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 #include "../sbr/m_maildir.h"
  11 #include "../sbr/m_mktemp.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             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 = stpcpy(newfolder, folder); 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, others;
 127     char *maildir;
 128     char cur[BUFSIZ];
 129     struct dirent *dp;
 130     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;
 136             /* FALLTHRU */
 137
 138         case NOTOK:
 139             snprintf (cur, sizeof(cur), "atr-%s-%s",
 140                         current, m_mailpath (folder));
 141             if (!context_del (cur)) {
 142                 printf ("[+%s de-referenced]\n", folder);
 143                 return OK;
 144             }
 145             inform("you have no profile entry for the %s folder +%s",
 146                     i == NOTOK ? "unreadable" : "read-only", folder);
 147             return NOTOK;
 148     }
 149
 150     if ((dd = opendir (".")) == NULL)
 151         adios (NULL, "unable to read folder +%s", folder);
 152     others = 0;
 153
 154     /*
 155      *  Run the external delete hook program.
 156      */
 157
 158     (void)ext_hook("del-hook", maildir, NULL);
 159
 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;
 166                 break;
 167
 168             case ',':
 169                 break;
 170
 171             default:
 172                 if (m_atoi (dp->d_name))
 173                     break;
 174                 if (strcmp (dp->d_name, LINK) == 0
 175                         || has_prefix(dp->d_name, BACKUP_PREFIX))
 176                     break;
 177
 178                 inform("file \"%s/%s\" not deleted, continuing...",
 179                         folder, dp->d_name);
 180                 others++;
 181                 continue;
 182         }
 183         if (m_unlink (dp->d_name) == NOTOK) {
 184             admonish (dp->d_name, "unable to unlink %s:", folder);
 185             others++;
 186         }
 187     }
 188
 189     closedir (dd);
 190
 191     /*
 192      * Remove any relevant private sequences
 193      * or attributes from context file.
 194      */
 195     rma (folder);
 196
 197     if (chdir ("..") < 0) {
 198         advise ("..", "chdir");
 199     }
 200     if (others == 0 && remdir (maildir))
 201         return OK;
 202
 203     inform("folder +%s not removed", folder);
 204     return NOTOK;
 205 }
 206
 207
 208 /*
 209  * Remove all the (private) sequence information for
 210  * this folder from the profile/context list.
 211  */
 212
 213 static void
 214 rma (char *folder)
 215 {
 216     int alen, j, plen;
 217     char *cp;
 218     struct node *np, *pp;
 219
 220     alen = LEN("atr-");
 221     plen = strlen (cp = m_mailpath (folder)) + 1;
 222
 223     /*
 224      * Search context list for keys that look like
 225      * "atr-something-folderpath", and remove them.
 226      */
 227     for (np = m_defs, pp = NULL; np; np = np->n_next) {
 228         if (ssequal ("atr-", np->n_name)
 229                 && (j = strlen (np->n_name) - plen) > alen
 230                 && *(np->n_name + j) == '-'
 231                 && strcmp (cp, np->n_name + j + 1) == 0) {
 232             if (!np->n_context)
 233                 inform("bug: context_del(key=\"%s\"), continuing...",
 234                     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 }