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path: root/src/libexecline/exlsn_elglob.c
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Diffstat (limited to 'src/libexecline/exlsn_elglob.c')
-rw-r--r--src/libexecline/exlsn_elglob.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/src/libexecline/exlsn_elglob.c b/src/libexecline/exlsn_elglob.c
new file mode 100644
index 0000000..67e939b
--- /dev/null
+++ b/src/libexecline/exlsn_elglob.c
@@ -0,0 +1,78 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <glob.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/genalloc.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 ;
+ subgetopt_t localopt = SUBGETOPT_ZERO ;
+ elsubst_t blah ;
+ int flags = GLOB_NOSORT | GLOB_NOCHECK ;
+ unsigned int i = 0 ;
+ int verbose = 0 ;
+ blah.var = info->vars.len ;
+ blah.value = info->values.len ;
+ for (;;)
+ {
+ register int opt = subgetopt_r(argc, argv, "vwsme0", &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 ;
+ default : return -3 ;
+ }
+ }
+ argc -= localopt.ind ; argv += localopt.ind ;
+
+ 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], str_len(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 ( ; i < (unsigned int)pglob.gl_pathc ; i++)
+ if (!stralloc_catb(&info->values, pglob.gl_pathv[i], str_len(pglob.gl_pathv[i]) + 1))
+ goto globerr ;
+ blah.n = pglob.gl_pathc ;
+ 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 ;
+}