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
|
#include <mruby.h>
#ifdef MRB_NO_STDIO
# error mruby-bin-strip conflicts 'MRB_NO_STDIO' in your build configuration
#endif
#include <stdlib.h>
#include <string.h>
#include <mruby/irep.h>
#include <mruby/dump.h>
#include <mruby/internal.h>
struct strip_args {
int argc_start;
int argc;
char **argv;
uint8_t flags;
};
static void
print_usage(const char *f)
{
printf("Usage: %s [switches] irepfiles\n", f);
printf("switches:\n");
printf(" -l, --lvar remove LVAR section too.\n");
}
static int
parse_args(int argc, char **argv, struct strip_args *args)
{
int i;
args->argc_start = 0;
args->argc = argc;
args->argv = argv;
args->flags = 0;
for (i = 1; i < argc; i++) {
const size_t len = strlen(argv[i]);
if (len >= 2 && argv[i][0] == '-') {
switch (argv[i][1]) {
case 'l':
args->flags = MRB_DUMP_NO_LVAR;
break;
case '-':
if (strncmp((*argv) + 2, "lvar", len) == 0) {
args->flags = MRB_DUMP_NO_LVAR;
break;
}
default:
return -1;
}
}
else {
break;
}
}
args->argc_start = i;
return i;
}
static int
strip(mrb_state *mrb, struct strip_args *args)
{
int i;
for (i = args->argc_start; i < args->argc; i++) {
char *filename;
FILE *rfile;
mrb_irep *irep;
FILE *wfile;
int dump_result;
filename = args->argv[i];
rfile = fopen(filename, "rb");
if (rfile == NULL) {
fprintf(stderr, "can't open file for reading %s\n", filename);
return EXIT_FAILURE;
}
irep = mrb_read_irep_file(mrb, rfile);
fclose(rfile);
if (irep == NULL) {
fprintf(stderr, "can't read irep file %s\n", filename);
return EXIT_FAILURE;
}
wfile = fopen(filename, "wb");
if (wfile == NULL) {
fprintf(stderr, "can't open file for writing %s\n", filename);
mrb_irep_decref(mrb, irep);
return EXIT_FAILURE;
}
/* debug flag must always be false */
dump_result = mrb_dump_irep_binary(mrb, irep, args->flags, wfile);
fclose(wfile);
mrb_irep_decref(mrb, irep);
if (dump_result != MRB_DUMP_OK) {
fprintf(stderr, "error occurred during dumping %s\n", filename);
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
int
main(int argc, char **argv)
{
struct strip_args args;
int args_result;
mrb_state *mrb;
int ret;
if (argc <= 1) {
printf("no files to strip\n");
print_usage(argv[0]);
return EXIT_FAILURE;
}
args_result = parse_args(argc, argv, &args);
if (args_result < 0) {
print_usage(argv[0]);
return EXIT_FAILURE;
}
mrb = mrb_open_core(mrb_default_allocf, NULL);
if (mrb == NULL) {
fputs("Invalid mrb_state, exiting mruby-strip\n", stderr);
return EXIT_FAILURE;
}
ret = strip(mrb, &args);
mrb_close(mrb);
return ret;
}
|
