xiolayer.c

   1 /* source: xiolayer.c */
   2 /* Copyright Gerhard Rieger and contributors (see file CHANGES) */
   3 /* Published under the GNU General Public License V.2, see file COPYING */
   4
   5 /* this file contains the source for common options */
   6
   7 #include "xiosysincludes.h"
   8 #include "xioopen.h"
   9
  10 #include "xiolayer.h"
  11
  12 /****** for ALL addresses - by application ******/
  13 const struct optdesc opt_ignoreeof = { "ignoreeof", NULL, OPT_IGNOREEOF, GROUP_APPL, PH_LATE, TYPE_BOOL,  OFUNC_EXT, XIO_OFFSETOF(ignoreeof),   XIO_SIZEOF(ignoreeof) };
  14 const struct optdesc opt_cr        = { "cr",        NULL, OPT_CR,        GROUP_APPL, PH_LATE, TYPE_CONST, OFUNC_EXT, XIO_OFFSETOF(lineterm),    XIO_SIZEOF(lineterm), LINETERM_CR };
  15 const struct optdesc opt_crnl      = { "crnl",      NULL, OPT_CRNL,      GROUP_APPL, PH_LATE, TYPE_CONST, OFUNC_EXT, XIO_OFFSETOF(lineterm),   XIO_SIZEOF(lineterm), LINETERM_CRNL };
  16 const struct optdesc opt_readbytes = { "readbytes", "bytes", OPT_READBYTES, GROUP_APPL, PH_LATE, TYPE_SIZE_T, OFUNC_EXT, XIO_OFFSETOF(readbytes),   XIO_SIZEOF(readbytes) };
  17 const struct optdesc opt_lockfile  = { "lockfile",  NULL, OPT_LOCKFILE,  GROUP_APPL, PH_INIT, TYPE_FILENAME, OFUNC_EXT, 0, 0 };
  18 const struct optdesc opt_waitlock  = { "waitlock",  NULL, OPT_WAITLOCK,  GROUP_APPL, PH_INIT,  TYPE_FILENAME, OFUNC_EXT, 0, 0 };
  19 const struct optdesc opt_escape    = { "escape",    NULL,    OPT_ESCAPE,    GROUP_APPL, PH_INIT, TYPE_INT,   OFUNC_OFFSET, XIO_OFFSETOF(escape), sizeof(((xiosingle_t *)0)->escape) };
  20 /****** APPL addresses ******/
  21 #if WITH_RETRY
  22 const struct optdesc opt_forever   = { "forever",   NULL, OPT_FOREVER,   GROUP_RETRY, PH_INIT, TYPE_BOOL, OFUNC_EXT, XIO_OFFSETOF(forever),   XIO_SIZEOF(forever) };
  23 const struct optdesc opt_intervall = { "interval",  NULL, OPT_INTERVALL, GROUP_RETRY, PH_INIT, TYPE_TIMESPEC, OFUNC_EXT, XIO_OFFSETOF(intervall), XIO_SIZEOF(intervall) };
  24 const struct optdesc opt_retry     = { "retry",     NULL, OPT_RETRY,     GROUP_RETRY, PH_INIT, TYPE_UINT, OFUNC_EXT, XIO_OFFSETOF(retry),     XIO_SIZEOF(retry) };
  25 #endif
  26
  27 const struct optdesc opt_chdir       = { "chdir",       "cd", OPT_CHDIR,       GROUP_ADDR, PH_INIT,  TYPE_FILENAME, OFUNC_SPEC };
  28 const struct optdesc opt_umask       = { "umask",       NULL, OPT_UMASK,       GROUP_ADDR, PH_INIT,  TYPE_MODET,    OFUNC_SPEC };
  29
  30
  31 int xio_chdir(
  32         struct opt* opts,
  33         char **orig_dir)
  34 {
  35         char *tmp_dir = NULL;
  36
  37         if (retropt_string(opts, OPT_CHDIR, &tmp_dir) < 0)
  38                 return 0;
  39
  40         if ((*orig_dir = Malloc(PATH_MAX)) == NULL) {
  41                 free(tmp_dir);
  42                 return -1;
  43         }
  44
  45         if (getcwd(*orig_dir, PATH_MAX) == NULL) {
  46                 Error1("getcwd(<ptr>, PATH_MAX): %s", strerror(errno));
  47                 free(*orig_dir);
  48                 free(tmp_dir);
  49                 return -1;
  50         }
  51         *orig_dir = Realloc(*orig_dir, strlen(*orig_dir)+1);
  52
  53         if (Chdir(tmp_dir) < 0) {
  54                 Error2("chdir(\"%s\"): %s", tmp_dir, strerror(errno));
  55                 free(*orig_dir);
  56                 free(tmp_dir);
  57                 return -1;
  58         }
  59
  60         free(tmp_dir);
  61         return 1;
  62 }