MVS */
#ifdef MVS
/* Remove bad characters for MVS from the filename */
while ((lbar = strpbrk(G.filename, "_+-")) != NULL) {
/* Must use memmove() here because data overlaps. */
/* strcpy() gives undefined behavior in this case. */
memmove(lbar, lbar+1, strlen(lbar));
name_changed = MPN_INF_TRUNC;
}
#endif
/* Remove bad characters for MVS/CMS from the filename */
while ((lbar = strpbrk(G.filename, "()")) != NULL) {
memmove(lbar, lbar+1, strlen(lbar));
name_changed = MPN_INF_TRUNC;
}
#ifdef VM_CMS
if ((lbar = strrchr(G.filename, '/')) != NULL) {
strcpy(newname, lbar+1);
Trace((stderr, "File '%s' renamed to '%s'\n", G.filename, newname));
strcpy(G.filename, newname);
name_changed = MPN_INF_TRUNC;
}
#else /* MVS */
if ((pmember = strrchr(G.filename, '/')) == NULL)
pmember = G.filename;
else
pmember++;
/* search for extension in file name */
if ((lbar = strrchr(pmember, '.')) != NULL) {
*lbar++ = '\0';
strcpy(newname, pmember);
strcpy(pmember, lbar);
strcat(pmember, "(");
strcat(pmember, newname);
strcat(pmember, ")");
}
/* Remove all 'internal' dots '.', to prevent false consideration as
* MVS path delimiters! */
while ((lbar = strrchr(G.filename, '.')) != NULL) {
memmove(lbar, lbar+1, strlen(lbar));
name_changed = MPN_INF_TRUNC;
}
/* Finally, convert path delimiters from internal '/' to external '.' */
while ((lbar = strchr(G.filename, '/')) != NULL)
*lbar = '.';
#endif /* ?VM_CMS */
#ifndef MVS
if ((lbar = strchr(G.filename, '.')) == NULL) {
printf("WARNING: file '%s' has no extension - renamed to '%s.NONAME'\n"\
,G.filename, G.filename);
strcat(G.filename, ".NONAME");
name_changed = MPN_INF_TRUNC;
}
#endif
checkdir(__G__ G.filename, GETPATH);
return name_changed;
} /* end function mapname() */
int checkdir(__G__ pathcomp, flag)
__GDEF
char *pathcomp;
int flag;
/*
* returns:
* MPN_OK - no problem detected
* MPN_INF_TRUNC - (on APPEND_NAME) truncated filename
* MPN_INF_SKIP - path doesn't exist, not allowed to create
* MPN_ERR_SKIP - path doesn't exist, tried to create and failed; or path
* exists and is not a directory, but is supposed to be
* MPN_ERR_TOOLONG - path is too long
* MPN_NOMEM - can't allocate memory for filename buffers
*/
{
static int rootlen = 0; /* length of rootpath */
static char *rootpath; /* user's "extract-to" directory */
# define FN_MASK 7
# define FUNCTION (flag & FN_MASK)
/*---------------------------------------------------------------------------
ROOT: if appropriate, store the path in rootpath and create it if neces-
sary; else assume it's a zipfile member and return. This path segment
gets used in extracting all members from every zipfile specified on the
command line. Note that under OS/2 and MS-DOS, if a candidate extract-to
directory specification includes a drive letter (leading "x:"), it is
treated just as if it had a trailing '/'--that is, one directory level
will be created if the path doesn't exist, unless this is otherwise pro-
hibited (e.g., freshening).
---------------------------------------------------------------------------*/
#if (!defined(SFX) || defined(SFX_EXDIR))
if (FUNCTION == ROOT) {
Trace((stderr, "initializing root path to [%s]\n",
FnFilter1(pathcomp)));
if (pathcomp == (char *)NULL) {
rootlen = 0;
}
else if ((rootlen = strlen(pathcomp)) > 0) {
if ((rootpath = (char *)malloc(rootlen+1)) == NULL) {
rootlen = 0;
return MPN_NOMEM;
}
strcpy(rootpath, pathcomp);
Trace((stderr, "rootpath now = [%s]\n", rootpath));
}
return MPN_OK;
}
#endif /* !SFX || SFX_EXDIR */
/*---------------------------------------------------------------------------
GETPATH: copy full path to the string pointed at by pathcomp, and free
buildpath.
---------------------------------------------------------------------------*/
if (FUNCTION == GETPATH) {
if (rootlen > 0) {
#ifdef VM_CMS /* put the exdir after the filename */
strcat(pathcomp, "."); /* used as minidisk to be save on */
strcat(pathcomp, rootpath);
#else /* MVS */
char newfilename[PATH_MAX];
char *start_fname;
int quoted = 0;
strcpy(newfilename, rootpath);
if (newfilename[0] == '\'') {
quoted = strlen(newfilename) - 1;
if (newfilename[quoted] == '\'')
newfilename[quoted] = '\0';
else
quoted = 0;
}
if (strchr(pathcomp, '(') == NULL) {
if ((start_fname = strrchr(pathcomp, '.')) == NULL) {
start_fname = pathcomp;
}
else {
*start_fname++ = '\0';
strcat(newfilename, ".");
strcat(newfilename, pathcomp);
}
strcat(newfilename, "(");
strcat(newfilename, start_fname);
strcat(newfilename, ")");
}
else {
strcat(newfilename, ".");
strcat(newfilename, pathcomp);
}
if (quoted)
strcat(newfilename, "'");
Trace((stdout, "new dataset : %s\n", newfilename));
strcpy(pathcomp, newfilename);
#endif /* ?VM_CMS */
}
return MPN_OK;
}
/*---------------------------------------------------------------------------
END: free rootpath, immediately prior to program exit.
