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/* ISC license. */
#include <sys/uio.h>
#include <errno.h>
#include <glob.h>
#include <string.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <skalibs/netstring.h>
#include <execline/execline.h>
#include "exlsn.h"
static int elgloberrfunc (char const *s, int e)
{
errno = e ;
strerr_warnw2sys("while globbing, error reading ", s) ;
return 0 ;
}
int exlsn_elglob (int argc, char const **argv, char const *const *envp, exlsn_t *info)
{
glob_t pglob ;
elsubst_t blah = { .var = info->vars.len, .value = info->values.len, .n = 1 } ;
int flags = GLOB_NOSORT | GLOB_NOCHECK ;
int verbose = 0 ;
int dochomp = 0 ;
char const *delim = 0 ;
subgetopt localopt = SUBGETOPT_ZERO ;
for (;;)
{
int opt = subgetopt_r(argc, argv, "vwsme0nd:", &localopt) ;
if (opt < 0) break ;
switch (opt)
{
case 'v' : verbose = 1 ; break ;
case 'w' : flags |= GLOB_ERR ; break ;
case 's' : flags &= ~GLOB_NOSORT ; break ;
case 'm' : flags |= GLOB_MARK ; break ;
case 'e' : flags |= GLOB_NOESCAPE ; break ;
case '0' : flags &= ~GLOB_NOCHECK ; break ;
case 'n' : dochomp = 1 ; break ;
case 'd' : delim = localopt.arg ; break ;
default : return -3 ;
}
}
argc -= localopt.ind ; argv += localopt.ind ;
if (!delim) delim = "" ; else if (!*delim) delim = 0 ;
if (argc < 2) return -3 ;
if (!*argv[0] || el_vardupl(argv[0], info->vars.s, info->vars.len)) return -2 ;
if (!stralloc_catb(&info->vars, argv[0], strlen(argv[0]) + 1)) return -1 ;
pglob.gl_offs = 0 ;
switch (glob(argv[1], flags, verbose ? &elgloberrfunc : 0, &pglob))
{
case 0 : break ;
case GLOB_NOMATCH:
{
pglob.gl_pathc = 0 ;
pglob.gl_pathv = 0 ;
break ;
}
default: goto err ;
}
for (size_t i = 0 ; i < pglob.gl_pathc ; i++)
if (delim ? !stralloc_cats(&info->values, pglob.gl_pathv[i]) || !stralloc_catb(&info->values, delim, 1) :
!netstring_appendb(&info->values, pglob.gl_pathv[i], strlen(pglob.gl_pathv[i])))
goto globerr ;
if (delim && *delim && dochomp) info->values.len-- ;
if (delim && !*delim) blah.n = pglob.gl_pathc ;
else if (!stralloc_0(&info->values)) goto globerr ;
globfree(&pglob) ;
if (!genalloc_append(elsubst_t, &info->data, &blah)) goto err ;
(void)envp ;
return localopt.ind + 2 ;
globerr:
globfree(&pglob) ;
err:
info->vars.len = blah.var ;
info->values.len = blah.value ;
return -1 ;
}
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