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/*
Copyright (C) 1990-1992 Mark Adler, Richard B. Wales, Jean-loup Gailly,
Kai Uwe Rommel and Igor Mandrichenko.
Permission is granted to any individual or institution to use, copy, or
redistribute this software so long as all of the original files are included
unmodified, that it is not sold for profit, and that this copyright notice
is retained.
*/
/*
* zip.c by Mark Adler.
*/
#include "revision.h"
#include "zip.h"
#ifdef VMS
# include "VMSmunch.h"
# define echon() echo(1)
#endif
#include <signal.h>
#ifdef MACOS
# include <console.h>
#endif
#define PWLEN 80 /* Input buffer size for reading encryption key */
#define MAXCOM 256 /* Maximum one-line comment size */
/* Local option flags */
#define DELETE 0
#define ADD 1
#define UPDATE 2
#define FRESHEN 3
local int action = ADD; /* one of ADD, UPDATE, FRESHEN, or DELETE */
local int comadd = 0; /* 1=add comments for new files */
local int zipedit = 0; /* 1=edit zip comment and all file comments */
local int dispose = 0; /* 1=remove files after put in zip file */
local int latest = 0; /* 1=set zip file time to time of latest file */
local ulg before = 0; /* 0=ignore, else exclude files before this time */
/* Temporary zip file name and file pointer */
local char *tempzip;
local FILE *tempzf;
/* Local functions */
#ifdef PROTO
local void freeup(void);
local void leave(int);
local void handler(int);
local void license(void);
local void help(void);
local void zipstdout(void);
void main(int, char **);
local int count_args(char *s);
local void envargs(int *Pargc, char ***Pargv, char *envstr);
#endif /* PROTO */
local void freeup()
/* Free all allocations in the found list and the zfiles list */
{
struct flist far *f; /* steps through found list */
struct zlist far *z; /* pointer to next entry in zfiles list */
for (f = found; f != NULL; f = fexpel(f))
;
while (zfiles != NULL)
{
z = zfiles->nxt;
free((voidp *)(zfiles->name));
free((voidp *)(zfiles->zname));
if (zfiles->ext)
free((voidp *)(zfiles->extra));
if (zfiles->cext && zfiles->cextra != zfiles->extra)
free((voidp *)(zfiles->cextra));
if (zfiles->com)
free((voidp *)(zfiles->comment));
farfree((voidp far *)zfiles);
zfiles = z;
zcount--;
}
}
local void leave(e)
int e; /* exit code */
/* Process -o and -m options (if specified), free up malloc'ed stuff, and
exit with the code e. */
{
int r; /* return value from trash() */
ulg t; /* latest time in zip file */
struct zlist far *z; /* pointer into zfile list */
/* If latest, set time to zip file to latest file in zip file */
if (latest && strcmp(zipfile, "-"))
{
diag("changing time of zip file to time of latest file in it");
/* find latest time in zip file */
if (zfiles == NULL)
warn("zip file is empty, can't make it as old as latest entry", "");
else {
t = zfiles->tim;
for (z = zfiles->nxt; z != NULL; z = z->nxt)
if (t < z->tim)
t = z->tim;
/* set modified time of zip file to that time */
stamp(zipfile, t);
}
}
if (tempath != NULL)
{
free((voidp *)tempath);
tempath = NULL;
}
if (zipfile != NULL)
{
free((voidp *)zipfile);
zipfile = NULL;
}
/* If dispose, delete all files in the zfiles list that are marked */
