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     char *fp;
  41
  42     if (nmh_init(argv[0], 1)) { return 1; }
  43
  44     arguments = getarguments (invo_name, argc, argv, 1);
  45     argp = arguments;
  46
  47     while ((cp = *argp++)) {
  48         if (*cp == '-') {
  49             switch (smatch (++cp, switches)) {
  50                 case AMBIGSW:
  51                     ambigsw (cp, switches);
  52                     done (1);
  53                 case UNKWNSW:
  54                     adios (NULL, "-%s unknown", cp);
  55
  56                 case HELPSW:
  57                     snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  58                         invo_name);
  59                     print_help (buf, switches, 1);
  60                     done (0);
  61                 case VERSIONSW:
  62                     print_version(invo_name);
  63                     done (0);
  64
  65                 case INTRSW:
  66                     interactive = 1;
  67                     continue;
  68                 case NINTRSW:
  69                     interactive = 0;
  70                     continue;
  71             }
  72         }
  73         if (*cp == '+' || *cp == '@') {
  74             if (folder)
  75                 adios (NULL, "only one folder at a time!");
  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     fp = m_mailpath(folder);
  89     if (!strcmp(fp, pwd()))
  90         adios (NULL, "sorry, you can't remove the current working directory");
  91     free(fp);
  92
  93     if (interactive == -1)
  94         interactive = defolder;
  95
  96     if (strchr (folder, '/') && (*folder != '/') && (*folder != '.')) {
  97         for (cp = stpcpy(newfolder, folder); cp > newfolder && *cp != '/'; cp--)
  98             continue;
  99         if (cp > newfolder)
 100             *cp = '\0';
 101         else
 102             strncpy (newfolder, getfolder(0), sizeof(newfolder));
 103     } else {
 104         strncpy (newfolder, getfolder(0), sizeof(newfolder));
 105     }
 106
 107     if (interactive) {
 108         cp = concat ("Remove folder \"", folder, "\"? ", NULL);
 109         if (!read_yes_or_no_if_tty (cp))
 110             done (0);
 111         free (cp);
 112     }
 113
 114     if (rmf (folder) == OK) {
 115         char *cfolder = context_find(pfolder);
 116         if (cfolder && strcmp (cfolder, newfolder)) {
 117             printf ("[+%s now current]\n", newfolder);
 118             context_replace (pfolder, newfolder);       /* update current folder */
 119         }
 120     }
 121     context_save ();    /* save the context file */
 122     done (0);
 123     return 1;
 124 }
 125
 126 static int
 127 rmf (char *folder)
 128 {
 129     int i, others;
 130     char *fp;
 131     char *maildir;
 132     char cur[BUFSIZ];
 133     struct dirent *dp;
 134     DIR *dd;
 135
 136     switch (i = chdir (maildir = m_maildir (folder))) {
 137         case OK:
 138             if (access (".", W_OK) != NOTOK && access ("..", W_OK) != NOTOK)
 139                 break;
 140             /* FALLTHRU */
 141
 142         case NOTOK:
 143             fp = m_mailpath(folder);
 144             snprintf (cur, sizeof(cur), "atr-%s-%s", current, fp);
 145             free(fp);
 146             if (!context_del (cur)) {
 147                 printf ("[+%s de-referenced]\n", folder);
 148                 return OK;
 149             }
 150             inform("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, NULL);
 164
 165     while ((dp = readdir (dd))) {
 166         switch (dp->d_name[0]) {
 167             case '.':
 168                 if (strcmp (dp->d_name, ".") == 0
 169                         || strcmp (dp->d_name, "..") == 0)
 170                     continue;
 171                 break;
 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                         || has_prefix(dp->d_name, BACKUP_PREFIX))
 181                     break;
 182
 183                 inform("file \"%s/%s\" not deleted, continuing...",
 184                         folder, dp->d_name);
 185                 others++;
 186                 continue;
 187         }
 188         if (m_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     if (chdir ("..") < 0) {
 203         advise ("..", "chdir");
 204     }
 205     if (others == 0 && remdir (maildir))
 206         return OK;
 207
 208     inform("folder +%s not removed", folder);
 209     return NOTOK;
 210 }
 211
 212
 213 /*
 214  * Remove all the (private) sequence information for
 215  * this folder from the profile/context list.
 216  */
 217
 218 static void
 219 rma (char *folder)
 220 {
 221     int alen, j, plen;
 222     char *cp;
 223     struct node *np, *pp;
 224
 225     alen = LEN("atr-");
 226     plen = strlen (cp = m_mailpath (folder)) + 1;
 227
 228     /*
 229      * Search context list for keys that look like
 230      * "atr-something-folderpath", and remove them.
 231      */
 232     for (np = m_defs, pp = NULL; np; np = np->n_next) {
 233         if (ssequal ("atr-", np->n_name)
 234                 && (j = strlen (np->n_name) - plen) > alen
 235                 && *(np->n_name + j) == '-'
 236                 && strcmp (cp, np->n_name + j + 1) == 0) {
 237             if (!np->n_context)
 238                 inform("bug: context_del(key=\"%s\"), continuing...",
 239                     np->n_name);
 240             if (pp) {
 241                 pp->n_next = np->n_next;
 242                 np = pp;
 243             } else {
 244                 m_defs = np->n_next;
 245             }
 246             ctxflags |= CTXMOD;
 247         } else {
 248             pp = np;
 249         }
 250     }
 251
 252     free(cp);
 253 }