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
|
/*******************************************************************/
/* slibtool: a skinny libtool implementation, written in C */
/* Copyright (C) 2016 Z. Gilboa */
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
#include <stdlib.h>
#include <limits.h>
#include <unistd.h>
#include <stdbool.h>
#include <sys/wait.h>
#include <slibtool/slibtool.h>
#include "slibtool_spawn_impl.h"
static int slbt_archive_import_child(
char * program,
int fd[2])
{
char * argv[3];
argv[0] = program;
argv[1] = "-M";
argv[2] = 0;
close(fd[1]);
close(0);
if (dup(fd[0]) == 0)
execvp(program,argv);
exit(EXIT_FAILURE);
return -1;
}
int slbt_archive_import(
const struct slbt_driver_ctx * dctx,
struct slbt_exec_ctx * ectx,
char * dstarchive,
char * srcarchive)
{
pid_t pid;
int ret;
int code;
int fd[2];
FILE * fout;
char program[PATH_MAX];
if ((size_t)snprintf(program,sizeof(program),"%s",
dctx->cctx->host.ar) >= sizeof(program))
return -1;
if (pipe(fd))
return -1;
if ((pid = fork()) < 0) {
close(fd[0]);
close(fd[1]);
return -1;
}
if (pid == 0)
return slbt_archive_import_child(
program,
fd);
ectx->pid = pid;
if ((fout = fdopen(fd[1],"a"))) {
ret = (fprintf(
fout,
"OPEN %s\n"
"ADDLIB %s\n"
"SAVE\n"
"END\n",
dstarchive,
srcarchive) < 0)
? -1 : 0;
fclose(fout);
close(fd[0]);
} else {
ret = -1;
close(fd[0]);
close(fd[1]);
}
code = waitpid(
pid,
&ectx->exitcode,
0);
return ret || (code != pid) || ectx->exitcode
? -1 : 0;
}
|
