diplodocus.org Git - nmh/blob - uip/rmf.c

   1
   2 /*
   3  * rmf.c -- remove a folder
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11
  12 #define RMF_SWITCHES \
  13     X("interactive", 0, INTRSW) \
  14     X("nointeractive", 0, NINTRSW) \
  15     X("version", 0, VERSIONSW) \
  16     X("help", 0, HELPSW) \
  17
  18 #define X(sw, minchars, id) id,
  19 DEFINE_SWITCH_ENUM(RMF);
  20 #undef X
  21
  22 #define X(sw, minchars, id) { sw, minchars, id },
  23 DEFINE_SWITCH_ARRAY(RMF, switches);
  24 #undef X
  25
  26 /*
  27  * static prototypes
  28  */
  29 static int rmf(char *);
  30 static void rma (char *);
  31
  32
  33 int
  34 main (int argc, char **argv)
  35 {
  36     int defolder = 0, interactive = -1;
  37     char *cp, *folder = NULL, newfolder[BUFSIZ];
  38     char buf[BUFSIZ], **argp, **arguments;
  39
  40     if (nmh_init(argv[0], 1)) { return 1; }
  41
  42     arguments = getarguments (invo_name, argc, argv, 1);
  43     argp = arguments;
  44
  45     while ((cp = *argp++)) {
  46         if (*cp == '-') {
  47             switch (smatch (++cp, switches)) {
  48                 case AMBIGSW:
  49                     ambigsw (cp, switches);
  50                     done (1);
  51                 case UNKWNSW:
  52                     adios (NULL, "-%s unknown", cp);
  53
  54                 case HELPSW:
  55                     snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  56                         invo_name);
  57                     print_help (buf, switches, 1);
  58                     done (0);
  59                 case VERSIONSW:
  60                     print_version(invo_name);
  61                     done (0);
  62
  63                 case INTRSW:
  64                     interactive = 1;
  65                     continue;
  66                 case NINTRSW:
  67                     interactive = 0;
  68                     continue;
  69             }
  70         }
  71         if (*cp == '+' || *cp == '@') {
  72             if (folder)
  73                 adios (NULL, "only one folder at a time!");
  74             else
  75                 folder = pluspath (cp);
  76         } else {
  77             adios (NULL, "usage: %s [+folder] [switches]", invo_name);
  78         }
  79     }
  80
  81     if (!context_find ("path"))
  82         free (path ("./", TFOLDER));
  83     if (!folder) {
  84         folder = getfolder (1);
  85         defolder++;
  86     }
  87     if (strcmp (m_mailpath (folder), pwd ()) == 0)
  88         adios (NULL, "sorry, you can't remove the current working directory");
  89
  90     if (interactive == -1)
  91         interactive = defolder;
  92
  93     if (strchr (folder, '/') && (*folder != '/') && (*folder != '.')) {
  94         for (cp = copy (folder, newfolder); cp > newfolder && *cp != '/'; cp--)
  95             continue;
  96         if (cp > newfolder)
  97             *cp = '\0';
  98         else
  99             strncpy (newfolder, getfolder(0), sizeof(newfolder));
 100     } else {
 101         strncpy (newfolder, getfolder(0), sizeof(newfolder));
 102     }
 103
 104     if (interactive) {
 105         cp = concat ("Remove folder \"", folder, "\"? ", NULL);
 106         if (!read_yes_or_no_if_tty (cp))
 107             done (0);
 108         free (cp);
 109     }
 110
 111     if (rmf (folder) == OK) {
 112         char *cfolder = context_find(pfolder);
 113         if (cfolder && strcmp (cfolder, newfolder)) {
 114             printf ("[+%s now current]\n", newfolder);
 115             context_replace (pfolder, newfolder);       /* update current folder */
 116         }
 117     }
 118     context_save ();    /* save the context file */
 119     done (0);
 120     return 1;
 121 }
 122
 123 static int
 124 rmf (char *folder)
 125 {
 126     int i, j, others;
 127     register char *maildir;
 128     char cur[BUFSIZ];
 129     register struct dirent *dp;
 130     register DIR *dd;
 131
 132     switch (i = chdir (maildir = m_maildir (folder))) {
 133         case OK:
 134             if (access (".", W_OK) != NOTOK && access ("..", W_OK) != NOTOK)
 135                 break;          /* fall otherwise */
 136
 137         case NOTOK:
 138             snprintf (cur, sizeof(cur), "atr-%s-%s",
 139                         current, m_mailpath (folder));
 140             if (!context_del (cur)) {
 141                 printf ("[+%s de-referenced]\n", folder);
 142                 return OK;
 143             }
 144             advise (NULL, "you have no profile entry for the %s folder +%s",
 145                     i == NOTOK ? "unreadable" : "read-only", folder);
 146             return NOTOK;
 147     }
 148
 149     if ((dd = opendir (".")) == NULL)
 150         adios (NULL, "unable to read folder +%s", folder);
 151     others = 0;
 152
 153     /*
 154      *  Run the external delete hook program.
