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