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 "sbr/context_save.h"
  10 #include "sbr/context_replace.h"
  11 #include "sbr/context_del.h"
  12 #include "sbr/context_find.h"
  13 #include "sbr/ambigsw.h"
  14 #include "sbr/path.h"
  15 #include "sbr/print_version.h"
  16 #include "sbr/print_help.h"
  17 #include "sbr/error.h"
  18 #include "h/done.h"
  19 #include "h/utils.h"
  20 #include "sbr/m_maildir.h"
  21 #include "sbr/m_mktemp.h"
  22
  23 #define RMF_SWITCHES \
  24     X("interactive", 0, INTRSW) \
  25     X("nointeractive", 0, NINTRSW) \
  26     X("version", 0, VERSIONSW) \
  27     X("help", 0, HELPSW) \
  28
  29 #define X(sw, minchars, id) id,
  30 DEFINE_SWITCH_ENUM(RMF);
  31 #undef X
  32
  33 #define X(sw, minchars, id) { sw, minchars, id },
  34 DEFINE_SWITCH_ARRAY(RMF, switches);
  35 #undef X
  36
  37 /*
  38  * static prototypes
  39  */
  40 static int rmf(char *);
  41 static void rma (char *);
  42
  43
  44 int
  45 main (int argc, char **argv)
  46 {
  47     bool defolder = false;
  48     int interactive = -1;
  49     char *cp, *folder = NULL, newfolder[BUFSIZ];
  50     char buf[BUFSIZ], **argp, **arguments;
  51     char *fp;
  52
  53     if (nmh_init(argv[0], true, true)) { return 1; }
  54
  55     arguments = getarguments (invo_name, argc, argv, 1);
  56     argp = arguments;
  57
  58     while ((cp = *argp++)) {
  59         if (*cp == '-') {
  60             switch (smatch (++cp, switches)) {
  61                 case AMBIGSW:
  62                     ambigsw (cp, switches);
  63                     done (1);
  64                 case UNKWNSW:
  65                     die("-%s unknown", cp);
  66
  67                 case HELPSW:
  68                     snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  69                         invo_name);
  70                     print_help (buf, switches, 1);
  71                     done (0);
  72                 case VERSIONSW:
  73                     print_version(invo_name);
  74                     done (0);
  75
  76                 case INTRSW:
  77                     interactive = 1;
  78                     continue;
  79                 case NINTRSW:
  80                     interactive = 0;
  81                     continue;
  82             }
  83         }
  84         if (*cp == '+' || *cp == '@') {
  85             if (folder)
  86                 die("only one folder at a time!");
  87             folder = pluspath (cp);
  88         } else {
  89             die("usage: %s [+folder] [switches]", invo_name);
  90         }
  91     }
  92
  93     if (!context_find ("path"))
  94         free (path ("./", TFOLDER));
  95     if (!folder) {
  96         folder = getfolder (1);
  97         defolder = true;
  98     }
  99     fp = m_mailpath(folder);
 100     if (!strcmp(fp, pwd()))
 101         die("sorry, you can't remove the current working directory");
 102     free(fp);
 103
 104     if (interactive == -1)
 105         interactive = defolder;
 106
 107     if (strchr (folder, '/') && (*folder != '/') && (*folder != '.')) {
 108         for (cp = stpcpy(newfolder, folder); cp > newfolder && *cp != '/'; cp--)
 109             continue;
 110         if (cp > newfolder)
 111             *cp = '\0';
 112         else
 113             strncpy (newfolder, getfolder(0), sizeof(newfolder));
 114     } else {
 115         strncpy (newfolder, getfolder(0), sizeof(newfolder));
 116     }
 117
 118     if (interactive) {
 119         cp = concat ("Remove folder \"", folder, "\"? ", NULL);
 120         if (!read_yes_or_no_if_tty (cp))
 121             done (0);
 122         free (cp);
 123     }
 124
 125     if (rmf (folder) == OK) {
 126         char *cfolder = context_find(pfolder);
 127         if (cfolder && strcmp (cfolder, newfolder)) {
 128             printf ("[+%s now current]\n", newfolder);
 129             context_replace (pfolder, newfolder);       /* update current folder */
 130         }
 131     }