 155      */
 156
 157     (void)ext_hook("del-hook", maildir, (char *)0);
 158
 159     j = strlen(BACKUP_PREFIX);
 160     while ((dp = readdir (dd))) {
 161         switch (dp->d_name[0]) {
 162             case '.':
 163                 if (strcmp (dp->d_name, ".") == 0
 164                         || strcmp (dp->d_name, "..") == 0)
 165                     continue;   /* else fall */
 166
 167             case ',':
 168                 break;
 169
 170             default:
 171                 if (m_atoi (dp->d_name))
 172                     break;
 173                 if (strcmp (dp->d_name, LINK) == 0
 174                         || strncmp (dp->d_name, BACKUP_PREFIX, j) == 0)
 175                     break;
 176
 177                 admonish (NULL, "file \"%s/%s\" not deleted",
 178                         folder, dp->d_name);
 179                 others++;
 180                 continue;
 181         }
 182         if (m_unlink (dp->d_name) == NOTOK) {
 183             admonish (dp->d_name, "unable to unlink %s:", folder);
 184             others++;
 185         }
 186     }
 187
 188     closedir (dd);
 189
 190     /*
 191      * Remove any relevant private sequences
 192      * or attributes from context file.
 193      */
 194     rma (folder);
 195
 196     if (chdir ("..") < 0) {
 197         advise ("..", "chdir");
 198     }
 199     if (others == 0 && remdir (maildir))
 200         return OK;
 201
 202     advise (NULL, "folder +%s not removed", folder);
 203     return NOTOK;
 204 }
 205
 206
 207 /*
 208  * Remove all the (private) sequence information for
 209  * this folder from the profile/context list.
 210  */
 211
 212 static void
 213 rma (char *folder)
 214 {
 215     register int alen, j, plen;
 216     register char *cp;
 217     register struct node *np, *pp;
 218
 219     alen = strlen ("atr-");
 220     plen = strlen (cp = m_mailpath (folder)) + 1;
 221
 222     /*
 223      * Search context list for keys that look like
 224      * "atr-something-folderpath", and remove them.
 225      */
 226     for (np = m_defs, pp = NULL; np; np = np->n_next) {
 227         if (ssequal ("atr-", np->n_name)
 228                 && (j = strlen (np->n_name) - plen) > alen
 229                 && *(np->n_name + j) == '-'
 230                 && strcmp (cp, np->n_name + j + 1) == 0) {
 231             if (!np->n_context)
 232                 admonish (NULL, "bug: context_del(key=\"%s\")", np->n_name);
 233             if (pp) {
 234                 pp->n_next = np->n_next;
 235                 np = pp;
 236             } else {
 237                 m_defs = np->n_next;
 238             }
 239             ctxflags |= CTXMOD;
 240         } else {
 241             pp = np;
 242         }
 243     }
 244 }