if (dispose)
{
diag("deleting files that were added to zip file");
if ((r = trash()) != ZE_OK)
err(r, "was deleting moved files and directories");
}
/* Done! */
freeup();
#ifdef VMS
exit(0);
#else /* !VMS */
exit(e);
#endif /* ?VMS */
}
void err(c, h)
int c; /* error code from the ZE_ class */
char *h; /* message about how it happened */
/* Issue a message for the error, clean up files and memory, and exit. */
{
static int error_level;
if (error_level++ > 0) exit(0); /* avoid recursive err() */
if (PERR(c))
perror("zip error");
fprintf(stderr, "zip error: %s (%s)\n", errors[c-1], h);
if (tempzip != NULL)
{
if (tempzip != zipfile) {
if (tempzf != NULL)
fclose(tempzf);
#ifndef DEBUG
destroy(tempzip);
#endif
free((voidp *)tempzip);
} else {
/* -g option, attempt to restore the old file */
int k = 0; /* keep count for end header */
ulg cb = cenbeg; /* get start of central */
struct zlist far *z; /* steps through zfiles linked list */
fprintf(stderr, "attempting to restore %s to its previous state\n",
zipfile);
fseek(tempzf, cenbeg, SEEK_SET);
tempzn = cenbeg;
for (z = zfiles; z != NULL; z = z->nxt)
{
putcentral(z, tempzf);
tempzn += 4 + CENHEAD + z->nam + z->cext + z->com;
k++;
}
putend(k, tempzn - cb, cb, zcomlen, zcomment, tempzf);
tempzf = NULL;
fclose(tempzf);
}
}
if (key != NULL)
free((voidp *)key);
if (tempath != NULL)
free((voidp *)tempath);
if (zipfile != NULL)
free((voidp *)zipfile);
freeup();
#ifdef VMS
c = 0;
#endif
exit(c);
}
void error(h)
char *h;
/* Internal error, should never happen */
{
err(ZE_LOGIC, h);
}
local void handler(s)
int s; /* signal number (ignored) */
/* Upon getting a user interrupt, turn echo back on for tty and abort
cleanly using err(). */
{
#ifndef MSDOS
# ifdef CRYPT
echon();
# endif
putc('\n', stderr);
#endif /* !MSDOS */
err(ZE_ABORT, "aborting");
s++; /* keep some compilers happy */
}
void warn(a, b)
char *a, *b; /* message strings juxtaposed in output */
/* Print a warning message to stderr and return. */
{
fprintf(stderr, "zip warning: %s%s\n", a, b);
}
local void license()
/* Print license information to stdout. */
{
extent i; /* counter for copyright array */
for (i = 0; i < sizeof(copyright)/sizeof(char *); i++) {
printf(copyright[i], "zip");
putchar('\n');
}
for (i = 0; i < sizeof(disclaimer)/sizeof(char *); i++)
puts(disclaimer[i]);
}
local void help()
/* Print help (along with license info) to stdout. */
{
extent i; /* counter for help array */
/* help array */
static char *text[] = {
"",
"Zip %d.%d (%s). Usage:",
"zip [-options] [-b path] [-t mmddyy] [-n suffixes] [zipfile list] [-x list]",
" The default action is to add or replace zipfile entries from list, which",
" can include the special name - to compress standard input.",
" If zipfile and list are ommitted, zip compresses stdin to stdout.",
" -f freshen: only changed files -u update: only changed or new files",
" -d delete entries in zipfile -m move into zipfile (delete files)",
" -k simulate PKZIP made zipfile -g allow growing existing zipfile",
" -h show this help -L show software license",
" -r recurse into directories -j junk (don't record) directory names",
" -0 store only -l translate end-of-line",
