1 // Copyright 2014 Google LLC
2 //
3 // Redistribution and use in source and binary forms, with or without
4 // modification, are permitted provided that the following conditions are
5 // met:
6 //
7 // * Redistributions of source code must retain the above copyright
8 // notice, this list of conditions and the following disclaimer.
9 // * Redistributions in binary form must reproduce the above
10 // copyright notice, this list of conditions and the following disclaimer
11 // in the documentation and/or other materials provided with the
12 // distribution.
13 // * Neither the name of Google LLC nor the names of its
14 // contributors may be used to endorse or promote products derived from
15 // this software without specific prior written permission.
16 //
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 #ifdef HAVE_CONFIG_H
30 #include <config.h> // Must come first
31 #endif
32
33 #include <stdio.h>
34 #include <sys/wait.h>
35 #include <unistd.h>
36
37 namespace google_breakpad {
38
LaunchReporter(const char * reporter_executable_path,const char * config_file_path)39 void LaunchReporter(const char *reporter_executable_path,
40 const char *config_file_path) {
41 const char* argv[] = { reporter_executable_path, config_file_path, NULL };
42
43 // Launch the reporter
44 pid_t pid = fork();
45
46 if (pid == -1) {
47 perror("fork");
48 fprintf(stderr, "Failed to fork reporter process\n");
49 return;
50 }
51
52 // If we're in the child, load in our new executable and run.
53 // The parent will not wait for the child to complete.
54 if (pid == 0) {
55 execv(argv[0], (char* const*)argv);
56 perror("exec");
57 fprintf(stderr,
58 "Failed to launch reporter process from path %s\n",
59 reporter_executable_path);
60 unlink(config_file_path); // launch failed - get rid of config file
61 _exit(1);
62 }
63
64 // Wait until the Reporter child process exits.
65 //
66
67 // We'll use a timeout of one minute.
68 int timeout_count = 60; // 60 seconds
69
70 while (timeout_count-- > 0) {
71 int status;
72 pid_t result = waitpid(pid, &status, WNOHANG);
73
74 if (result == 0) {
75 // The child has not yet finished.
76 sleep(1);
77 } else if (result == -1) {
78 // error occurred.
79 break;
80 } else {
81 // child has finished
82 break;
83 }
84 }
85 }
86
87 } // namespace google_breakpad
88