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