" -1 compress faster -9 compress better",
" -q quiet operation -n don't compress these suffixes",
" -c add one-line comments -z add zipfile comment",
" -b use \"path\" for temp files -t only do files after \"mmddyy\"",
" -@ read names from stdin -o make zipfile as old as latest entry",
#ifdef CRYPT
" -e encrypt (-ee verify key)",
#endif
#ifdef VMS
" -w append the VMS version number to the name stored in the zip file",
" -V save VMS file attributes",
#endif /* VMS */
#ifdef OS2
" -E use the .LONGNAME Extended attribute (if found) as filename",
#endif /* OS2 */
#ifdef S_IFLNK
" -y store symbolic links as the link instead of the referenced file",
#endif /* !S_IFLNK */
" -x exclude the names that follow from those operated on"
};
for (i = 0; i < sizeof(copyright)/sizeof(char *); i++)
{
printf(copyright[i], "zip");
putchar('\n');
}
for (i = 0; i < sizeof(text)/sizeof(char *); i++)
{
printf(text[i], REVISION / 10, REVISION % 10, REVDATE);
putchar('\n');
}
}
/* Do command line expansion for MSDOS and VMS */
#if defined(MSVMS) && !defined(__GO32__)
# define PROCNAME(n) (action==ADD||action==UPDATE?wild(n):procname(n))
#else /* !MSVMS */
# define PROCNAME(n) procname(n)
#endif /* ?MSVMS */
local void zipstdout()
/* setup for writing zip file on stdout */
{
int r;
mesg = stderr;
if (isatty(1))
err(ZE_PARMS, "no zip file provided");
if ((zipfile = malloc(4)) == NULL)
err(ZE_MEM, "was processing arguments");
strcpy(zipfile, "-");
if ((r = readzipfile()) != ZE_OK)
err(r, zipfile);
}
void main(argc, argv)
int argc; /* number of tokens in command line */
char **argv; /* command line tokens */
/* Add, update, freshen, or delete zip entries in a zip file. See the
command help in help() above. */
{
int a; /* attributes of zip file */
ulg c; /* start of central directory */
int d; /* true if just adding to a zip file */
char *e; /* malloc'd comment buffer */
struct flist far *f; /* steps through found linked list */
int i; /* arg counter, root directory flag */
int k; /* next argument type, marked counter,
comment size, entry count */
ulg n; /* total of entry len's */
int o; /* true if there were any ZE_OPEN errors */
char *p; /* steps through option arguments */
char *pp; /* temporary pointer */
int r; /* temporary variable */
ulg t; /* file time, length of central directory */
struct zlist far *v; /* temporary variable */
struct zlist far * far *w; /* pointer to last link in zfiles list */
FILE *x, *y; /* input and output zip files */
struct zlist far *z; /* steps through zfiles linked list */
char *zipbuf; /* stdio buffer for the zip file */
mesg = (FILE *) stdout; /* cannot be made at link time for VMS */
init_upper(); /* build case map table */
#ifdef MACOS
argc = ccommand(&argv);
#endif
/* Process arguments */
diag("processing arguments");
if (argc == 1 && isatty(1))
{
help();
exit(0);
}
envargs(&argc, &argv, "ZIPOPT"); /* get options from environment */
zipfile = tempzip = NULL;
tempzf = NULL;
d = 0; /* disallow adding to a zip file */
signal(SIGINT, handler);
signal(SIGTERM, handler);
k = 0; /* Next non-option argument type */
for (i = 1; i < argc; i++)
{
if (argv[i][0] == '-')
