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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 #ifndef _WIN32
     27 #include <unistd.h>
     28 #endif
     29 
     30 #define PATHMAX 4096
     31 extern char executable_path[];
     32 
     33 TEST_IMPL(get_currentexe) {
     34 /* TODO(gengjiawen): Fix test on QEMU. */
     35 #if defined(__QEMU__)
     36   RETURN_SKIP("Test does not currently work in QEMU");
     37 #endif
     38 #if defined(__OpenBSD__)
     39   RETURN_SKIP("Test does not currently work in OpenBSD");
     40 #endif
     41 
     42   char buffer[PATHMAX];
     43   char path[PATHMAX];
     44   size_t size;
     45   char* match;
     46   int r;
     47 
     48   size = sizeof(buffer) / sizeof(buffer[0]);
     49   r = uv_exepath(buffer, &size);
     50   ASSERT(!r);
     51 
     52 #ifdef _WIN32
     53   snprintf(path, sizeof(path), "%s", executable_path);
     54 #else
     55   ASSERT_NOT_NULL(realpath(executable_path, path));
     56 #endif
     57 
     58   match = strstr(buffer, path);
     59   /* Verify that the path returned from uv_exepath is a subdirectory of
     60    * executable_path.
     61    */
     62   ASSERT(match && !strcmp(match, path));
     63   ASSERT_EQ(size, strlen(buffer));
     64 
     65   /* Negative tests */
     66   size = sizeof(buffer) / sizeof(buffer[0]);
     67   r = uv_exepath(NULL, &size);
     68   ASSERT_EQ(r, UV_EINVAL);
     69 
     70   r = uv_exepath(buffer, NULL);
     71   ASSERT_EQ(r, UV_EINVAL);
     72 
     73   size = 0;
     74   r = uv_exepath(buffer, &size);
     75   ASSERT_EQ(r, UV_EINVAL);
     76 
     77   memset(buffer, -1, sizeof(buffer));
     78 
     79   size = 1;
     80   r = uv_exepath(buffer, &size);
     81   ASSERT_OK(r);
     82   ASSERT_OK(size);
     83   ASSERT_EQ(buffer[0], '\0');
     84 
     85   memset(buffer, -1, sizeof(buffer));
     86 
     87   size = 2;
     88   r = uv_exepath(buffer, &size);
     89   ASSERT_OK(r);
     90   ASSERT_EQ(1, size);
     91   ASSERT_NE(buffer[0], '\0');
     92   ASSERT_EQ(buffer[1], '\0');
     93 
     94   /* Verify uv_exepath is not affected by uv_set_process_title(). */
     95   r = uv_set_process_title("foobar");
     96   ASSERT_OK(r);
     97   size = sizeof(buffer);
     98   r = uv_exepath(buffer, &size);
     99   ASSERT_OK(r);
    100 
    101   match = strstr(buffer, path);
    102   /* Verify that the path returned from uv_exepath is a subdirectory of
    103    * executable_path.
    104    */
    105   ASSERT_NOT_NULL(match);
    106   ASSERT_STR_EQ(match, path);
    107   ASSERT_EQ(size, strlen(buffer));
    108   return 0;
    109 }
    110