---------------------------------------------------------------------------*/
if (FUNCTION == END) {
Trace((stderr, "freeing rootpath\n"));
if (rootlen > 0) {
free(rootpath);
rootlen = 0;
}
return MPN_OK;
}
return MPN_INVALID; /* should never reach */
} /* end function checkdir() */
/******************************/
/* Function check_for_newer() */ /* used for overwriting/freshening/updating */
/******************************/
int check_for_newer(__G__ filename) /* return 1 if existing file is newer */
__GDEF /* or equal; 0 if older; -1 if doesn't */
char *filename; /* exist yet */
{
FILE *stream;
if ((stream = fopen(filename, FOPR)) != NULL) {
fclose(stream);
/* File exists, assume it is "newer" than archive entry. */
return EXISTS_AND_NEWER;
}
/* File does not exist. */
return DOES_NOT_EXIST;
} /* end function check_for_newer() */
/*********************/
/* Function stat() */
/*********************/
int stat(const char *path, struct stat *buf)
{
FILE *fp;
char fname[PATH_MAX];
time_t ltime;
if ((fp = fopen(path, FOPR)) != NULL) {
fldata_t fdata;
if (fldata( fp, fname, &fdata ) == 0) {
buf->st_dev = fdata.__device;
buf->st_mode = *(short *)(&fdata);
}
/* Determine file size by seeking to EOF */
fseek(fp,0L,SEEK_END);
buf->st_size = ftell(fp);
fclose(fp);
/* set time fields in stat buf to current time. */
time(&ltime);
buf->st_atime =
buf->st_mtime =
buf->st_ctime = ltime;
/* File exists, return success */
return 0;
}
return 1;
}
#ifdef STAND_ALONE
/***************************/
/* Function main_vmmvs() */
/***************************/
/* This function is called as main() to parse arguments */
/* into argc and argv. This is required for stand-alone */
/* execution. This calls the "real" main() when done. */
int MAIN_VMMVS(void)
{
int argc=0;
char *argv[50];
int iArgLen;
char argstr[256];
char **pEPLIST, *pCmdStart, *pArgStart, *pArgEnd;
/* Get address of extended parameter list from S/370 Register 0 */
pEPLIST = (char **)__xregs(0);
/* Null-terminate the argument string */
pCmdStart = *(pEPLIST+0);
pArgStart = *(pEPLIST+1);
pArgEnd = *(pEPLIST+2);
iArgLen = pArgEnd - pCmdStart + 1;
/* Make a copy of the command string */
memcpy(argstr, pCmdStart, iArgLen);
argstr[iArgLen] = '\0'; /* Null-terminate */
/* Store first token (cmd) */
argv[argc++] = strtok(argstr, " ");
/* Store the rest (args) */
while (argv[argc-1])
argv[argc++] = strtok(NULL, " ");
argc--; /* Back off last NULL entry */
/* Call "real" main() function */
return MAIN(argc, argv);
}
#endif /* STAND_ALONE */
#ifndef SFX
/************************/
/* Function version() */
/************************/
void version(__G)
__GDEF
{
int len;
char liblvlmsg [50+1];
char *compiler = "?";
char *platform = "?";
char complevel[64];
/* Map the runtime library level information */
union {
unsigned int iVRM;
struct {
unsigned int pd:4; /* Product designation */
unsigned int vv:4; /* Version */
unsigned int rr:8; /* Release */
unsigned int mm:16; /* Modification level */
} xVRM;
} VRM;
/* Break down the runtime library level */
VRM.iVRM = __librel();
sprintf(liblvlmsg, "Using runtime library level %s V%dR%dM%d",
(VRM.xVRM.pd==1 ? "LE" : "CE"),
VRM.xVRM.vv, VRM.xVRM.rr, VRM.xVRM.mm);
/* Note: LE = Language Environment, CE = Common Env. (C/370). */
/* This refers ONLY to the current runtimes, not the compiler. */
#ifdef VM_CMS
platform = "VM/CMS";
#ifdef __IBMC__
compiler = "IBM C";
#else
compiler = "C/370";
#endif
#endif
#ifdef MVS
platform = "MVS";
#ifdef __IBMC__
compiler = "IBM C/C++";
#else
compiler = "C/370";
#endif
#endif
#ifdef __COMPILER_VER__
VRM.iVRM = __COMPILER_VER__;
sprintf(complevel," V%dR%dM%d",
VRM.xVRM.vv, VRM.xVRM.rr, VRM.xVRM.mm);
#else
#ifdef __IBMC__
sprintf(complevel," V%dR%d", __IBMC__ / 100, (__IBMC__ % 100)/10);
#else
complevel[0] = '\0';
#endif
#endif
/* Output is in the form "Compiled with %s%s for %s%s%s%s." */
len = sprintf((char *)slide, LoadFarString(CompiledWith),
/* Add compiler name and level */
compiler, complevel,
/* Add compile environment */
platform,
/* Add timestamp */
#ifdef __DATE__
" on " __DATE__
#ifdef __TIME__
" at " __TIME__
#endif
#endif
".\n", "",
liblvlmsg
);
(*G.message)((zvoid *)&G, slide, (ulg)len, 0);
} /* end function version() */
#endif /* !SFX */
View Git Blame Copy Permalink