if (argv[i][1])
for (p = argv[i]+1; *p; p++)
switch(*p)
{
case '0':
method = STORE; level = 0; break;
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
/* Set the compression efficacy */
level = *p - '0'; break;
case 'b': /* Specify path for temporary file */
if (k != 0)
err(ZE_PARMS, "use -b before zip file name");
else
k = 1; /* Next non-option is path */
break;
case 'c': /* Add comments for new files in zip file */
comadd = 1; break;
case 'd': /* Delete files from zip file */
if (action != ADD)
err(ZE_PARMS, "specify just one action");
action = DELETE;
break;
#ifdef CRYPT
case 'e': /* Encrypt */
e = key == NULL ? (char *)NULL : key;
if ((key = malloc(PWLEN+1)) == NULL)
err(ZE_MEM, "was getting encryption password");
if (getp(e == NULL ? "Enter password: " : "Verify password: ",
key, PWLEN+1) == NULL)
err(ZE_PARMS, "stderr is not a tty");
if (e != NULL)
{
r = strcmp(key, e);
free((voidp *)e);
if (r)
err(ZE_PARMS, "password not verified");
}
latest = 1; /* to make breaking the code harder */
break;
#endif /* CRYPT */
case 'f': /* Freshen zip file--overwrite only */
if (action != ADD)
err(ZE_PARMS, "specify just one action");
action = FRESHEN;
break;
case 'g': /* Allow appending to a zip file */
d = 1; break;
case 'h': case 'H': case '?': /* Help */
help();
leave(ZE_OK);
case 'j': /* Junk directory names */
pathput = 0; break;
case 'k': /* Make entries using DOS names (k for Katz) */
dosify = 1; break;
case 'l': /* Translate end-of-line */
translate_eol = 1; break;
case 'L': /* Show license, version */
license();
leave(ZE_OK);
case 'm': /* Delete files added or updated in zip file */
dispose = 1; break;
case 'n': /* Don't compress files with a special suffix */
special = NULL;
break;
case 'o': /* Set zip file time to time of latest file in it */
latest = 1; break;
case 'p': /* Store path with name */
break; /* (do nothing as annoyance avoidance) */
case 'q': /* Quiet operation */
noisy = 0; break;
case 'r': /* Recurse into subdirectories */
recurse = 1; break;
case 't': /* Exclude files earlier than specified date */
if (before)
err(ZE_PARMS, "can only have one -t");
k = 2; break;
case 'u': /* Update zip file--overwrite only if newer */
if (action != ADD)
err(ZE_PARMS, "specify just one action");
action = UPDATE;
break;
case 'v': /* Mention oddities in zip file structure */
verbose++;
break;
#ifdef VMS
case 'w': /* Append the VMS version number */
vmsver = 1; break;
case 'V': /* Store in VMS format */
vms_native = 1; break;
#endif /* VMS */
case 'x': /* Exclude following files */
if (k != 4 &&
(k != 3 || (action != UPDATE && action != FRESHEN)))
err(ZE_PARMS, "nothing to exclude (-x) from");
if (k == 3) /* must be -u or -f */
for (z = zfiles; z != NULL; z = z->nxt)
z->mark = 1; /* mark all of them */
k = 5;
if ((r = exclude()) != ZE_OK)
if (r == ZE_PARMS)
err(r, "cannot repeat names in zip file");
else
err(r, "was processing list of files");
break;
#ifdef S_IFLNK
case 'y': /* Store symbolic links as such */
linkput = 1; break;
#endif /* S_IFLNK */
case 'z': /* Edit zip file comment */
zipedit = 1; break;
case '@': /* read file names from stdin */
while ((pp = getnam(errbuf)) != NULL)
{
