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boinc/zip/zip/zipnote.c

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/*
Copyright (c) 1990-1999 Info-ZIP. All rights reserved.
See the accompanying file LICENSE, version 1999-Oct-05 or later
(the contents of which are also included in zip.h) for terms of use.
If, for some reason, both of these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.cdrom.com/pub/infozip/license.html
*/
/*
* zipnote.c by Mark Adler.
*/
#define __ZIPNOTE_C
#ifndef UTIL
#define UTIL
#endif
#include "zip.h"
#define DEFCPYRT /* main module: enable copyright string defines! */
#include "revision.h"
#include <signal.h>
/* Character to mark zip entry names in the comment file */
#define MARK '@'
#define MARKE " (comment above this line)"
#define MARKZ " (zip file comment below this line)"
/* Temporary zip file name and file pointer */
local char *tempzip;
local FILE *tempzf;
/* Local functions */
local void handler OF((int));
local void license OF((void));
local void help OF((void));
local void version_info OF((void));
local void putclean OF((char *, extent));
local char *getline OF((char *, extent));
local int catalloc OF((char * far *, char *));
int main OF((int, char **));
#ifdef MACOS
#define ziperr(c, h) zipnoteerr(c, h)
#define zipwarn(a, b) zipnotewarn(a, b)
void zipnoteerr(int c,char *h);
void zipnotewarn(char *a,char *b);
#endif
#ifdef QDOS
#define exit(p1) QDOSexit()
#endif
void ziperr(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. */
{
if (PERR(c))
perror("zipnote error");
fprintf(stderr, "zipnote error: %s (%s)\n", errors[c-1], h);
if (tempzf != NULL)
fclose(tempzf);
if (tempzip != NULL)
{
destroy(tempzip);
free((zvoid *)tempzip);
}
if (zipfile != NULL)
free((zvoid *)zipfile);
EXIT(c);
}
local void handler(s)
int s; /* signal number (ignored) */
/* Upon getting a user interrupt, abort cleanly using ziperr(). */
{
#ifndef MSDOS
putc('\n', stderr);
#endif /* !MSDOS */
ziperr(ZE_ABORT, "aborting");
s++; /* keep some compilers happy */
}
void zipwarn(a, b)
char *a, *b; /* message strings juxtaposed in output */
/* Print a warning message to stderr and return. */
{
fprintf(stderr, "zipnote 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], "zipnote");
putchar('\n');
}
for (i = 0; i < sizeof(swlicense)/sizeof(char *); i++)
puts(swlicense[i]);
}
local void help()
/* Print help (along with license info) to stdout. */
{
extent i; /* counter for help array */
/* help array */
static ZCONST char *text[] = {
"",
"ZipNote %s (%s)",
#ifdef VM_CMS
"Usage: zipnote [-w] [-b fm] zipfile",
#else
"Usage: zipnote [-w] [-b path] zipfile",
#endif
" the default action is to write the comments in zipfile to stdout",
" -w write the zipfile comments from stdin",
#ifdef VM_CMS
" -b use \"fm\" as the filemode for the temporary zip file",
#else
" -b use \"path\" for the temporary zip file",
#endif
" -h show this help -v show version info -L show software license",
"",
"Example:",
#ifdef VMS
" define/user sys$output foo.tmp",
" zipnote foo.zip",
" edit foo.tmp",
" ... then you edit the comments, save, and exit ...",
" define/user sys$input foo.tmp",
" zipnote -w foo.zip",
#else
#ifdef RISCOS
" zipnote foo/zip > foo/tmp",
" <!Edit> foo/tmp",
" ... then you edit the comments, save, and exit ...",
" zipnote -w foo/zip < foo/tmp",
#else
#ifdef VM_CMS
" zipnote foo.zip > foo.tmp",
" xedit foo tmp",
" ... then you edit the comments, save, and exit ...",
" zipnote -w foo.zip < foo.tmp",
#else
" zipnote foo.zip > foo.tmp",
" ed foo.tmp",
" ... then you edit the comments, save, and exit ...",
" zipnote -w foo.zip < foo.tmp",
#endif /* VM_CMS */
#endif /* RISCOS */
#endif /* VMS */
"",
" \"@ name\" can be followed by an \"@=newname\" line to change the name"
};
for (i = 0; i < sizeof(copyright)/sizeof(char *); i++) {
printf(copyright[i], "zipnote");
putchar('\n');
}
for (i = 0; i < sizeof(text)/sizeof(char *); i++)
{
