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0
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1 /* m_gmsg.c - read a folder */
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2 #ifndef lint
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12
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3 static char ident[] = "@(#)$Id: m_gmsg.c,v 1.1.1.1 2005/04/18 14:46:06 kono Exp $";
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0
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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 "../h/local.h"
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8 #include <stdio.h>
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9
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10
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11 #define NINFO (MAXFOLDER / 5) /* PLEASE be non-trivial... */
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12 struct info {
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13 int msgno;
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14 int stats;
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15 };
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16
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17 static int len=0;
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18 static struct info *head;
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19
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20 static m_getatr();
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21 static int m_setatr();
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22 /* */
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23
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24 struct msgs *m_gmsg (name)
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25 register char *name;
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26 {
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27 #ifdef COMPAT
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28 register int cur,
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29 fd;
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30 #endif /* COMPAT */
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31 register int i,
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32 j;
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33 register struct info *rover,
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34 *tail;
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35 #ifdef COMPAT
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36 register char *cp;
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37 char buffer[BUFSIZ];
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38 #endif /* COMPAT */
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39 register struct msgs *mp;
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40 #ifdef SYS5DIR
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41 register struct dirent *dp;
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42 DIR * dd;
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43 #else /* SYS5DIR */
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44 register struct direct *dp;
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45 register DIR * dd;
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46 #endif /* SYS5DIR */
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47 struct stat st;
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48
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49 if ((dd = opendir (name = m_mailpath (name))) == NULL) {
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50 free (name);
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51 return NULL;
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52 }
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53 if (stat (name, &st) == NOTOK) {
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54 free (name);
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55 return NULL;
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56 }
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57
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58 mp = (struct msgs *) malloc (MHSIZE (mp, 0, 0));
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59 if (mp == NULL)
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60 adios (NULLCP, "unable to allocate folder storage");
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61 mp -> lowmsg = mp -> hghmsg = mp -> nummsg = 0;
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62 mp -> curmsg = 0;
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63 mp -> lowsel = mp -> hghsel = mp -> numsel = 0;
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64 mp -> foldpath = name;
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65 mp -> msgflags = 0;
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66 if (st.st_uid != getuid () || access (name, 02) == NOTOK)
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67 mp -> msgflags |= READONLY;
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68 #ifdef COMPAT
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69 cur = 0;
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70 #endif /* COMPAT */
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71 j = strlen (SBACKUP);
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72 if (head == NULL)
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73 if ((head = (struct info *)
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74 malloc ((unsigned) ((len = NINFO) * sizeof *head))) == NULL)
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75 adios (NULLCP, "unable to allocate info storage");
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76 tail = (rover = head) + len;
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77
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78 while (dp = readdir (dd)) {
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79 #if 0
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80 /* There might exists a sub-folder whose name is number.
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81 However, this check is too slow for us to adopt it. */
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82 char *buf;
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83 buf = concat(name, "/", dp -> d_name, NULLCP);
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84 if ((i = m_atoi (dp -> d_name))
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85 && stat (buf, &st) != NOTOK
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86 && (st.st_mode & S_IFMT) != S_IFDIR) {
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87 #else
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88 if (i = m_atoi (dp -> d_name)) {
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89 #endif
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90 if (rover >= tail) {
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91 register int curlen = tail - head;
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92
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93 if ((tail = (struct info *) realloc ((char *) head,
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94 (unsigned) ((len += NINFO) * sizeof *head)))
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95 == NULL)
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96 adios (NULLCP, "unable to allocate info storage");
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97 else
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98 rover = tail + curlen, head = tail, tail += len;
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99 }
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100 if (i > mp -> hghmsg)
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101 mp -> hghmsg = i;
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102 mp -> nummsg++;
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103 if (mp -> lowmsg == 0 || i < mp -> lowmsg)
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104 mp -> lowmsg = i;
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105 rover -> msgno = i;
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106 rover -> stats = EXISTS;
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107 #ifdef notdef
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108 rover -> stats &= ~DELETED;
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109 #endif /* notdef */
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110 rover++;
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111 }
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112 else
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113 switch (dp -> d_name[0]) {
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114 case '.':
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115 continue;
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116
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117 case ',':
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118 #ifdef notdef
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119 if ((i = m_atoi (dp -> d_name + 1)) {