if ((r = PROCNAME(pp)) != ZE_OK)
if (r == ZE_MISS)
warn("name not matched: ", pp);
else
err(r, pp);
}
break;
#ifdef OS2
case 'E':
/* use the .LONGNAME EA (if any) as the file's name. */
use_longname_ea = 1;
break;
#endif
default:
{
sprintf(errbuf, "no such option: %c", *p);
err(ZE_PARMS, errbuf);
}
}
else /* just a dash */
switch (k)
{
case 0:
zipstdout();
k = 3;
break;
case 1:
err(ZE_PARMS, "invalid path");
break;
case 2:
err(ZE_PARMS, "invalid time");
break;
case 3: case 4: case 5:
if ((r = PROCNAME(argv[i])) != ZE_OK)
if (r == ZE_MISS)
warn("name not matched: ", argv[i]);
else
err(r, argv[i]);
if (k == 3)
k = 4;
}
else /* not an option */
{
if (special == NULL)
special = argv[i];
else
switch (k)
{
case 0:
if ((zipfile = ziptyp(argv[i])) == NULL)
err(ZE_MEM, "was processing arguments");
if ((r = readzipfile()) != ZE_OK)
err(r, zipfile);
k = 3;
break;
case 1:
if ((tempath = malloc(strlen(argv[i]) + 1)) == NULL)
err(ZE_MEM, "was processing arguments");
strcpy(tempath, argv[i]);
k = 0;
break;
case 2:
{
int yy, mm, dd; /* results of sscanf() */
if (sscanf(argv[i], "%2d%2d%2d", &mm, &dd, &yy) != 3 ||
mm < 1 || mm > 12 || dd < 1 || dd > 31)
err(ZE_PARMS, "invalid date entered for -t option");
before = dostime(yy + (yy < 80 ? 2000 : 1900), mm, dd, 0, 0, 0);
k = 0;
break;
}
case 3: case 4: case 5:
if ((r = PROCNAME(argv[i])) != ZE_OK)
if (r == ZE_MISS)
warn("name not matched: ", argv[i]);
else
err(r, argv[i]);
if (k == 3)
k = 4;
}
}
}
if (k < 3) { /* zip used as filter */
zipstdout();
if ((r = procname("-")) != ZE_OK)
if (r == ZE_MISS)
warn("name not matched: ", "-");
else
err(r, "-");
k = 4;
}
if (k != 5) /* Clean up selections */
{
if (k == 3 && (action == UPDATE || action == FRESHEN))
for (z = zfiles; z != NULL; z = z->nxt)
z->mark = 1; /* if -u or -f with no args, do all */
if ((r = exclude()) != ZE_OK) /* remove duplicates in found list */
if (r == ZE_PARMS)
err(r, "cannot repeat names in zip file");
else
err(r, "was processing list of files");
}
if (zcount)
free((voidp *)zsort);
/* Check option combinations */
if (action == DELETE && (method != BEST || dispose || recurse ||
key != NULL || comadd || zipedit))
err(ZE_PARMS, "invalid option(s) used with -d");
if (linkput && dosify)
err(ZE_PARMS, "can't use -y with -k");
if ((action != ADD || d) && !strcmp(zipfile, "-"))
err(ZE_PARMS, "can't use -d,-f,-u or -g on standard output");
#ifdef VMS
if (vms_native && translate_eol)
err(ZE_PARMS, "can't use -V with -l");
#endif
if (zcount == 0 && (action != ADD || d))
warn(zipfile, " not found or empty");
/* If -b not specified, make temporary path the same as the zip file */
#ifdef MSDOS
if (tempath == NULL && ((p = strrchr(zipfile, '/')) != NULL ||
(p = strrchr(zipfile, '\\')) != NULL ||
(p = strrchr(zipfile, ':')) != NULL))
{
if (*p == ':')
p++;
#else /* !MSDOS */
if (tempath == NULL && (p = strrchr(zipfile, '/')) != NULL)
{
#endif /* ?MSDOS */
if ((tempath = malloc((int)(p - zipfile) + 1)) == NULL)
err(ZE_MEM, "was processing arguments");
r = *p; *p = 0;
strcpy(tempath, zipfile);
*p = (char)r;
}
/* For each marked entry, if not deleting, check if it exists, and if
updating or freshening, compare date with entry in old zip file.
