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

   1 /* rmf.c -- remove a folder
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include <h/mh.h>
   9 #include <h/utils.h>
  10
  11 #define RMF_SWITCHES \
  12     X("interactive", 0, INTRSW) \
  13     X("nointeractive", 0, NINTRSW) \
  14     X("version", 0, VERSIONSW) \
  15     X("help", 0, HELPSW) \
  16
  17 #define X(sw, minchars, id) id,
  18 DEFINE_SWITCH_ENUM(RMF);
  19 #undef X
  20
  21 #define X(sw, minchars, id) { sw, minchars, id },
  22 DEFINE_SWITCH_ARRAY(RMF, switches);
  23 #undef X
  24
  25 /*
  26  * static prototypes
  27  */
  28 static int rmf(char *);
  29 static void rma (char *);
  30
  31
  32 int
  33 main (int argc, char **argv)
  34 {
  35     int defolder = 0, interactive = -1;
  36     char *cp, *folder = NULL, newfolder[BUFSIZ];
  37     char buf[BUFSIZ], **argp, **arguments;
  38
  39     if (nmh_init(argv[0], 1)) { return 1; }
  40
  41     arguments = getarguments (invo_name, argc, argv, 1);
  42     argp = arguments;
  43
  44     while ((cp = *argp++)) {
  45         if (*cp == '-') {
  46             switch (smatch (++cp, switches)) {
  47                 case AMBIGSW:
  48                     ambigsw (cp, switches);
  49                     done (1);
  50                 case UNKWNSW:
  51                     adios (NULL, "-%s unknown", cp);
  52
  53                 case HELPSW:
  54                     snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  55                         invo_name);
  56                     print_help (buf, switches, 1);
  57                     done (0);
  58                 case VERSIONSW:
  59                     print_version(invo_name);
  60                     done (0);
  61
  62                 case INTRSW:
  63                     interactive = 1;
  64                     continue;
  65                 case NINTRSW:
  66                     interactive = 0;
  67                     continue;
  68             }
  69         }
  70         if (*cp == '+' || *cp == '@') {
  71             if (folder)
  72                 adios (NULL, "only one folder at a time!");
  73             else
  74                 folder = pluspath (cp);
  75         } else {
  76             adios (NULL, "usage: %s [+folder] [switches]", invo_name);
  77         }
  78     }
  79
  80     if (!context_find ("path"))
  81         free (path ("./", TFOLDER));
  82     if (!folder) {
  83         folder = getfolder (1);
  84         defolder++;
  85     }
  86     if (strcmp (m_mailpath (folder), pwd ()) == 0)
  87         adios (NULL, "sorry, you can't remove the current working directory");
  88
  89     if (interactive == -1)
  90         interactive = defolder;
  91
  92     if (strchr (folder, '/') && (*folder != '/') && (*folder != '.')) {
  93         for (cp = stpcpy(newfolder, folder); cp > newfolder && *cp != '/'; cp--)
  94             continue;
  95         if (cp > newfolder)
  96             *cp = '\0';
  97         else
  98             strncpy (newfolder, getfolder(0), sizeof(newfolder));
  99     } else {
 100         strncpy (newfolder, getfolder(0), sizeof(newfolder));
 101     }
 102
 103     if (interactive) {
 104         cp = concat ("Remove folder \"", folder, "\"? ", NULL);
 105         if (!read_yes_or_no_if_tty (cp))
 106             done (0);
 107         free (cp);
 108     }
 109
 110     if (rmf (folder) == OK) {
 111         char *cfolder = context_find(pfolder);
 112         if (cfolder && strcmp (cfolder, newfolder)) {
 113             printf ("[+%s now current]\n", newfolder);
 114             context_replace (pfolder, newfolder);       /* update current folder */
 115         }
 116     }
 117     context_save ();    /* save the context file */
 118     done (0);
 119     return 1;
 120 }
 121
 122 static int
 123 rmf (char *folder)
 124 {
 125     int i, others;
 126     char *maildir;
 127     char cur[BUFSIZ];
 128     struct dirent *dp;
 129     DIR *dd;
 130
 131     switch (i = chdir (maildir = m_maildir (folder))) {
 132         case OK:
 133             if (access (".", W_OK) != NOTOK && access ("..", W_OK) != NOTOK)
 134                 break;
 135             /* FALLTHRU */
 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             inform("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, NULL);
 158
 159     while ((dp = readdir (dd))) {
 160         switch (dp->d_name[0]) {
 161             case '.':
 162                 if (strcmp (dp->d_name, ".") == 0
 163                         || strcmp (dp->d_name, "..") == 0)
 164                     continue;
 165                 /* FALLTHRU */
 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                         || has_prefix(dp->d_name, BACKUP_PREFIX))
 175                     break;
 176
 177                 inform("file \"%s/%s\" not deleted, continuing...",
 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     inform("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     int alen, j, plen;
 216     char *cp;
 217     struct node *np, *pp;
 218
 219     alen = LEN("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                 inform("bug: context_del(key=\"%s\"), continuing...",
 233                     np->n_name);
 234             if (pp) {
 235                 pp->n_next = np->n_next;
 236                 np = pp;
 237             } else {
 238                 m_defs = np->n_next;
 239             }
 240             ctxflags |= CTXMOD;
 241         } else {
 242             pp = np;
 243         }
 244     }
 245 }