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/m_atoi.h"
  10 #include "sbr/getfolder.h"
  11 #include "sbr/ext_hook.h"
  12 #include "sbr/context_save.h"
  13 #include "sbr/context_replace.h"
  14 #include "sbr/context_del.h"
  15 #include "sbr/context_find.h"
  16 #include "sbr/ambigsw.h"
  17 #include "sbr/path.h"
  18 #include "sbr/print_version.h"
  19 #include "sbr/print_help.h"
  20 #include "sbr/error.h"
  21 #include "h/done.h"
  22 #include "h/utils.h"
  23 #include "sbr/m_maildir.h"
  24 #include "sbr/m_mktemp.h"
  25
  26 #define RMF_SWITCHES \
  27     X("interactive", 0, INTRSW) \
  28     X("nointeractive", 0, NINTRSW) \
  29     X("version", 0, VERSIONSW) \
  30     X("help", 0, HELPSW) \
  31
  32 #define X(sw, minchars, id) id,
  33 DEFINE_SWITCH_ENUM(RMF);
  34 #undef X
  35
  36 #define X(sw, minchars, id) { sw, minchars, id },
  37 DEFINE_SWITCH_ARRAY(RMF, switches);
  38 #undef X
  39
  40 /*
  41  * static prototypes
  42  */
  43 static int rmf(char *);
  44 static void rma (char *);
  45
  46
  47 int
  48 main (int argc, char **argv)
  49 {
  50     bool defolder = false;
  51     int interactive = -1;
  52     char *cp, *folder = NULL, newfolder[BUFSIZ];
  53     char buf[BUFSIZ], **argp, **arguments;
  54     char *fp;
  55
  56     if (nmh_init(argv[0], true, true)) { return 1; }
  57
  58     arguments = getarguments (invo_name, argc, argv, 1);
  59     argp = arguments;
  60
  61     while ((cp = *argp++)) {
  62         if (*cp == '-') {
  63             switch (smatch (++cp, switches)) {
  64                 case AMBIGSW:
  65                     ambigsw (cp, switches);
  66                     done (1);
  67                 case UNKWNSW:
  68                     die("-%s unknown", cp);
  69
  70                 case HELPSW:
  71                     snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  72                         invo_name);
  73                     print_help (buf, switches, 1);
  74                     done (0);
  75                 case VERSIONSW:
  76                     print_version(invo_name);
  77                     done (0);
  78
  79                 case INTRSW:
  80                     interactive = 1;
  81                     continue;
  82                 case NINTRSW:
  83                     interactive = 0;
  84                     continue;
  85             }
  86         }
  87         if (*cp == '+' || *cp == '@') {
  88             if (folder)
  89                 die("only one folder at a time!");
  90             folder = pluspath (cp);
  91         } else {
  92             die("usage: %s [+folder] [switches]", invo_name);
  93         }
  94     }
  95
  96     if (!context_find ("path"))
  97         free (path ("./", TFOLDER));
  98     if (!folder) {
  99         folder = getfolder (1);
 100         defolder = true;
 101     }
 102     fp = m_mailpath(folder);
 103     if (!strcmp(fp, pwd()))
 104         die("sorry, you can't remove the current working directory");
 105     free(fp);
 106
 107     if (interactive == -1)
 108         interactive = defolder;
 109
 110     if (strchr (folder, '/') && (*folder != '/') && (*folder != '.')) {
 111         for (cp = stpcpy(newfolder, folder); cp > newfolder && *cp != '/'; cp--)
 112             continue;
 113         if (cp > newfolder)
 114             *cp = '\0';
 115         else
 116             strncpy (newfolder, getfolder(0), sizeof(newfolder));
 117     } else {
 118         strncpy (newfolder, getfolder(0), sizeof(newfolder));
 119     }
 120
 121     if (interactive) {
 122         cp = concat ("Remove folder \"", folder, "\"? ", NULL);
 123         if (!read_yes_or_no_if_tty (cp))
 124             done (0);
 125         free (cp);
 126     }
 127
 128     if (rmf (folder) == OK) {
 129         char *cfolder = context_find(pfolder);
 130         if (cfolder && strcmp (cfolder, newfolder)) {
 131             printf ("[+%s now current]\n", newfolder);
 132             context_replace (pfolder, newfolder);       /* update current folder */