Unmark if it doesn't exist or is too old, else update marked count. */
diag("stating marked entries");
k = 0; /* Initialize marked count */
for (z = zfiles; z != NULL; z = z->nxt)
if (z->mark)
if (action != DELETE &&
((t = filetime(z->name, (ulg *)NULL, (long *)NULL)) == 0 ||
t < before ||
((action == UPDATE || action == FRESHEN) && t <= z->tim)))
{
z->mark = 0;
z->trash = t && t >= before; /* delete if -um or -fm */
if (verbose)
fprintf(mesg, "zip diagnostic: %s %s\n", z->name,
z->trash ? "up to date" : "missing or early");
}
else
k++;
/* Remove entries from found list that do not exist or are too old */
diag("stating new entries");
for (f = found; f != NULL;)
if (action == DELETE || action == FRESHEN ||
(t = filetime(f->name, (ulg *)NULL, (long *)NULL)) == 0 ||
t < before || (namecmp(f->name, zipfile) == 0 && strcmp(zipfile, "-")))
f = fexpel(f);
else
f = f->nxt;
/* Make sure there's something left to do */
if (k == 0 && found == NULL && !(zfiles != NULL && (latest || zipedit)))
if (action == UPDATE || action == FRESHEN)
leave(ZE_OK);
else if (zfiles == NULL && latest)
err(ZE_NAME, zipfile);
else
err(ZE_NONE, zipfile);
d = (d && k == 0 && (zipbeg || zfiles != NULL)); /* d true if appending */
/* Before we get carried away, make sure zip file is writeable */
if (strcmp(zipfile, "-"))
{
x = zfiles == NULL && zipbeg == 0 ? fopen(zipfile, FOPW) :
fopen(zipfile, FOPM);
/* Note: FOPW and FOPM expand to several parameters for VMS */
if (x == NULL)
err(ZE_CREAT, zipfile);
fclose(x);
a = getfileattr(zipfile);
if (zfiles == NULL && zipbeg == 0)
destroy(zipfile);
}
else
a = 0;
/* Open zip file and temporary output file */
diag("opening zip file and creating temporary zip file");
x = NULL;
tempzn = 0;
if (strcmp(zipfile, "-") == 0)
{
#ifdef MSDOS
/* Set stdout mode to binary for MSDOS systems */
setmode(fileno(stdout), O_BINARY);
tempzf = y = fdopen(fileno(stdout), FOPW);
#else
tempzf = y = stdout;
#endif
tempzip = "-";
}
else if (d) /* d true if just appending (-g) */
{
if ((y = fopen(zipfile, FOPM)) == NULL)
err(ZE_NAME, zipfile);
tempzip = zipfile;
tempzf = y;
if (fseek(y, cenbeg, SEEK_SET))
err(ferror(y) ? ZE_READ : ZE_EOF, zipfile);
tempzn = cenbeg;
}
else
{
if ((zfiles != NULL || zipbeg) && (x = fopen(zipfile, FOPR_EX)) == NULL)
err(ZE_NAME, zipfile);
if ((tempzip = tempname(zipfile)) == NULL)
err(ZE_MEM, tempzip);
if ((tempzf = y = fopen(tempzip, FOPW)) == NULL)
err(ZE_TEMP, tempzip);
if (zipbeg && (r = fcopy(x, y, zipbeg)) != ZE_OK)
err(r, r == ZE_TEMP ? tempzip : zipfile);
tempzn = zipbeg;
}
#ifndef VMS
/* Use large buffer to speed up stdio: */
zipbuf = (char *)malloc(ZBSZ);
if (zipbuf == NULL)
err(ZE_MEM, tempzip);
# ifdef _IOFBF
setvbuf(y, zipbuf, _IOFBF, ZBSZ);
# else
setbuf(y, zipbuf);
# endif /* _IOBUF */
#endif /* VMS */
o = 0; /* no ZE_OPEN errors yet */
/* Process zip file, updating marked files */
if (zfiles != NULL)
diag("going through old zip file");
w = &zfiles;
while ((z = *w) != NULL)
if (z->mark)
{
/* if not deleting, zip it up */
if (action != DELETE)
{
if (noisy)
{
fprintf(mesg, "updating %s", z->zname);
fflush(mesg);
}
if ((r = zipup(z, y)) != ZE_OK && r != ZE_OPEN)
