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1 /* m_sync.c - synchronize message sequences */
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2 #ifndef lint
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3 static char ident[] = "@(#)$Id$";
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4 #endif /* lint */
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5
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6 #include "../h/mh.h"
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7 #include <stdio.h>
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8 #include <signal.h>
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9 #ifndef sigmask
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10 #define sigmask(s) (1 << ((s) - 1))
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11 #endif /* not sigmask */
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12
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13
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14 /* decision logic
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15 1. public and folder readonly: make it private
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16 2a. public: add it to the sequences file
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17 2b. private: add it to the profile
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18 */
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19
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20
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21 void m_sync (mp)
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22 register struct msgs *mp;
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23 {
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24 int bits;
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25 register int i;
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26 register char *cp;
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27 char flags,
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28 attr[BUFSIZ],
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29 seq[BUFSIZ * 2];
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30 register FILE *fp;
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31 #ifndef BSD42
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32 TYPESIG (*hstat) (), (*istat) (), (*qstat) (), (*tstat) ();
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33 #else /* BSD42 */
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34 int smask;
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35 #endif /* BSD42 */
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36
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37 if (!(mp -> msgflags & SEQMOD))
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38 return;
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39 mp -> msgflags &= ~SEQMOD;
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40
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41 m_getdefs ();
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42 /* (void) sprintf (seq, "%s/%s", mp -> foldpath, mh_seq); */
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43 (void) sprintf (seq, "%s/%s", mp -> foldpath, mh_seq? mh_seq: "");
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44 bits = FFATTRSLOT;
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45 fp = NULL;
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46
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47 flags = mp -> msgflags;
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48 if (mh_seq == NULL || *mh_seq == 0)
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49 mp -> msgflags |= READONLY;
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50
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51 for (i = 0; mp -> msgattrs[i]; i++) {
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52 (void) sprintf (attr, "atr-%s-%s", mp -> msgattrs[i], mp -> foldpath);
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53 if (mp -> msgflags & READONLY
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54 || mp -> attrstats & (1 << (bits + i))) {
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55 priv: ;
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56 if (cp = m_seq (mp, mp -> msgattrs[i]))
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57 m_replace (attr, cp);
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58 else
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59 (void) m_delete (attr);
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60 }
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61 else {
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62 (void) m_delete (attr);
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63 if ((cp = m_seq (mp, mp -> msgattrs[i])) == NULL)
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64 continue;
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65 if (fp == NULL) {
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66 if ((fp = fopen (seq, "w")) == NULL
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67 && (unlink (seq) == NOTOK ||
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68 (fp = fopen (seq, "w")) == NULL)) {
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69 admonish (attr, "unable to write");
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70 goto priv;
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71 }
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72 #ifndef BSD42
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73 hstat = signal (SIGHUP, SIG_IGN);
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74 istat = signal (SIGINT, SIG_IGN);
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75 qstat = signal (SIGQUIT, SIG_IGN);
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76 tstat = signal (SIGTERM, SIG_IGN);
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77 #else /* BSD42 */
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78 smask = sigblock (sigmask (SIGHUP) | sigmask (SIGINT)
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79 | sigmask (SIGQUIT) | sigmask (SIGTERM));
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80 #endif /* BSD42 */
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81 }
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82 fprintf (fp, "%s: %s\n", mp -> msgattrs[i], cp);
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83 }
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84 }
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85
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86 if (fp) {
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87 (void) fclose (fp);
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88 #ifndef BSD42
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89 (void) signal (SIGHUP, hstat);
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90 (void) signal (SIGINT, istat);
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91 (void) signal (SIGQUIT, qstat);
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92 (void) signal (SIGTERM, tstat);
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93 #else /* BSD42 */
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94 (void) sigsetmask (smask);
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95 #endif /* BSD42 */
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96 }
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97 else
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98 if (!(mp -> msgflags & READONLY))
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99 (void) unlink (seq);
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100
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101 mp -> msgflags = flags;
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102 }
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