gno/usr.orca.bin/udl/udlunix.c
gdr-ftp 25acdd5de9 common.c common.h udlgs.c udlunix.c:
Replace use of getwd(3) with getcwd(3); it's safer.
1999-01-15 07:36:15 +00:00

220 lines
5.1 KiB
C

/*
* udl - Convert EOL formats freely between MS-DOS (CR/LF), Unix/Amiga (LF),
* and Apple (CR).
*
* Unix specific routines.
*
* $Id: udlunix.c,v 1.11 1999/01/15 07:36:15 gdr-ftp Exp $
*
* Copyright (c) 1993-1995 Soenke Behrens, Devin Reade
*/
#include "common.h"
extern char *strdup(const char *);
int main(int argc,char *argv[]) {
FILE *infile, *outfile;
int Tunix = FALSE;
int Messy = FALSE;
int GS = FALSE;
int careful = FALSE;
int converted;
int c;
int R_flag = FALSE;
verbose = FALSE;
program_name = NULL;
tempfile = NULL;
current_file = NULL;
in_buffer = out_buffer = NULL;
pathSlotsUsed = 0;
pathSlots = 0;
pathList = NULL;
*currentDirectory = '\0';
recursionDepth=0;
/* In case of exit(), free the mem I allocated */
#ifdef HAS_ATEXIT
atexit (cleanup);
#endif
if ((program_name = strdup (argv[0])) == NULL) {
fprintf(stderr,"%s: memory allocation failure\n",argv[0]);
exit (EXIT_FAILURE);
}
if (argc < 2) {
usage();
exit (EXIT_FAILURE);
}
/* Get and process arguments */
opterr = 1;
while ((c = getopt (argc, argv, "pvugmRVh")) != EOF) {
switch (c) {
case 'v':
verbose = TRUE;
break;
case 'p':
careful = TRUE;
break;
case 'u':
if (Tunix == TRUE || Messy == TRUE || GS == TRUE) {
fprintf(stderr, "%s: You may not "
"specify more than one conversion option\n",program_name);
exit (EXIT_FAILURE);
}
Tunix = TRUE;
break;
case 'm':
if (Tunix == TRUE || Messy == TRUE || GS == TRUE) {
fprintf(stderr, "%s: You may not specify more than one "
"conversion option\n",program_name);
exit (EXIT_FAILURE);
}
Messy = TRUE;
break;
case 'g':
if (Tunix == TRUE || Messy == TRUE || GS == TRUE) {
fprintf(stderr, "%s: You may not specify more than one "
"conversion option\n",program_name);
exit (EXIT_FAILURE);
}
GS = TRUE;
break;
case 'R':
R_flag++;
break;
case 'V':
printf ("%s %s\n",program_name,UDL_VERSION);
exit (EXIT_FAILURE);
case '?':
case 'h':
usage();
exit (EXIT_FAILURE);
default:
fprintf (stderr, "%s: Internal getopt error\n", program_name);
exit (EXIT_FAILURE);
break;
}
}
/* no files specified */
if (optind == argc) {
usage();
exit (EXIT_FAILURE);
}
if (Tunix == FALSE && GS == FALSE && Messy == FALSE) {
fprintf(stderr,"%s: You have to specify a destination "
"format.\n",program_name);
exit (EXIT_FAILURE);
}
if (verbose == TRUE) {
printf ("%s %s\n",program_name,UDL_VERSION);
}
/* Now process the files I got */
if ((in_buffer = malloc(BUFFERSIZE+1)) == NULL ||
(out_buffer = malloc(BUFFERSIZE+1)) == NULL) {
fprintf(stderr,"%s: Unable to buffer files\n",program_name);
exit (EXIT_FAILURE);
}
/* save the directory we're in */
if (getcwd(rootdir, MAXPATHLEN)==NULL) {
fprintf(stderr,"%s: getcwd failed for .: %s\n",
program_name, strerror(errno));
exit (EXIT_FAILURE);
}
/* set the directory separator character. */
dirbrk = '/';
/* build the list of files to process */
for (; optind<argc; optind++) {
build_file_list(argv[optind],R_flag);
chdir(rootdir);
*currentDirectory = '\0';
}
/* files were all directories and no -R flag given */
if (!pathList) {
if (verbose) printf("%s: no files to process\n",program_name);
exit(EXIT_SUCCESS);
}
for (c=0; pathList[c]; c++) {
if((current_file = strdup(pathList[c])) == NULL) {
fprintf(stderr,"%s: memory allocation failure\n", program_name);
exit (EXIT_FAILURE);
}
if (verbose == TRUE) {
printf("%s: Working on %s\n",program_name,
current_file);
}
infile = tryopen(current_file,"r+b");
tempfile = Mktemp(strcat(get_path(current_file), "udltmpXX"));
outfile = tryopen(tempfile,"wb");
if (careful) {
converted = TRUE; /* always */
if (GS)
convert_gs(infile,outfile);
else if (Tunix)
convert_tunix(infile,outfile);
else
convert_messy(infile,outfile);
} else {
if (GS)
converted = convert_fast_gs(infile,outfile);
else if (Tunix)
converted = convert_fast_tunix(infile,outfile);
else
converted = convert_fast_messy(infile,outfile);
}
if (fclose (infile) == EOF || fclose (outfile) == EOF) {
perror ("closing files");
exit (EXIT_FAILURE);
}
if (converted) { /* Temp file contains converted data */
if (remove (current_file) != 0) {
perror ("removing original file");
exit (EXIT_FAILURE);
}
if (rename (tempfile,current_file) != 0) {
perror ("cannot rename temporary file");
exit (EXIT_FAILURE);
}
} else
remove (tempfile);
free (tempfile); tempfile = NULL;
free(current_file);
current_file = NULL;
} /* for (c=0; pathList[c]; c++) */
return (EXIT_SUCCESS);
}
/* End Of File */