{
if (noisy)
{
putc('\n', mesg);
fflush(mesg);
}
sprintf(errbuf, "was zipping %s", z->name);
err(r, errbuf);
}
if (r == ZE_OPEN)
{
o = 1;
if (noisy)
{
putc('\n', mesg);
fflush(mesg);
}
perror("zip warning");
warn("could not open for reading: ", z->name);
warn("will just copy entry over: ", z->zname);
if ((r = zipcopy(z, x, y)) != ZE_OK)
{
sprintf(errbuf, "was copying %s", z->zname);
err(r, errbuf);
}
z->mark = 0;
}
w = &z->nxt;
}
else
{
if (noisy)
{
fprintf(mesg, "deleting %s\n", z->zname);
fflush(mesg);
}
v = z->nxt; /* delete entry from list */
free((voidp *)(z->name));
free((voidp *)(z->zname));
if (z->ext)
free((voidp *)(z->extra));
if (z->cext && z->cextra != z->extra)
free((voidp *)(z->cextra));
if (z->com)
free((voidp *)(z->comment));
farfree((voidp far *)z);
*w = v;
zcount--;
}
}
else
{
/* copy the original entry verbatim */
if (!d && (r = zipcopy(z, x, y)) != ZE_OK)
{
sprintf(errbuf, "was copying %s", z->zname);
err(r, errbuf);
}
w = &z->nxt;
}
/* Process the edited found list, adding them to the zip file */
diag("zipping up new entries, if any");
for (f = found; f != NULL; f = fexpel(f))
{
/* add a new zfiles entry and set the name */
if ((z = (struct zlist far *)farmalloc(sizeof(struct zlist))) == NULL)
err(ZE_MEM, "was adding files to zip file");
z->nxt = NULL;
z->name = f->name;
f->name = NULL;
z->zname = f->zname;
f->zname = NULL;
z->ext = z->cext = z->com = 0;
z->mark = 1;
z->dosflag = f->dosflag;
/* zip it up */
if (noisy)
{
fprintf(mesg, "adding %s", z->zname);
fflush(mesg);
}
if ((r = zipup(z, y)) != ZE_OK && r != ZE_OPEN)
{
if (noisy)
{
putc('\n', mesg);
fflush(mesg);
}
sprintf(errbuf, "was zipping %s", z->name);
err(r, errbuf);
}
if (r == ZE_OPEN)
{
o = 1;
if (noisy)
{
putc('\n', mesg);
fflush(mesg);
}
perror("zip warning");
warn("could not open for reading: ", z->name);
free((voidp *)(z->name));
free((voidp *)(z->zname));
farfree((voidp far *)z);
}
else
{
*w = z;
w = &z->nxt;
zcount++;
}
}
if (key != NULL)
{
free((voidp *)key);
key = NULL;
}
/* Get one line comment for each new entry */
if (comadd)
{
if ((e = malloc(MAXCOM + 1)) == NULL)
err(ZE_MEM, "was reading comment lines");
for (z = zfiles; z != NULL; z = z->nxt)
if (z->mark)
{
if (noisy)
fprintf(mesg, "Enter comment for %s:\n", z->name);
/* ??? reopen /dev/tty if one file was zipped from stdin
* or if file names were read from stdin.
*/
if (fgets(e, MAXCOM+1, stdin) != NULL)
{
if ((p = malloc((k = strlen(e))+1)) == NULL)
{
free((voidp *)e);
err(ZE_MEM, "was reading comment lines");
}
strcpy(p, e);
if (p[k-1] == '\n')
p[--k] = 0;
z->comment = p;
z->com = k;
}
}
free((voidp *)e);
}
/* Get multi-line comment for the zip file */
if (zipedit)
{
if ((e = malloc(MAXCOM + 1)) == NULL)
err(ZE_MEM, "was reading comment lines");
if (noisy && zcomlen)
{
fputs("current zip file comment is:\n", mesg);
fwrite(zcomment, 1, zcomlen, mesg);
if (zcomment[zcomlen-1] != '\n')
putc('\n', mesg);
free((voidp *)zcomment);
}
zcomment = malloc(1);
*zcomment = 0;
if (noisy)
fputs("enter new zip file comment (end with .):\n", mesg);
/* ??? reopen /dev/tty if one file was zipped from stdin
* or if file names were read from stdin.
