1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/* Copyright (c) 1994 Burra Gopal, Udi Manber. All Rights Reserved. */
/*
* main_cast.c : uses functions in hash.c and cast.c to implement "cast".
*/
#include "defs.h"
#if ISO_CHAR_SET
#include <locale.h>
#endif
#include "dummysyscalls.c"
extern char **environ;
usage(progname)
char *progname;
{
fprintf(stderr, "\nThis is cast version %s. Copyright (c) %s, University of Arizona.\n\n", GLIMPSE_VERSION, GLIMPSE_DATE);
fprintf(stderr, "usage: %s [-help] [-F] [-H dir] [-V] [-d] [-e] [-o] [-r] [-s] [-y] sourcefiles\n", progname);
fprintf(stderr, "summary of options (for a more detailed version, see 'man cast'):\n");
fprintf(stderr, "-help: output this menu\n");
fprintf(stderr, "-d: DO NOT delete sourcefiles after compress\n");
fprintf(stderr, "-e: DO NOT compress for easy search\n");
fprintf(stderr, "-o: DO NOT overwrite the existing compressed file (if any)\n");
fprintf(stderr, "-r: compress recursively\n");
fprintf(stderr, "-s: proceed silently and output the names of the compressible files\n");
fprintf(stderr, "-y: DO NOT prompt and always overwrite when used without -o\n");
fprintf(stderr, "-F: expect NAMES of files on stdin instead of data if there are no sourcefiles\n");
fprintf(stderr, "-H dir: the directory for dictionaries is 'dir' (default ~)\n");
fprintf(stderr, "\n");
exit(1);
}
main(argc, argv)
int argc;
char *argv[];
{
char **filev;
int filec;
int i; /* counter on argc, and later, filec */
char hash_file[MAX_LINE_LEN];
char freq_file[MAX_LINE_LEN];
char comp_dir[MAX_LINE_LEN];
char name[MAX_LINE_LEN];
char outname[MAX_LINE_LEN];
char *home;
int FLAGS;
#if ISO_CHAR_SET
setlocale(LC_ALL, "");
#endif
filev = (char **)malloc(sizeof(char *) * argc);
memset(filev, '\0', sizeof(char *)*argc);
filec = 0;
comp_dir[0] = '\0';
hash_file[0] = '\0';
freq_file[0] = '\0';
FLAGS = 0;
FLAGS |= TC_ERRORMSGS | TC_REMOVE | TC_OVERWRITE | TC_EASYSEARCH;
/* Look at options */
i=1;
while (i < argc) {
if (filec == 0 && !strcmp(argv[i], "-d")) {
FLAGS &= ~TC_REMOVE;
i ++;
}
else if (filec == 0 && !strcmp(argv[i], "-V")) {
printf("\nThis is cast version %s, %s.\n\n", CAST_VERSION, CAST_DATE);
return 0;
}
else if (filec == 0 && !strcmp(argv[i], "-e")) {
FLAGS &= ~TC_EASYSEARCH;
i ++;
}
if (filec == 0 && !strcmp(argv[i], "-help")) {
return usage(argv[0]);
}
else if (filec == 0 && !strcmp(argv[i], "-o")) {
FLAGS &= ~TC_OVERWRITE;
i ++;
}
else if (filec == 0 && !strcmp(argv[i], "-r")) {
FLAGS |= TC_RECURSIVE;
i ++;
}
else if (filec == 0 && !strcmp(argv[i], "-s")) {
FLAGS |= TC_SILENT;
i ++;
}
else if (filec == 0 && !strcmp(argv[i], "-y")) {
FLAGS |= TC_NOPROMPT;
i ++;
}
else if(filec == 0 && !strcmp(argv[1], "-F")) {
FLAGS |= TC_FILENAMESONSTDIN;
i ++;
}
else if (filec == 0 && !strcmp(argv[i], "-H")) {
if (i + 1 >= argc) {
fprintf(stderr, "%s: directory not specified after -H\n", argv[0]);
return usage(argv[0]);
}
strcpy(comp_dir, argv[i+1]);
i+=2;
}
else {
filev[filec++] = argv[i++];
}
}
if (comp_dir[0] == '\0') {
if ((home = (char *)getenv("HOME")) == NULL) {
getcwd(comp_dir, MAXNAME-1);
fprintf(stderr, "using working-directory '%s' to locate index\n", comp_dir);
}
else strncpy(comp_dir, home, MAXNAME);
}
strcpy(hash_file, comp_dir);
strcat(hash_file, "/");
strcat(hash_file, DEF_HASH_FILE);
strcpy(freq_file, comp_dir);
strcat(freq_file, "/");
strcat(freq_file, DEF_FREQ_FILE);
if (!initialize_tcompress(hash_file, freq_file, FLAGS)) exit(2);
if (FLAGS & TC_SILENT) FLAGS &= ~TC_ERRORMSGS;
/* now compress each file in filev array: if no files specified, compress stdin and put it on stdout */
if (filec == 0) {
if (FLAGS & TC_FILENAMESONSTDIN) {
while (fgets(name, MAX_LINE_LEN, stdin) == name) {
tcompress_file(name, outname, FLAGS);
}
}
else tcompress(stdin, -1, stdout, -1, FLAGS);
}
else for (i=0; i<filec; i++) {
strcpy(name, filev[i]);
tcompress_file(name, outname, FLAGS);
}
return 0;
}
|