printf(text[i], VERSION, REVDATE);
putchar('\n');
}
}
/*
* XXX put this in version.c
*/
local void version_info()
/* Print verbose info about program version and compile time options
to stdout. */
{
extent i; /* counter in text arrays */
/* Options info array */
static ZCONST char *comp_opts[] = {
#ifdef DEBUG
"DEBUG",
#endif
NULL
};
for (i = 0; i < sizeof(copyright)/sizeof(char *); i++)
{
printf(copyright[i], "zipnote");
putchar('\n');
}
for (i = 0; i < sizeof(versinfolines)/sizeof(char *); i++)
{
printf(versinfolines[i], "ZipNote", VERSION, REVDATE);
putchar('\n');
}
version_local();
puts("ZipNote special compilation options:");
for (i = 0; (int)i < (int)(sizeof(comp_opts)/sizeof(char *) - 1); i++)
{
printf("\t%s\n",comp_opts[i]);
}
if (i == 0)
puts("\t[none]");
}
local void putclean(s, n)
char *s; /* string to write to stdout */
extent n; /* length of string */
/* Write the string s to stdout, filtering out control characters that are
not tab or newline (mainly to remove carriage returns), and prefix MARK's
and backslashes with a backslash. Also, terminate with a newline if
needed. */
{
int c; /* next character in string */
int e; /* last character written */
e = '\n'; /* if empty, write nothing */
while (n--)
{
c = *(uch *)s++;
if (c == MARK || c == '\\')
putchar('\\');
if (c >= ' ' || c == '\t' || c == '\n')
{ e=c; putchar(e); }
}
if (e != '\n')
putchar('\n');
}
local char *getline(buf, size)
char *buf;
extent size;
/* Read a line of text from stdin into string buffer 'buf' of size 'size'.
In case of buffer overflow or EOF, a NULL pointer is returned. */
{
char *line;
unsigned len;
line = fgets(buf, size, stdin);
if (line != NULL && (len = strlen(line)) > 0) {
if (len == size-1 && line[len-1] != '\n') {
/* buffer is full and record delimiter not seen -> overflow */
line = NULL;
} else {
/* delete trailing record delimiter */
if (line[len-1] == '\n') line[len-1] = '\0';
}
}
return line;
}
local int catalloc(a, s)
char * far *a; /* pointer to a pointer to a malloc'ed string */
char *s; /* string to concatenate on a */
/* Concatentate the string s to the malloc'ed string pointed to by a.
Preprocess s by removing backslash escape characters. */
{
char *p; /* temporary pointer */
char *q; /* temporary pointer */
for (p = q = s; *q; *p++ = *q++)
if (*q == '\\' && *(q+1))
q++;
*p = 0;
if ((p = malloc(strlen(*a) + strlen(s) + 3)) == NULL)
return ZE_MEM;
strcat(strcat(strcpy(p, *a), **a ? "\r\n" : ""), s);
free((zvoid *)*a);
*a = p;
return ZE_OK;
}
#ifndef USE_ZIPNOTEMAIN
int main(argc, argv)
#else
int zipnotemain(argc, argv)
#endif
int argc; /* number of tokens in command line */
char **argv; /* command line tokens */
/* Write the comments in the zipfile to stdout, or read them from stdin. */
{
char a[FNMAX+1]; /* input line buffer */
ulg c; /* start of central directory */
int k; /* next argument type */
char *q; /* steps through option arguments */
int r; /* arg counter, temporary variable */
ulg s; /* length of central directory */
int t; /* attributes of zip file */
int w; /* true if updating zip file from stdin */
FILE *x, *y; /* input and output zip files */
struct zlist far *z; /* steps through zfiles linked list */
#ifdef THEOS
setlocale(LC_CTYPE, "I");
#endif
/* If no args, show help */
if (argc == 1)
{
help();
EXIT(0);
}
init_upper(); /* build case map table */
/* Go through args */
zipfile = tempzip = NULL;
tempzf = NULL;
k = w = 0;
for (r = 1; r < argc; r++)
if (*argv[r] == '-') {
if (argv[r][1])
for (q = argv[r]+1; *q; q++)
switch (*q)
{
case 'b': /* Specify path for temporary file */
if (k)
ziperr(ZE_PARMS, "use -b before zip file name");
else
k = 1; /* Next non-option is path */
break;
case 'h': /* Show help */
help(); EXIT(0);
case 'l': case 'L': /* Show copyright and disclaimer */
license(); EXIT(0);
case 'v': /* Show version info */
version_info(); EXIT(0);
case 'w':
w = 1; break;
default:
ziperr(ZE_PARMS, "unknown option");
