Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib/process-title.c @ 9403:cf291558ce28 HEAD

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process_title_set(): Don't include executable name in setproctitle(), it's done internally.
author Timo Sirainen <tss@iki.fi>
date Wed, 30 Sep 2009 17:07:12 -0400
parents b9faf4db2a9f
children 00cd9aacd03c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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b9faf4db2a9f Updated copyright notices to include year 2009.
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1 /* Copyright (c) 2002-2009 Dovecot authors, see the included COPYING file */
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2
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3 /*
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4 LINUX_PROCTITLE_HACK code from:
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5 http://lightconsulting.com/~thalakan/process-title-notes.html
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6 */
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7
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8 #include "lib.h"
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9 #include "process-title.h"
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10
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11 #include <stdlib.h> /* NetBSD, OpenBSD */
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12 #include <unistd.h> /* FreeBSD */
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13
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14 /* NOTE: This really is a horrible hack, I don't recommend using it for
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15 anything else than debugging. */
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16 /*#define LINUX_PROCTITLE_HACK*/
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17
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18 static char *process_name = NULL;
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19
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20 #ifdef LINUX_PROCTITLE_HACK
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21 static char *process_title;
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22 static size_t process_title_len;
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23
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24 static void linux_proctitle_init(char *argv[], char *envp[])
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25 {
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26 extern char **environ;
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27 char **p;
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28 int i;
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29
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30 /* copy environment elsewhere */
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31 for (i = 0; envp[i] != NULL; i++)
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32 ;
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33
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34 if ((p = malloc((i + 1) * sizeof(char *))) == NULL)
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35 i_fatal_status(FATAL_OUTOFMEM, "malloc() failed: %m");
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36 environ = p;
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37
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38 for (i = 0; envp[i] != NULL; i++) {
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39 if ((environ[i] = strdup(envp[i])) == NULL)
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40 i_fatal_status(FATAL_OUTOFMEM, "strdup() failed: %m");
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41 }
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42 environ[i] = NULL;
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43
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44 /* memory is allocated so that argv[] comes first, environment next.
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45 Calculate the max. size for process name with by checking the
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46 address for last environment and it's length. */
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47 process_title = argv[0];
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48 process_title_len = (size_t) (envp[i-1] - argv[0]) + strlen(envp[i-1]);
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49 }
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50
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51 static void linux_proctitle_set(const char *title)
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52 {
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53 i_strocpy(process_title, title, process_title_len);
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54 }
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55
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56 #endif
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57
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58 void process_title_init(char *argv[], char *envp[] ATTR_UNUSED)
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59 {
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60 #ifdef LINUX_PROCTITLE_HACK
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61 linux_proctitle_init(argv, envp);
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62 #endif
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63 process_name = argv[0];
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64 }
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65
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66 void process_title_set(const char *title ATTR_UNUSED)
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67 {
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68 i_assert(process_name != NULL);
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69
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70 #ifdef HAVE_SETPROCTITLE
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71 if (title == NULL)
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72 setproctitle(NULL);
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73 else
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74 setproctitle("%s", title);
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75 #elif defined(LINUX_PROCTITLE_HACK)
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76 linux_proctitle_set(t_strconcat(process_name, " ", title, NULL));
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77 #endif
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78 }
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79