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120 register struct info *l;
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121
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122 for (l = head; l < rover; l++)
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123 if (l -> msgno == i) {
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124 if (!(l -> stats & EXISTS))
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125 l -> stats |= DELETED;
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126 break;
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127 }
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128 }
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129 #endif /* notdef */
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130 continue;
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131
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132 #ifdef MHE
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133 case '+':
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134 continue;
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135 #endif /* MHE */
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136
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137 #ifdef UCI
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138 case '_':
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139 case '#':
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140 continue;
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141 #endif /* UCI */
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142
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143 default:
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144 #ifdef COMPAT
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145 if (strcmp (dp -> d_name, current) == 0) {
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146 cur++;
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147 continue;
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148 }
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149 #endif /* COMPAT */
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150 if (strcmp (dp -> d_name, LINK) == 0
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151 || strncmp (dp -> d_name, SBACKUP, j) == 0)
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152 continue;
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153 mp -> msgflags |= OTHERS;
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154 continue;
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155 }
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156 #if 0 /* for a sub-folder whose name is number */
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157 free(buf);
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158 #endif
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159 }
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160
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161 closedir (dd);
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162
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163 /* */
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164
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165 #ifdef COMPAT
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166 (void) sprintf (buffer, "%s-%s", current, name);
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167 if (cp = m_find (buffer)) {
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168 i = m_atoi (cp);
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169 (void) m_delete(buffer);
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170 if (i > 0)
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171 mp -> curmsg = i;
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172 }
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173 if (mp -> curmsg == 0 && cur && (fd = open (current, 0)) != NOTOK) {
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174 if ((i = read (fd, buffer, sizeof buffer)) > 0) {
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175 if (cp = index (buffer, '\n'))
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176 *cp = 0;
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177 if ((i = m_atoi (buffer)) > 0)
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178 mp -> curmsg = i;
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179 }
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180 (void) close (fd);
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181 }
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182 if (cur && !(mp -> msgflags & READONLY)){ /* sneaky... */
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183 (void) sprintf (buffer, "%s/%s", name, current);
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184 (void) unlink (buffer);
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185 }
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186 #endif /* COMPAT */
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187
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188 #ifndef MTR
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189 mp -> lowoff = 1;
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190 #else /* MTR */
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191 mp -> lowoff = mp -> lowmsg;
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192 #endif /* MTR */
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193 mp -> hghoff = mp -> hghmsg + 1;/* for "new" in m_convert */
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194
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195 mp = (struct msgs *)
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196 realloc ((char *) mp, MHSIZE (mp, mp -> lowoff, mp -> hghoff));
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197 if (mp == NULL)
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198 adios (NULLCP, "unable to allocate folder storage");
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199 #ifndef MTR
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200 for (i = mp -> lowmsg; i <= mp -> hghmsg; i++)
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201 mp -> msgstats[i] = 0;
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202 #else /* MTR */
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203 mp -> msgstats = (int *)
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204 calloc ((unsigned) 1, MHSIZEX (mp, mp -> lowmsg, mp -> hghmsg));
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205 if (mp -> msgstats == NULL)
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206 adios (NULLCP, "unable to allocate messages storage");
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207 mp -> msgstats = (mp -> msgbase = mp -> msgstats) - mp -> lowoff;
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208 if (mp -> msgstats < (int *)0) /* non portable */
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209 adios (NULLCP, "m_gmsg() botch -- you lose big");
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210 #endif /* MTR */
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211 for (tail = head; tail < rover; tail++)
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212 mp -> msgstats[tail -> msgno] = tail -> stats;
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213 m_getatr (mp);
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214
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215 return mp;
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216 }
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217
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218 /* */
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219
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220 static m_getatr (mp)
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221 register struct msgs *mp;
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222 {
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223 int alen,
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224 bits,
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225 i,
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226 j,
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227 plen,
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228 state;
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229 register char *cp;
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230 char name[NAMESZ],
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231 field[BUFSIZ * 2],
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232 *tmpfld = NULLCP;
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233 register struct node *np;
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234 register FILE * fp;
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235
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236 bits = FFATTRSLOT;
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237
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238 mp -> msgattrs[i = 0] = getcpy (current);
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239 mp -> msgattrs[++i] = '\0';
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240 mp -> attrstats = 0; /* initially, all public */
