src/util/u_process.c

   1 /*
   2  * Copyright © 2003 Felix Kuehling
   3  * Copyright © 2018 Advanced Micro Devices, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining
   7  * a copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  15  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  16  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  17  * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
  18  * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * The above copyright notice and this permission notice (including the
  24  * next paragraph) shall be included in all copies or substantial portions
  25  * of the Software.
  26  */
  27
  28 #include "u_process.h"
  29 #include <string.h>
  30 #include <errno.h>
  31 #include <stdlib.h>
  32
  33 #undef GET_PROGRAM_NAME
  34
  35 #if (defined(__GNU_LIBRARY__) || defined(__GLIBC__)) && !defined(__UCLIBC__)
  36 #    if !defined(__GLIBC__) || (__GLIBC__ < 2)
  37 /* These aren't declared in any libc5 header */
  38 extern char *program_invocation_name, *program_invocation_short_name;
  39 #    endif
  40 static const char *
  41 __getProgramName()
  42 {
  43     char * arg = strrchr(program_invocation_name, '/');
  44     if (arg)
  45         return arg+1;
  46     else
  47         return program_invocation_name;
  48 }
  49 #    define GET_PROGRAM_NAME() __getProgramName()
  50 #elif defined(__CYGWIN__)
  51 #    define GET_PROGRAM_NAME() program_invocation_short_name
  52 #elif defined(__FreeBSD__) && (__FreeBSD__ >= 2)
  53 #    include <osreldate.h>
  54 #    if (__FreeBSD_version >= 440000)
  55 #        define GET_PROGRAM_NAME() getprogname()
  56 #    endif
  57 #elif defined(__NetBSD__) && defined(__NetBSD_Version__) && (__NetBSD_Version__ >= 106000100)
  58 #    define GET_PROGRAM_NAME() getprogname()
  59 #elif defined(__DragonFly__)
  60 #    define GET_PROGRAM_NAME() getprogname()
  61 #elif defined(__APPLE__)
  62 #    define GET_PROGRAM_NAME() getprogname()
  63 #elif defined(ANDROID)
  64 #    define GET_PROGRAM_NAME() getprogname()
  65 #elif defined(__sun)
  66 /* Solaris has getexecname() which returns the full path - return just
  67    the basename to match BSD getprogname() */
  68 #    include <libgen.h>
  69
  70 static const char *
  71 __getProgramName()
  72 {
  73     static const char *progname;
  74
  75     if (progname == NULL) {
  76         const char *e = getexecname();
  77         if (e != NULL) {
  78             /* Have to make a copy since getexecname can return a readonly
  79                string, but basename expects to be able to modify its arg. */
  80             char *n = strdup(e);
  81             if (n != NULL) {
  82                 progname = basename(n);
  83             }
  84         }
  85     }
  86     return progname;
  87 }
  88
  89 #    define GET_PROGRAM_NAME() __getProgramName()
  90 #endif
  91
  92 #if !defined(GET_PROGRAM_NAME)
  93 #    if defined(__OpenBSD__) || defined(NetBSD) || defined(__UCLIBC__) || defined(ANDROID)
  94 /* This is a hack. It's said to work on OpenBSD, NetBSD and GNU.
  95  * Rogelio M.Serrano Jr. reported it's also working with UCLIBC. It's
  96  * used as a last resort, if there is no documented facility available. */
  97 static const char *
  98 __getProgramName()
  99 {
 100     extern const char *__progname;
 101     char * arg = strrchr(__progname, '/');
 102     if (arg)
 103         return arg+1;
 104     else
 105         return __progname;
 106 }
 107 #        define GET_PROGRAM_NAME() __getProgramName()
 108 #    else
 109 #        define GET_PROGRAM_NAME() ""
 110 #        pragma message ( "Warning: Per application configuration won't work with your OS version." )
 111 #    endif
 112 #endif
 113
 114 const char *
 115 util_get_process_name(void)
 116 {
 117    return GET_PROGRAM_NAME();
 118 }