 133         }
 134     }
 135     context_save ();    /* save the context file */
 136     done (0);
 137     return 1;
 138 }
 139
 140 static int
 141 rmf (char *folder)
 142 {
 143     int i;
 144     bool others;
 145     char *fp;
 146     char *maildir;
 147     char cur[BUFSIZ];
 148     struct dirent *dp;
 149     DIR *dd;
 150
 151     switch (i = chdir (maildir = m_maildir (folder))) {
 152         case OK:
 153             if (access (".", W_OK) != NOTOK && access ("..", W_OK) != NOTOK)
 154                 break;
 155             /* FALLTHRU */
 156
 157         case NOTOK:
 158             fp = m_mailpath(folder);
 159             snprintf (cur, sizeof(cur), "atr-%s-%s", current, fp);
 160             free(fp);
 161             if (!context_del (cur)) {
 162                 printf ("[+%s de-referenced]\n", folder);
 163                 return OK;
 164             }
 165             inform("you have no profile entry for the %s folder +%s",
 166                     i == NOTOK ? "unreadable" : "read-only", folder);
 167             return NOTOK;
 168     }
 169
 170     if ((dd = opendir (".")) == NULL)
 171         die("unable to read folder +%s", folder);
 172     others = false;
 173
 174     /*
 175      *  Run the external delete hook program.
 176      */
 177
 178     (void)ext_hook("del-hook", maildir, NULL);
 179
 180     while ((dp = readdir (dd))) {
 181         switch (dp->d_name[0]) {
 182             case '.':
 183                 if (strcmp (dp->d_name, ".") == 0
 184                         || strcmp (dp->d_name, "..") == 0)
 185                     continue;
 186                 break;
 187
 188             case ',':
 189                 break;
 190
 191             default:
 192                 if (m_atoi (dp->d_name))
 193                     break;
 194                 if (strcmp (dp->d_name, LINK) == 0
 195                         || has_prefix(dp->d_name, BACKUP_PREFIX))
 196                     break;
 197
 198                 inform("file \"%s/%s\" not deleted, continuing...",
 199                         folder, dp->d_name);
 200                 others = true;
 201                 continue;
 202         }
 203         if (m_unlink (dp->d_name) == NOTOK) {
 204             admonish (dp->d_name, "unable to unlink %s:", folder);
 205             others = true;
 206         }
 207     }
 208
 209     closedir (dd);
 210
 211     /*
 212      * Remove any relevant private sequences
 213      * or attributes from context file.
 214      */
 215     rma (folder);
 216
 217     if (chdir ("..") < 0) {
 218         advise ("..", "chdir");
 219     }
 220     if (!others && remdir (maildir))
 221         return OK;
 222
 223     inform("folder +%s not removed", folder);
 224     return NOTOK;
 225 }
 226
 227
 228 /*
 229  * Remove all the (private) sequence information for
 230  * this folder from the profile/context list.
 231  */
 232
 233 static void
 234 rma (char *folder)
 235 {
 236     int alen, j, plen;
 237     char *cp;
 238     struct node *np, *pp;
 239
 240     alen = LEN("atr-");
 241     plen = strlen (cp = m_mailpath (folder)) + 1;
 242
 243     /*
 244      * Search context list for keys that look like
 245      * "atr-something-folderpath", and remove them.
 246      */
 247     for (np = m_defs, pp = NULL; np; np = np->n_next) {
 248         if (ssequal ("atr-", np->n_name)
 249                 && (j = strlen (np->n_name) - plen) > alen
 250                 && *(np->n_name + j) == '-'
 251                 && strcmp (cp, np->n_name + j + 1) == 0) {
 252             if (!np->n_context)
 253                 inform("bug: context_del(key=\"%s\"), continuing...",
 254                     np->n_name);
 255             if (pp) {
 256                 pp->n_next = np->n_next;
 257                 np = pp;
 258             } else {
 259                 m_defs = np->n_next;
 260             }
 261             ctxflags |= CTXMOD;
 262         } else {
 263             pp = np;
 264         }
 265     }
 266
 267     free(cp);
 268 }