}
else
ziperr(ZE_PARMS, "zip file cannot be stdin");
} else
if (k == 0)
{
if (zipfile == NULL)
{
if ((zipfile = ziptyp(argv[r])) == NULL)
ziperr(ZE_MEM, "was processing arguments");
}
else
ziperr(ZE_PARMS, "can only specify one zip file");
}
else
{
tempath = argv[r];
k = 0;
}
if (zipfile == NULL)
ziperr(ZE_PARMS, "need to specify zip file");
/* Read zip file */
if ((r = readzipfile()) != ZE_OK)
ziperr(r, zipfile);
if (zfiles == NULL)
ziperr(ZE_NAME, zipfile);
/* Put comments to stdout, if not -w */
if (!w)
{
for (z = zfiles; z != NULL; z = z->nxt)
{
printf("%c %s\n", MARK, z->zname);
putclean(z->comment, z->com);
printf("%c%s\n", MARK, MARKE);
}
printf("%c%s\n", MARK, MARKZ);
putclean(zcomment, zcomlen);
EXIT(ZE_OK);
}
/* If updating comments, make sure zip file is writeable */
if ((x = fopen(zipfile, "a")) == NULL)
ziperr(ZE_CREAT, zipfile);
fclose(x);
t = getfileattr(zipfile);
/* Process stdin, replacing comments */
z = zfiles;
while (getline(a, FNMAX+1) != NULL && (a[0] != MARK || strcmp(a + 1, MARKZ)))
{ /* while input and not file comment */
if (a[0] != MARK || a[1] != ' ') /* better be "@ name" */
ziperr(ZE_NOTE, "unexpected input");
while (z != NULL && strcmp(a + 2, z->zname))
z = z->nxt; /* allow missing entries in order */
if (z == NULL)
ziperr(ZE_NOTE, "unknown entry name");
if (getline(a, FNMAX+1) != NULL && a[0] == MARK && a[1] == '=')
{
if (z->name != z->iname)
free((zvoid *)z->iname);
if ((z->iname = malloc(strlen(a+1))) == NULL)
ziperr(ZE_MEM, "was changing name");
#ifdef EBCDIC
strtoasc(z->iname, a+2);
#else
strcpy(z->iname, a+2);
#endif
/*
* Don't update z->nam here, we need the old value a little later.....
* The update is handled in zipcopy().
*/
getline(a, FNMAX+1);
}
if (z->com) /* change zip entry comment */
free((zvoid *)z->comment);
z->comment = malloc(1); *(z->comment) = 0;
while (a != NULL && *a != MARK)
{
if ((r = catalloc(&(z->comment), a)) != ZE_OK)
ziperr(r, "was building new comments");
getline(a, FNMAX+1);
}
z->com = strlen(z->comment);
z = z->nxt; /* point to next entry */
}
if (a != NULL) /* change zip file comment */
{
zcomment = malloc(1); *zcomment = 0;
while (getline(a, FNMAX+1) != NULL)
if ((r = catalloc(&zcomment, a)) != ZE_OK)
ziperr(r, "was building new comments");
zcomlen = strlen(zcomment);
}
/* Open output zip file for writing */
if ((tempzf = y = fopen(tempzip = tempname(zipfile), FOPW)) == NULL)
ziperr(ZE_TEMP, tempzip);
/* Open input zip file again, copy preamble if any */
if ((x = fopen(zipfile, FOPR)) == NULL)
ziperr(ZE_NAME, zipfile);
if (zipbeg && (r = fcopy(x, y, zipbeg)) != ZE_OK)
ziperr(r, r == ZE_TEMP ? tempzip : zipfile);
tempzn = zipbeg;
/* Go through local entries, copying them over as is */
fix = 3; /* needed for zipcopy if name changed */
for (z = zfiles; z != NULL; z = z->nxt) {
if ((r = zipcopy(z, x, y)) != ZE_OK)
ziperr(r, "was copying an entry");
}
fclose(x);
/* Write central directory and end of central directory with new comments */
if ((c = ftell(y)) == (ulg)(-1L)) /* get start of central */
ziperr(ZE_TEMP, tempzip);
for (z = zfiles; z != NULL; z = z->nxt)
if ((r = putcentral(z, y)) != ZE_OK)
ziperr(r, tempzip);
if ((s = ftell(y)) == (ulg)-1L) /* get end of central */
ziperr(ZE_TEMP, tempzip);
s -= c; /* compute length of central */
if ((r = putend((int)zcount, s, c, zcomlen, zcomment, y)) != ZE_OK)
ziperr(r, tempzip);
tempzf = NULL;
if (fclose(y))
ziperr(ZE_TEMP, tempzip);
if ((r = replace(zipfile, tempzip)) != ZE_OK)
{
zipwarn("new zip file left as: ", tempzip);
free((zvoid *)tempzip);
tempzip = NULL;
ziperr(r, "was replacing the original zip file");
}
free((zvoid *)tempzip);
tempzip = NULL;
setfileattr(zipfile, t);
#ifdef RISCOS
/* Set the filetype of the zipfile to &DDC */
setfiletype(zipfile,0xDDC);
#endif
free((zvoid *)zipfile);
zipfile = NULL;
/* Done! */
RETURN(0);
}
const char *BOINC_RCSID_74827256e1 = "$Id$";
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