Mercurial > dovecot > core-2.2
view src/lib/hostpid.c @ 18137:3009a1a6f6d5
global: freshen copyright
Robomatically:
git ls-files | xargs perl -p -i -e 's/(\d+)-201[0-4]/$1-2015/g;s/ (201[0-4]) Dovecot/ $1-2015 Dovecot/'
Happy 2015 everyone!
Signed-off-by: Phil Carmody <phil@dovecot.fi>
author | Phil Carmody <phil@dovecot.fi> |
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date | Mon, 05 Jan 2015 22:20:10 +0200 |
parents | add8c00fb3cc |
children | 9e120590e0ef |
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/* Copyright (c) 2002-2015 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "hostpid.h" #include <stdlib.h> #include <unistd.h> #include <netdb.h> #define HOSTNAME_DISALLOWED_CHARS "/\r\n\t" const char *my_hostname = NULL; const char *my_pid = NULL; static char *my_hostname_dup = NULL; static char *my_domain = NULL; void hostpid_init(void) { static char pid[MAX_INT_STRLEN]; char hostname[256]; const char *value; /* allow calling hostpid_init() multiple times to reset hostname */ i_free_and_null(my_hostname_dup); i_free_and_null(my_domain); value = getenv(MY_HOSTNAME_ENV); if (value == NULL) { if (gethostname(hostname, sizeof(hostname)-1) < 0) i_fatal("gethostname() failed: %m"); hostname[sizeof(hostname)-1] = '\0'; value = hostname; } if (value[0] == '\0' || strcspn(value, HOSTNAME_DISALLOWED_CHARS) != strlen(value)) i_fatal("Invalid system hostname: '%s'", value); my_hostname_dup = i_strdup(value); my_hostname = my_hostname_dup; i_snprintf(pid, sizeof(pid), "%lld", (long long)getpid()); my_pid = pid; } void hostpid_deinit(void) { i_free(my_hostname_dup); i_free(my_domain); } const char *my_hostdomain(void) { struct hostent *hent; const char *name; if (my_domain == NULL) { name = getenv(MY_HOSTDOMAIN_ENV); if (name == NULL) { hent = gethostbyname(my_hostname); name = hent != NULL ? hent->h_name : NULL; if (name == NULL) { /* failed, use just the hostname */ name = my_hostname; } } my_domain = i_strdup(name); } return my_domain; }