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241
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242 m_getdefs ();
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243 if (mh_seq == '\0' || *mh_seq == '\0')
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244 goto private_only;
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245
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246 (void) sprintf (field, "%s/%s", mp -> foldpath, mh_seq);
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247 if (fp = fopen (field, "r")) {
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248 for (state = FLD;;) {
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249 switch (state = m_getfld (state, name, field, sizeof field, fp)) {
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250 case FLD:
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251 case FLDPLUS:
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252 case FLDEOF:
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253 tmpfld = add(field, NULLCP);
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254 while (state == FLDPLUS) { /* for very very long line */
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255 state = m_getfld(state, name, field, sizeof field, fp);
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256 tmpfld = add(field, tmpfld);
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257 }
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258 (void) m_setatr (mp, getcpy (name), trimcpy (tmpfld));
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259 free(tmpfld);
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260 if (state == FLDEOF)
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261 break;
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262 continue;
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263
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264 case BODY:
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265 case BODYEOF:
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266 adios (NULLCP,
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267 "no blank lines are permitted in %s/%s",
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268 mp -> foldpath, mh_seq);/* fall */
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269
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270 case FILEEOF:
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271 break;
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272
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273 default:
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274 adios (NULLCP, "%s/%s is poorly formatted",
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275 mp -> foldpath, mh_seq);
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276 }
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277 break;
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278 }
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279 (void) fclose (fp);
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280 }
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281
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282 private_only: ;
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283 alen = strlen ("atr-");
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284 plen = strlen (mp -> foldpath) + 1;
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285
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286 for (np = m_defs; np; np = np -> n_next)
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287 if (ssequal ("atr-", np -> n_name)
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288 && (j = strlen (np -> n_name) - plen) > alen
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289 && *(np -> n_name + j) == '-'
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290 && strcmp (mp -> foldpath, np -> n_name + j + 1) == 0) {
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291 cp = getcpy (np -> n_name + alen);
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292 *(cp + j - alen) = '\0';
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293 if ((i = m_setatr (mp, cp, getcpy (np -> n_field))) != NOTOK)
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294 mp -> attrstats |= 1 << (bits + i);/* private */
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295 }
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296 }
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297
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298 /* */
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299
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300 static int m_setatr (mp, name, field)
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301 register struct msgs *mp;
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302 register char *name,
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303 *field;
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304 {
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305 int bits,
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306 hack;
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307 register int i,
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308 j,
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309 k;
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310 register char *cp,
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311 **ap;
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312
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313 bits = FFATTRSLOT;
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314 hack = strcmp (current, name) == 0;/* hack... */
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315 /* if we're going to use UNSEEN, it should be set here! */
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316
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317 for (i = 0; mp -> msgattrs[i]; i++)
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318 if (strcmp (mp -> msgattrs[i], name) == 0) {
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319 for (j = mp -> lowmsg; j <= mp -> hghmsg; j++)
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320 mp -> msgstats[j] &= ~(1 << (bits + i));
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321 break;
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322 }
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323 if (i >= NATTRS) {
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324 free (name);
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325 free (field);
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326 return NOTOK;
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327 }
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328
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329 if (mp -> msgattrs[i] == NULL) {
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330 mp -> msgattrs[i] = name;
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331 mp -> msgattrs[i + 1] = NULL;
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332 }
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333 else
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334 free (name);
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335
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336 for (ap = brkstring (field, " ", "\n");
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337 *ap;
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338 ap++) {
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339 if (cp = index (*ap, '-'))
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340 *cp++ = '\0';
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341 if ((j = m_atoi (*ap)) > 0) {
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342 #ifdef notdef
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343 if (hack && j >= mp -> lowmsg && j <= mp -> hghmsg
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344 && (mp -> msgstats[j] & EXISTS))
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345 mp -> curmsg = j;
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346 #else /* not notdef */
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347 if (hack)
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348 mp -> curmsg = j;
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349 #endif /* not notdef */
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350 for (k = cp ? m_atoi (cp) : j; j <= k; j++)
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351 if (j >= mp -> lowmsg && j <= mp -> hghmsg
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352 && (mp -> msgstats[j] & EXISTS))
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353 mp -> msgstats[j] |= 1 << (bits + i);
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354 }
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355 }
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356 free (field);
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357
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358 return i;
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359 }
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