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6ec2e0f5 | 1 | /* Program name management. |
5e8754f9 | 2 | Copyright (C) 2016 Free Software Foundation, Inc. |
6ec2e0f5 SDJ |
3 | |
4 | This program is free software: you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 3 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
5e8754f9 | 15 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
6ec2e0f5 SDJ |
16 | |
17 | #include <config.h> | |
18 | ||
19 | /* Specification. */ | |
20 | #include "getprogname.h" | |
21 | ||
22 | #include <errno.h> /* get program_invocation_name declaration */ | |
23 | #include <stdlib.h> /* get __argv declaration */ | |
24 | ||
25 | #ifdef _AIX | |
26 | # include <unistd.h> | |
27 | # include <procinfo.h> | |
28 | # include <string.h> | |
29 | #endif | |
30 | ||
31 | #ifdef __MVS__ | |
32 | # ifndef _OPEN_SYS | |
33 | # define _OPEN_SYS | |
34 | # endif | |
35 | # include <string.h> | |
36 | # include <sys/ps.h> | |
37 | #endif | |
38 | ||
39 | #ifdef __hpux | |
40 | # include <unistd.h> | |
41 | # include <sys/param.h> | |
42 | # include <sys/pstat.h> | |
43 | # include <string.h> | |
44 | #endif | |
45 | ||
46 | #include "dirname.h" | |
47 | ||
48 | #ifndef HAVE_GETPROGNAME /* not Mac OS X, FreeBSD, NetBSD, OpenBSD >= 5.4, Cygwin */ | |
49 | char const * | |
50 | getprogname (void) | |
51 | { | |
52 | # if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME /* glibc, BeOS */ | |
53 | /* https://www.gnu.org/software/libc/manual/html_node/Error-Messages.html */ | |
54 | return program_invocation_short_name; | |
55 | # elif HAVE_DECL_PROGRAM_INVOCATION_NAME /* glibc, BeOS */ | |
56 | /* https://www.gnu.org/software/libc/manual/html_node/Error-Messages.html */ | |
57 | return last_component (program_invocation_name); | |
58 | # elif HAVE_GETEXECNAME /* Solaris */ | |
5e8754f9 | 59 | /* http://docs.oracle.com/cd/E19253-01/816-5168/6mbb3hrb1/index.html */ |
6ec2e0f5 SDJ |
60 | const char *p = getexecname (); |
61 | if (!p) | |
62 | p = "?"; | |
63 | return last_component (p); | |
64 | # elif HAVE_DECL___ARGV /* mingw, MSVC */ | |
65 | /* https://msdn.microsoft.com/en-us/library/dn727674.aspx */ | |
66 | const char *p = __argv && __argv[0] ? __argv[0] : "?"; | |
67 | return last_component (p); | |
68 | # elif HAVE_VAR___PROGNAME /* OpenBSD, QNX */ | |
5e8754f9 | 69 | /* http://man.openbsd.org/style.9 */ |
6ec2e0f5 SDJ |
70 | /* http://www.qnx.de/developers/docs/6.5.0/index.jsp?topic=%2Fcom.qnx.doc.neutrino_lib_ref%2Fp%2F__progname.html */ |
71 | /* Be careful to declare this only when we absolutely need it | |
72 | (OpenBSD 5.1), rather than when it's available. Otherwise, | |
73 | its mere declaration makes program_invocation_short_name | |
74 | malfunction (have zero length) with Fedora 25's glibc. */ | |
75 | extern char *__progname; | |
76 | const char *p = __progname; | |
77 | return p && p[0] ? p : "?"; | |
78 | # elif _AIX /* AIX */ | |
79 | /* Idea by Bastien ROUCARIÈS, | |
5e8754f9 SDJ |
80 | http://lists.gnu.org/archive/html/bug-gnulib/2010-12/msg00095.html |
81 | Reference: http:// | |
82 | ibm.biz/knowctr#ssw_aix_53/com.ibm.aix.basetechref/doc/basetrf1/getprocs.htm | |
6ec2e0f5 SDJ |
83 | */ |
84 | static char *p; | |
85 | static int first = 1; | |
86 | if (first) | |
87 | { | |
88 | first = 0; | |
89 | pid_t pid = getpid (); | |
90 | struct procentry64 procs; | |
91 | p = (0 < getprocs64 (&procs, sizeof procs, NULL, 0, &pid, 1) | |
92 | ? strdup (procs.pi_comm) | |
93 | : NULL); | |
94 | if (!p) | |
95 | p = "?"; | |
96 | } | |
97 | return p; | |
98 | # elif defined __hpux | |
99 | static char *p; | |
100 | static int first = 1; | |
101 | if (first) | |
102 | { | |
103 | first = 0; | |
104 | pid_t pid = getpid (); | |
105 | struct pst_status status; | |
106 | p = (0 < pstat_getproc (&status, sizeof status, 0, pid) | |
107 | ? strdup (status.pst_ucomm) | |
108 | : NULL); | |
109 | if (!p) | |
110 | p = "?"; | |
111 | } | |
112 | return p; | |
113 | # elif __MVS__ /* z/OS */ | |
114 | /* https://www.ibm.com/support/knowledgecenter/SSLTBW_2.1.0/com.ibm.zos.v2r1.bpxbd00/rtwgetp.htm */ | |
115 | static char *p = "?"; | |
116 | static int first = 1; | |
117 | if (first) | |
118 | { | |
119 | pid_t pid = getpid (); | |
120 | int token; | |
121 | W_PSPROC buf; | |
122 | first = 0; | |
123 | memset (&buf, 0, sizeof(buf)); | |
124 | buf.ps_cmdptr = (char *) malloc (buf.ps_cmdlen = PS_CMDBLEN_LONG); | |
125 | buf.ps_conttyptr = (char *) malloc (buf.ps_conttylen = PS_CONTTYBLEN); | |
126 | buf.ps_pathptr = (char *) malloc (buf.ps_pathlen = PS_PATHBLEN); | |
127 | if (buf.ps_cmdptr && buf.ps_conttyptr && buf.ps_pathptr) | |
128 | { | |
129 | for (token = 0; token >= 0; | |
130 | token = w_getpsent (token, &buf, sizeof(buf))) | |
131 | { | |
132 | if (token > 0 && buf.ps_pid == pid) | |
133 | { | |
134 | char *s = strdup (last_component (buf.ps_pathptr)); | |
135 | if (s) | |
136 | p = s; | |
137 | break; | |
138 | } | |
139 | } | |
140 | } | |
141 | free (buf.ps_cmdptr); | |
142 | free (buf.ps_conttyptr); | |
143 | free (buf.ps_pathptr); | |
144 | } | |
145 | return p; | |
146 | # else | |
147 | # error "getprogname module not ported to this OS" | |
148 | # endif | |
149 | } | |
150 | ||
151 | #endif |