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 #include <h/utils.h>
  12
  13 #define RMF_SWITCHES \
  14     X("interactive", 0, INTRSW) \
  15     X("nointeractive", 0, NINTRSW) \
  16     X("version", 0, VERSIONSW) \
  17     X("help", 0, HELPSW) \
  18
  19 #define X(sw, minchars, id) id,
  20 DEFINE_SWITCH_ENUM(RMF);
  21 #undef X
  22
  23 #define X(sw, minchars, id) { sw, minchars, id },
  24 DEFINE_SWITCH_ARRAY(RMF, switches);
  25 #undef X
  26
  27 /*
  28  * static prototypes
  29  */
  30 static int rmf(char *);
  31 static void rma (char *);
  32
  33
  34 int
  35 main (int argc, char **argv)
  36 {
  37     int defolder = 0, interactive = -1;
  38     char *cp, *folder = NULL, newfolder[BUFSIZ];
  39     char buf[BUFSIZ], **argp, **arguments;
  40
  41     if (nmh_init(argv[0], 1)) { return 1; }
  42
  43     arguments = getarguments (invo_name, argc, argv, 1);
  44     argp = arguments;
  45
  46     while ((cp = *argp++)) {
  47         if (*cp == '-') {
  48             switch (smatch (++cp, switches)) {
  49                 case AMBIGSW:
  50                     ambigsw (cp, switches);
  51                     done (1);
  52                 case UNKWNSW:
  53                     adios (NULL, "-%s unknown", cp);
  54
  55                 case HELPSW:
  56                     snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  57                         invo_name);
  58                     print_help (buf, switches, 1);
  59                     done (0);
  60                 case VERSIONSW:
  61                     print_version(invo_name);
  62                     done (0);
  63
  64                 case INTRSW:
  65                     interactive = 1;
  66                     continue;
  67                 case NINTRSW:
  68                     interactive = 0;
  69                     continue;
  70             }
  71         }
  72         if (*cp == '+' || *cp == '@') {
  73             if (folder)
  74                 adios (NULL, "only one folder at a time!");
  75             else
  76                 folder = pluspath (cp);
  77         } else {
  78             adios (NULL, "usage: %s [+folder] [switches]", invo_name);
  79         }
  80     }
  81
  82     if (!context_find ("path"))
  83         free (path ("./", TFOLDER));
  84     if (!folder) {
  85         folder = getfolder (1);
  86         defolder++;
  87     }
  88     if (strcmp (m_mailpath (folder), pwd ()) == 0)
  89         adios (NULL, "sorry, you can't remove the current working directory");
  90
  91     if (interactive == -1)
  92         interactive = defolder;
  93
  94     if (strchr (folder, '/') && (*folder != '/') && (*folder != '.')) {
  95         for (cp = stpcpy(newfolder, folder); cp > newfolder && *cp != '/'; cp--)
  96             continue;
  97         if (cp > newfolder)
  98             *cp = '\0';
  99         else
 100             strncpy (newfolder, getfolder(0), sizeof(newfolder));
 101     } else {
 102         strncpy (newfolder, getfolder(0), sizeof(newfolder));
 103     }
 104
 105     if (interactive) {
 106         cp = concat ("Remove folder \"", folder, "\"? ", NULL);
 107         if (!read_yes_or_no_if_tty (cp))
 108             done (0);
 109         free (cp);
 110     }
 111
 112     if (rmf (folder) == OK) {
 113         char *cfolder = context_find(pfolder);
 114         if (cfolder && strcmp (cfolder, newfolder)) {
 115             printf ("[+%s now current]\n", newfolder);
 116             context_replace (pfolder, newfolder);       /* update current folder */
 117         }
 118     }
 119     context_save ();    /* save the context file */
 120     done (0);
 121     return 1;
 122 }
 123
 124 static int
 125 rmf (char *folder)
 126 {
 127     int i, others;
 128     char *maildir;
 129     char cur[BUFSIZ];
 130     struct dirent *dp;
 131     DIR *dd;
 132
 133     switch (i = chdir (maildir = m_maildir (folder))) {
 134         case OK:
 135             if (access (".", W_OK) != NOTOK && access ("..", W_OK) != NOTOK)
 136                 break;
 137             /* FALLTHRU */
 138
 139         case NOTOK:
 140             snprintf (cur, sizeof(cur), "atr-%s-%s",
 141                         current, m_mailpath (folder));
 142             if (!context_del (cur)) {
 143                 printf ("[+%s de-referenced]\n", folder);
 144                 return OK;
 145             }
 146             advise (NULL, "you have no profile entry for the %s folder +%s",
 147                     i == NOTOK ? "unreadable" : "read-only", folder);
 148             return NOTOK;
 149     }
 150
 151     if ((dd = opendir (".")) == NULL)
 152         adios (NULL, "unable to read folder +%s", folder);
 153     others = 0;
 154
 155     /*
 156      *  Run the external delete hook program.
 157      */
 158
 159     (void)ext_hook("del-hook", maildir, NULL);
 160
 161     while ((dp = readdir (dd))) {
 162         switch (dp->d_name[0]) {
 163             case '.':
 164                 if (strcmp (dp->d_name, ".") == 0
 165                         || strcmp (dp->d_name, "..") == 0)
 166                     continue;
 167                 /* FALLTHRU */
 168
 169             case ',':
 170                 break;
 171
 172             default:
 173                 if (m_atoi (dp->d_name))
 174                     break;
 175                 if (strcmp (dp->d_name, LINK) == 0
 176                         || has_prefix(dp->d_name, BACKUP_PREFIX))
 177                     break;
 178
 179                 admonish (NULL, "file \"%s/%s\" not deleted",
 180                         folder, dp->d_name);
 181                 others++;
 182                 continue;
 183         }
 184         if (m_unlink (dp->d_name) == NOTOK) {
 185             admonish (dp->d_name, "unable to unlink %s:", folder);
 186             others++;
 187         }
 188     }
 189
 190     closedir (dd);
 191
 192     /*
 193      * Remove any relevant private sequences
 194      * or attributes from context file.
 195      */
 196     rma (folder);
 197
 198     if (chdir ("..") < 0) {
 199         advise ("..", "chdir");
 200     }
 201     if (others == 0 && remdir (maildir))
 202         return OK;
 203
 204     advise (NULL, "folder +%s not removed", folder);
 205     return NOTOK;
 206 }
 207
 208
 209 /*
 210  * Remove all the (private) sequence information for
 211  * this folder from the profile/context list.
 212  */
 213
 214 static void
 215 rma (char *folder)
 216 {
 217     int alen, j, plen;
 218     char *cp;
 219     struct node *np, *pp;
 220
 221     alen = LEN("atr-");
 222     plen = strlen (cp = m_mailpath (folder)) + 1;
 223
 224     /*
 225      * Search context list for keys that look like
 226      * "atr-something-folderpath", and remove them.
 227      */
 228     for (np = m_defs, pp = NULL; np; np = np->n_next) {
 229         if (ssequal ("atr-", np->n_name)
 230                 && (j = strlen (np->n_name) - plen) > alen
 231                 && *(np->n_name + j) == '-'
 232                 && strcmp (cp, np->n_name + j + 1) == 0) {
 233             if (!np->n_context)
 234                 admonish (NULL, "bug: context_del(key=\"%s\")", np->n_name);
 235             if (pp) {
 236                 pp->n_next = np->n_next;
 237                 np = pp;
 238             } else {
 239                 m_defs = np->n_next;
 240             }
 241             ctxflags |= CTXMOD;
 242         } else {
 243             pp = np;
 244         }
 245     }
 246 }