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1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2  *
3  * Permission is hereby granted, free of charge, to any person obtaining a copy
4  * of this software and associated documentation files (the "Software"), to
5  * deal in the Software without restriction, including without limitation the
6  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7  * sell copies of the Software, and to permit persons to whom the Software is
8  * furnished to do so, subject to the following conditions:
9  *
10  * The above copyright notice and this permission notice shall be included in
11  * all copies or substantial portions of the Software.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19  * IN THE SOFTWARE.
20  */
21 
22 #include "uv.h"
23 #include "task.h"
24 #include <string.h>
25 
26 
set_title(const char * title)27 static void set_title(const char* title) {
28   char buffer[512];
29   int err;
30 
31   err = uv_get_process_title(buffer, sizeof(buffer));
32   ASSERT(err == 0);
33 
34   err = uv_set_process_title(title);
35   ASSERT(err == 0);
36 
37   err = uv_get_process_title(buffer, sizeof(buffer));
38   ASSERT(err == 0);
39 
40   ASSERT(strcmp(buffer, title) == 0);
41 }
42 
43 
uv_get_process_title_edge_cases(void)44 static void uv_get_process_title_edge_cases(void) {
45   char buffer[512];
46   int r;
47 
48   /* Test a NULL buffer */
49   r = uv_get_process_title(NULL, 100);
50   ASSERT(r == UV_EINVAL);
51 
52   /* Test size of zero */
53   r = uv_get_process_title(buffer, 0);
54   ASSERT(r == UV_EINVAL);
55 
56   /* Test for insufficient buffer size */
57   r = uv_get_process_title(buffer, 1);
58   ASSERT(r == UV_ENOBUFS);
59 }
60 
61 
TEST_IMPL(process_title)62 TEST_IMPL(process_title) {
63 #if defined(__sun) || defined(__CYGWIN__) || defined(__MSYS__) || \
64     defined(__PASE__)
65   RETURN_SKIP("uv_(get|set)_process_title is not implemented.");
66 #endif
67 
68   /* Check for format string vulnerabilities. */
69   set_title("%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s");
70   set_title("new title");
71 
72   /* Check uv_get_process_title() edge cases */
73   uv_get_process_title_edge_cases();
74 
75   return 0;
76 }
77 
78 
exit_cb(uv_process_t * process,int64_t status,int signo)79 static void exit_cb(uv_process_t* process, int64_t status, int signo) {
80   ASSERT(status == 0);
81   ASSERT(signo == 0);
82   uv_close((uv_handle_t*) process, NULL);
83 }
84 
85 
TEST_IMPL(process_title_big_argv)86 TEST_IMPL(process_title_big_argv) {
87   uv_process_options_t options;
88   uv_process_t process;
89   size_t exepath_size;
90   char exepath[1024];
91   char jumbo[512];
92   char* args[5];
93 
94 #ifdef _WIN32
95   /* Remove once https://github.com/libuv/libuv/issues/2667 is fixed. */
96   uv_set_process_title("run-tests");
97 #endif
98 
99   exepath_size = sizeof(exepath) - 1;
100   ASSERT(0 == uv_exepath(exepath, &exepath_size));
101   exepath[exepath_size] = '\0';
102 
103   memset(jumbo, 'x', sizeof(jumbo) - 1);
104   jumbo[sizeof(jumbo) - 1] = '\0';
105 
106   /* Note: need to pass three arguments, not two, otherwise
107    * run-tests.c thinks it's the name of a test to run.
108    */
109   args[0] = exepath;
110   args[1] = "process_title_big_argv_helper";
111   args[2] = jumbo;
112   args[3] = jumbo;
113   args[4] = NULL;
114 
115   memset(&options, 0, sizeof(options));
116   options.file = exepath;
117   options.args = args;
118   options.exit_cb = exit_cb;
119 
120   ASSERT(0 == uv_spawn(uv_default_loop(), &process, &options));
121   ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT));
122 
123   MAKE_VALGRIND_HAPPY();
124   return 0;
125 }
126 
127 
128 /* Called by process_title_big_argv_helper. */
process_title_big_argv(void)129 void process_title_big_argv(void) {
130   char buf[256] = "fail";
131 
132   /* Return value deliberately ignored. */
133   uv_get_process_title(buf, sizeof(buf));
134   ASSERT(0 != strcmp(buf, "fail"));
135 }
136