*/
while (fgets(e, MAXCOM+1, stdin) != NULL && strcmp(e, ".\n"))
{
if (e[(r = strlen(e)) - 1] == '\n')
e[--r] = 0;
if ((p = malloc((*zcomment ? strlen(zcomment) + 3 : 1) + r)) == NULL)
{
free((voidp *)e);
err(ZE_MEM, "was reading comment lines");
}
if (*zcomment)
strcat(strcat(strcpy(p, zcomment), "\r\n"), e);
else
strcpy(p, *e ? e : "\r\n");
free((voidp *)zcomment);
zcomment = p;
}
zcomlen = strlen(zcomment);
free((voidp *)e);
}
/* Write central directory and end header to temporary zip */
diag("writing central directory");
k = 0; /* keep count for end header */
c = tempzn; /* get start of central */
n = t = 0;
for (z = zfiles; z != NULL; z = z->nxt)
{
if ((r = putcentral(z, y)) != ZE_OK)
err(r, tempzip);
tempzn += 4 + CENHEAD + z->nam + z->cext + z->com;
n += z->len;
t += z->siz;
k++;
}
if (k == 0)
warn("zip file empty", "");
if (verbose)
fprintf(mesg, "total bytes=%lu, compressed=%lu -> %d%% savings\n",
n, t, percent(n, t));
t = tempzn - c; /* compute length of central */
diag("writing end of central directory");
if ((r = putend(k, t, c, zcomlen, zcomment, y)) != ZE_OK)
err(r, tempzip);
tempzf = NULL;
if (fclose(y))
err(d ? ZE_WRITE : ZE_TEMP, tempzip);
if (x != NULL)
fclose(x);
/* Replace old zip file with new zip file, leaving only the new one */
if (strcmp(zipfile, "-") && !d)
{
diag("replacing old zip file with new zip file");
if ((r = replace(zipfile, tempzip)) != ZE_OK)
{
warn("new zip file left as: ", tempzip);
free((voidp *)tempzip);
tempzip = NULL;
err(r, "was replacing the original zip file");
}
free((voidp *)tempzip);
}
tempzip = NULL;
if (strcmp(zipfile, "-")) {
setfileattr(zipfile, a);
#ifdef VMS
/* If the zip file existed previously, restore its record format: */
if (x != NULL)
VMSmunch(zipfile, RESTORE_RTYPE, NULL);
#endif
}
/* Finish up (process -o, -m, clean up). Exit code depends on o. */
leave(o ? ZE_OPEN : ZE_OK);
}
/*****************************************************************
| envargs - add default options from environment to command line
|----------------------------------------------------------------
| Author: Bill Davidsen, original 10/13/91, revised 23 Oct 1991.
| This program is in the public domain.
|----------------------------------------------------------------
| Minor program notes:
| 1. Yes, the indirection is a tad complex
| 2. Parenthesis were added where not needed in some cases
| to make the action of the code less obscure.
****************************************************************/
local void
envargs(Pargc, Pargv, envstr)
int *Pargc;
char ***Pargv;
char *envstr;
{
char *getenv();
char *envptr; /* value returned by getenv */
char *bufptr; /* copy of env info */
int argc = 0; /* internal arg count */
int ch; /* spare temp value */
char **argv; /* internal arg vector */
char **argvect; /* copy of vector address */
/* see if anything in the environment */
envptr = getenv(envstr);
if (envptr == NULL || *envptr == 0) return;
/* count the args so we can allocate room for them */
argc = count_args(envptr);
bufptr = malloc(1+strlen(envptr));
if (bufptr == NULL)
err(ZE_MEM, "Can't get memory for arguments");
strcpy(bufptr, envptr);
/* allocate a vector large enough for all args */
argv = (char **)malloc((argc+*Pargc+1)*sizeof(char *));
if (argv == NULL)
err(ZE_MEM, "Can't get memory for arguments");
argvect = argv;
/* copy the program name first, that's always true */
*(argv++) = *((*Pargv)++);
/* copy the environment args first, may be changed */
do {
*(argv++) = bufptr;
/* skip the arg and any trailing blanks */
while ((ch = *bufptr) != '\0' && ch != ' ') ++bufptr;
if (ch == ' ') *(bufptr++) = '\0';
while ((ch = *bufptr) != '\0' && ch == ' ') ++bufptr;
} while (ch);
/* now save old argc and copy in the old args */
argc += *Pargc;
while (--(*Pargc)) *(argv++) = *((*Pargv)++);
/* finally, add a NULL after the last arg, like UNIX */
*argv = NULL;
/* save the values and return */
*Pargv = argvect;
*Pargc = argc;
}
static int
count_args(s)
char *s;
{
int count = 0;
int ch;
do {
/* count and skip args */
++count;
while ((ch = *s) != '\0' && ch != ' ') ++s;
while ((ch = *s) != '\0' && ch == ' ') ++s;
} while (ch);
return count;
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.