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 #ifdef LOCALE
  41     setlocale(LC_ALL, "");
  42 #endif
  43     invo_name = r1bindex (argv[0], '/');
  44
  45     /* read user profile/context */
  46     context_read();
  47
  48     arguments = getarguments (invo_name, argc, argv, 1);
  49     argp = arguments;
  50
  51     while ((cp = *argp++)) {
  52         if (*cp == '-') {
  53             switch (smatch (++cp, switches)) {
  54                 case AMBIGSW:
  55                     ambigsw (cp, switches);
  56                     done (1);
  57                 case UNKWNSW:
  58                     adios (NULL, "-%s unknown", cp);
  59
  60                 case HELPSW:
  61                     snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  62                         invo_name);
  63                     print_help (buf, switches, 1);
  64                     done (0);
  65                 case VERSIONSW:
  66                     print_version(invo_name);
  67                     done (0);
  68
  69                 case INTRSW:
  70                     interactive = 1;
  71                     continue;
  72                 case NINTRSW:
  73                     interactive = 0;
  74                     continue;
  75             }
  76         }
  77         if (*cp == '+' || *cp == '@') {
  78             if (folder)
  79                 adios (NULL, "only one folder at a time!");
  80             else
  81                 folder = pluspath (cp);
  82         } else {
  83             adios (NULL, "usage: %s [+folder] [switches]", invo_name);
  84         }
  85     }
  86
  87     if (!context_find ("path"))
  88         free (path ("./", TFOLDER));
  89     if (!folder) {
  90         folder = getfolder (1);
  91         defolder++;
  92     }
  93     if (strcmp (m_mailpath (folder), pwd ()) == 0)
  94         adios (NULL, "sorry, you can't remove the current working directory");
  95
  96     if (interactive == -1)
  97         interactive = defolder;
  98
  99     if (strchr (folder, '/') && (*folder != '/') && (*folder != '.')) {
 100         for (cp = copy (folder, newfolder); cp > newfolder && *cp != '/'; cp--)
 101             continue;
 102         if (cp > newfolder)
 103             *cp = '\0';
 104         else
 105             strncpy (newfolder, getfolder(0), sizeof(newfolder));
 106     } else {
 107         strncpy (newfolder, getfolder(0), sizeof(newfolder));
 108     }
 109
 110     if (interactive) {
 111         cp = concat ("Remove folder \"", folder, "\"? ", NULL);
 112         if (!getanswer (cp))
 113             done (0);
 114         free (cp);
 115     }
 116
 117     if (rmf (folder) == OK) {
 118         char *cfolder = context_find(pfolder);
 119         if (cfolder && strcmp (cfolder, newfolder)) {
 120             printf ("[+%s now current]\n", newfolder);
 121             context_replace (pfolder, newfolder);       /* update current folder */
 122         }
 123     }
 124     context_save ();    /* save the context file */
 125     done (0);
 126     return 1;
 127 }
 128
 129 static int
 130 rmf (char *folder)
 131 {
 132     int i, j, others;
 133     register char *maildir;
 134     char cur[BUFSIZ];
 135     register struct dirent *dp;
 136     register DIR *dd;
 137
 138     switch (i = chdir (maildir = m_maildir (folder))) {
 139         case OK:
 140             if (access (".", W_OK) != NOTOK && access ("..", W_OK) != NOTOK)
 141                 break;          /* fall otherwise */
 142
 143         case NOTOK:
 144             snprintf (cur, sizeof(cur), "atr-%s-%s",
 145                         current, m_mailpath (folder));
 146             if (!context_del (cur)) {
 147                 printf ("[+%s de-referenced]\n", folder);
 148                 return OK;
 149             }
 150             advise (NULL, "you have no profile entry for the %s folder +%s",
 151                     i == NOTOK ? "unreadable" : "read-only", folder);
 152             return NOTOK;
 153     }
 154
 155     if ((dd = opendir (".")) == NULL)
 156         adios (NULL, "unable to read folder +%s", folder);
 157     others = 0;
 158
 159     /*
 160      *  Run the external delete hook program.
 161      */
 162
 163     (void)ext_hook("del-hook", maildir, (char *)0);
 164
 165     j = strlen(BACKUP_PREFIX);
 166     while ((dp = readdir (dd))) {
 167         switch (dp->d_name[0]) {
 168             case '.':
 169                 if (strcmp (dp->d_name, ".") == 0
 170                         || strcmp (dp->d_name, "..") == 0)
 171                     continue;   /* else fall */
 172
 173             case ',':
 174                 break;
 175
 176             default:
 177                 if (m_atoi (dp->d_name))
 178                     break;
 179                 if (strcmp (dp->d_name, LINK) == 0
 180                         || strncmp (dp->d_name, BACKUP_PREFIX, j) == 0)
 181                     break;
 182
 183                 admonish (NULL, "file \"%s/%s\" not deleted",
 184                         folder, dp->d_name);
 185                 others++;
 186                 continue;
 187         }
 188         if (unlink (dp->d_name) == NOTOK) {
 189             admonish (dp->d_name, "unable to unlink %s:", folder);
 190             others++;
 191         }
 192     }
 193
 194     closedir (dd);
 195
 196     /*
 197      * Remove any relevant private sequences
 198      * or attributes from context file.
 199      */
 200     rma (folder);
 201
 202     chdir ("..");
 203     if (others == 0 && remdir (maildir))
 204         return OK;
 205
 206     advise (NULL, "folder +%s not removed", folder);
 207     return NOTOK;
 208 }
 209
 210
 211 /*
 212  * Remove all the (private) sequence information for
 213  * this folder from the profile/context list.
 214  */
 215
 216 static void
 217 rma (char *folder)
 218 {
 219     register int alen, j, plen;
 220     register char *cp;
 221     register struct node *np, *pp;
 222
 223     alen = strlen ("atr-");
 224     plen = strlen (cp = m_mailpath (folder)) + 1;
 225
 226     /*
 227      * Search context list for keys that look like
 228      * "atr-something-folderpath", and remove them.
 229      */
 230     for (np = m_defs, pp = NULL; np; np = np->n_next) {
 231         if (ssequal ("atr-", np->n_name)
 232                 && (j = strlen (np->n_name) - plen) > alen
 233                 && *(np->n_name + j) == '-'
 234                 && strcmp (cp, np->n_name + j + 1) == 0) {
 235             if (!np->n_context)
 236                 admonish (NULL, "bug: context_del(key=\"%s\")", np->n_name);
 237             if (pp) {
 238                 pp->n_next = np->n_next;
 239                 np = pp;
 240             } else {
 241                 m_defs = np->n_next;
 242             }
 243             ctxflags |= CTXMOD;
 244         } else {
 245             pp = np;
 246         }
 247     }
 248 }