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