 132     context_save ();    /* save the context file */
 133     done (0);
 134     return 1;
 135 }
 136
 137 static int
 138 rmf (char *folder)
 139 {
 140     int i;
 141     bool others;
 142     char *fp;
 143     char *maildir;
 144     char cur[BUFSIZ];
 145     struct dirent *dp;
 146     DIR *dd;
 147
 148     switch (i = chdir (maildir = m_maildir (folder))) {
 149         case OK:
 150             if (access (".", W_OK) != NOTOK && access ("..", W_OK) != NOTOK)
 151                 break;
 152             /* FALLTHRU */
 153
 154         case NOTOK:
 155             fp = m_mailpath(folder);
 156             snprintf (cur, sizeof(cur), "atr-%s-%s", current, fp);
 157             free(fp);
 158             if (!context_del (cur)) {
 159                 printf ("[+%s de-referenced]\n", folder);
 160                 return OK;
 161             }
 162             inform("you have no profile entry for the %s folder +%s",
 163                     i == NOTOK ? "unreadable" : "read-only", folder);
 164             return NOTOK;
 165     }
 166
 167     if ((dd = opendir (".")) == NULL)
 168         die("unable to read folder +%s", folder);
 169     others = false;
 170
 171     /*
 172      *  Run the external delete hook program.
 173      */
 174
 175     (void)ext_hook("del-hook", maildir, NULL);
 176
 177     while ((dp = readdir (dd))) {
 178         switch (dp->d_name[0]) {
 179             case '.':
 180                 if (strcmp (dp->d_name, ".") == 0
 181                         || strcmp (dp->d_name, "..") == 0)
 182                     continue;
 183                 break;
 184
 185             case ',':
 186                 break;
 187
 188             default:
 189                 if (m_atoi (dp->d_name))
 190                     break;
 191                 if (strcmp (dp->d_name, LINK) == 0
 192                         || has_prefix(dp->d_name, BACKUP_PREFIX))
 193                     break;
 194
 195                 inform("file \"%s/%s\" not deleted, continuing...",
 196                         folder, dp->d_name);
 197                 others = true;
 198                 continue;
 199         }
 200         if (m_unlink (dp->d_name) == NOTOK) {
 201             admonish (dp->d_name, "unable to unlink %s:", folder);
 202             others = true;
 203         }
 204     }
 205
 206     closedir (dd);
 207
 208     /*
 209      * Remove any relevant private sequences
 210      * or attributes from context file.
 211      */
 212     rma (folder);
 213
 214     if (chdir ("..") < 0) {
 215         advise ("..", "chdir");
 216     }
 217     if (!others && remdir (maildir))
 218         return OK;
 219
 220     inform("folder +%s not removed", folder);
 221     return NOTOK;
 222 }
 223
 224
 225 /*
 226  * Remove all the (private) sequence information for
 227  * this folder from the profile/context list.
 228  */
 229
 230 static void
 231 rma (char *folder)
 232 {
 233     int alen, j, plen;
 234     char *cp;
 235     struct node *np, *pp;
 236
 237     alen = LEN("atr-");
 238     plen = strlen (cp = m_mailpath (folder)) + 1;
 239
 240     /*
 241      * Search context list for keys that look like
 242      * "atr-something-folderpath", and remove them.
 243      */
 244     for (np = m_defs, pp = NULL; np; np = np->n_next) {
 245         if (ssequal ("atr-", np->n_name)
 246                 && (j = strlen (np->n_name) - plen) > alen
 247                 && *(np->n_name + j) == '-'
 248                 && strcmp (cp, np->n_name + j + 1) == 0) {
 249             if (!np->n_context)
 250                 inform("bug: context_del(key=\"%s\"), continuing...",
 251                     np->n_name);
 252             if (pp) {
 253                 pp->n_next = np->n_next;
 254                 np = pp;
 255             } else {
 256                 m_defs = np->n_next;
 257             }
 258             ctxflags |= CTXMOD;
 259         } else {
 260             pp = np;
 261         }
 262     }
 263
 264     free(cp);
 265 }