home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
World of Shareware - Software Farm 2
/
wosw_2.zip
/
wosw_2
/
CPROG
/
GIFLIB12.ZIP
/
UTIL
/
GIFINTO.C
< prev
next >
Wrap
C/C++ Source or Header
|
1991-05-12
|
5KB
|
160 lines
/*****************************************************************************
* "Gif-Lib" - Yet another gif library. *
* *
* Written by: Gershon Elber Ver 0.1, Jul. 1989 *
******************************************************************************
* Program to read stdin, and save it into the specified file iff the result *
* and inspired by the rle utah tool kit I decided to implement and add it. *
* -q : quite printing mode. *
* -s minsize : the minimum file size to keep it. *
* -h : on line help. *
******************************************************************************
* History: *
* 7 Jul 89 - Version 1.0 by Gershon Elber. *
* 22 Dec 89 - Fix problem with tmpnam (Version 1.1). *
*****************************************************************************/
#ifdef __MSDOS__
#include <io.h>
#include <stdlib.h>
#include <alloc.h>
#endif /* __MSDOS__ */
#include <fcntl.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include "gif_lib.h"
#include "getarg.h"
#define PROGRAM_NAME "GifInto"
#define DEFAULT_MIN_FILE_SIZE 14 /* More than GIF stamp + screen desc. */
#define DEFAULT_OUT_NAME "GifInto.Gif"
#define DEFAULT_TMP_NAME "TempInto.$$$"
#ifdef __MSDOS__
extern unsigned int
_stklen = 16384; /* Increase default stack size. */
#endif /* __MSDOS__ */
#ifdef SYSV
static char *VersionStr =
"Gif library module,\t\tGershon Elber\n\
(C) Copyright 1989 Gershon Elber, Non commercial use only.\n";
static char
*CtrlStr = "GifInto q%- s%-MinFileSize!d h%- GifFile!*s";
#else
static char
*VersionStr =
PROGRAM_NAME
GIF_LIB_VERSION
" Gershon Elber, "
__DATE__ ", " __TIME__ "\n"
"(C) Copyright 1989 Gershon Elber, Non commercial use only.\n";
static char
*CtrlStr =
PROGRAM_NAME
" q%- s%-MinFileSize!d h%- GifFile!*s";
#endif /* SYSV */
static int
MinFileSize = DEFAULT_MIN_FILE_SIZE;
/******************************************************************************
* The is simply: read until EOF, then close the output, test its length, and *
* if non zero then rename it. *
******************************************************************************/
void main(int argc, char **argv)
{
int Error, NumFiles,
MinSizeFlag = FALSE, HelpFlag = FALSE;
char **FileName = NULL,
TmpName[80], FoutTmpName[80], FullPath[80], DefaultName[80], s[80], *p;
FILE *Fin, *Fout;
if ((Error = GAGetArgs(argc, argv, CtrlStr, &GifQuitePrint,
&MinSizeFlag, &MinFileSize, &HelpFlag,
&NumFiles, &FileName)) != FALSE ||
(NumFiles > 1 && !HelpFlag)) {
if (Error)
GAPrintErrMsg(Error);
else if (NumFiles != 1)
GIF_MESSAGE("Error in command line parsing - one GIF file please.");
GAPrintHowTo(CtrlStr);
exit(1);
}
if (HelpFlag) {
fprintf(stderr, VersionStr);
GAPrintHowTo(CtrlStr);
exit(0);
}
/* Open the stdin in binary mode and increase its buffer size: */
#ifdef __MSDOS__
setmode(0, O_BINARY); /* Make sure it is in binary mode. */
if ((Fin = fdopen(0, "rb")) == NULL || /* Make it into a stream: */
setvbuf(Fin, NULL, _IOFBF, GIF_FILE_BUFFER_SIZE))/* Incr. stream buf.*/
#else
if ((Fin = fdopen(0, "r")) == NULL) /* Make it into a stream: */
#endif /* __MSDOS__ */
GIF_EXIT("Failed to open input.");
/* Isolate the directory where our destination is, and set tmp file name */
/* in the very same directory. */
strcpy(FullPath, *FileName);
if ((p = strrchr(FullPath, '/')) != NULL ||
(p = strrchr(FullPath, '\\')) != NULL)
p[1] = 0;
else if ((p = strrchr(FullPath, ':')) != NULL)
p[1] = 0;
else
FullPath[0] = 0; /* No directory or disk specified. */
strcpy(FoutTmpName, FullPath); /* Generate destination temporary name. */
/* Make sure the temporary is made in the current directory: */
p = tmpnam(TmpName);
if (strrchr(p, '/')) p = strrchr(p, '/') + 1;
if (strrchr(p, '\\')) p = strrchr(p, '\\') + 1;
if (strlen(p) == 0) p = DEFAULT_TMP_NAME;
strcat(FoutTmpName, p);
#ifdef __MSDOS__
if ((Fout = fopen(FoutTmpName, "wb")) == NULL ||
setvbuf(Fout, NULL, _IOFBF, GIF_FILE_BUFFER_SIZE))/*Incr. stream buf.*/
#else
if ((Fout = fopen(FoutTmpName, "w")) == NULL)
#endif /* __MSDOS__ */
GIF_EXIT("Failed to open output.");
while (!feof(Fin)) {
if (putc(getc(Fin), Fout) == EOF)
GIF_EXIT("Failed to write output.");
}
fclose(Fin);
if (ftell(Fout) >= (long) MinFileSize) {
fclose(Fout);
unlink(*FileName);
if (rename(FoutTmpName, *FileName) != 0) {
strcpy(DefaultName, FullPath);
strcat(DefaultName, DEFAULT_OUT_NAME);
if (rename(FoutTmpName, DefaultName) == 0) {
sprintf(s, "Failed to rename out file - left as %s.",
DefaultName);
GIF_MESSAGE(s);
}
else {
unlink(FoutTmpName);
GIF_MESSAGE("Failed to rename out file - deleted.");
}
}
}
else {
fclose(Fout);
unlink(FoutTmpName);
GIF_MESSAGE("File too small - not renamed.");
}
}