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- /*****************************************************************************
- * "Gif-Lib" - Yet another gif library. *
- * *
- * Written by: Gershon Elber IBM PC 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. *
- * -s minsize : the minimum file size to keep it. *
- * -h : on line help. *
- ******************************************************************************
- * History: *
- * 7 Jul 89 - Version 1.0 by Gershon Elber. *
- *****************************************************************************/
-
- #include <io.h>
- #include <fcntl.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <ctype.h>
- #include <alloc.h>
- #include <string.h>
- #include "gif_lib.h"
- #include "getarg.h"
-
- #define PROGRAM_NAME "GifInto"
- #define VERSION "ß Version 1.0, "
-
- #define DEFAULT_MIN_FILE_SIZE 14 /* More than GIF stamp + screen desc. */
- #define DEFAULT_OUT_NAME "GifInto.Gif"
-
- extern unsigned int
- _stklen = 16384; /* Increase default stack size */
-
- static char
- *VersionStr =
- PROGRAM_NAME
- " IBMPC "
- VERSION
- " Gershon Elber, "
- __DATE__ ", " __TIME__ "\n"
- "(C) Copyright 1989 Gershon Elber, Non commercial use only.\n";
- static char
- *CtrlStr =
- PROGRAM_NAME
- " s%-MinFileSize!d h%- GifFile!*s";
- static char
- *ProgramName;
- 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, FoutTmpName[80], FullPath[80], DefaultName[80],
- s[80], *p;
- FILE *Fin, *Fout;
-
- if (strlen(ProgramName = argv[0]) == 0) /* DOS 3.x only! */
- ProgramName = PROGRAM_NAME; /* Do something reasonable for 2.x */
-
- if ((Error = GAGetArgs(argc, argv, CtrlStr,
- &MinSizeFlag, &MinFileSize, &HelpFlag,
- &NumFiles, &FileName)) != FALSE ||
- (NumFiles > 1 && !HelpFlag)) {
- if (Error) GAPrintErrMsg(Error);
- else
- if (NumFiles != 1)
- MESSAGE("Error in command line parsing - one GIF file please\n");
- GAPrintHowTo(CtrlStr);
- exit(1);
- }
-
- if (HelpFlag) {
- fprintf(stderr, VersionStr);
- GAPrintHowTo(CtrlStr);
- exit(0);
- }
-
- /* Open the stdin in binary mode and increase its buffer size: */
- setmode(0, O_BINARY); /* Make sure it is in binary mode */
- if ((Fin = fdopen(0, "rb")) == NULL) /* Make it into a stream: */
- EXIT("Failed to open input\n");
- if (setvbuf(Fin, NULL, _IOFBF, FILE_BUFFER_SIZE)) /* Incr. stream buf */
- EXIT("Failed to open input\n");
-
- /* 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 */
- strcat(FoutTmpName, tmpnam(NULL));
-
- if ((Fout = fopen(FoutTmpName, "wb")) == NULL)
- EXIT("Failed to open output\n");
- if (setvbuf(Fout, NULL, _IOFBF, FILE_BUFFER_SIZE)) /* Incr. stream buf */
- EXIT("Failed to open output\n");
-
- while (!feof(Fin)) {
- if (putc(getc(Fin), Fout) == EOF)
- EXIT("Failed to write output\n");
- }
-
- 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\n",
- DefaultName);
- MESSAGE(s);
- }
- else {
- unlink(FoutTmpName);
- MESSAGE("Failed to rename out file - deleted\n");
- }
- }
- }
- else {
- fclose(Fout);
- unlink(FoutTmpName);
- MESSAGE("File too small - not renamed\n");
- }
- }
-