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authorLaurent Bercot <ska-skaware@skarnet.org>2014-09-19 02:53:32 +0000
committerLaurent Bercot <ska-skaware@skarnet.org>2014-09-19 02:53:32 +0000
commitbea0037dbdd979603fb0b5be8b43f5478c1f6fec (patch)
tree5776ae3af5a3e83d41c7087f70713952b6360988 /src/skaembutils/s6-ls.c
downloads6-portable-utils-bea0037dbdd979603fb0b5be8b43f5478c1f6fec.tar.xz
initial commit
Diffstat (limited to 'src/skaembutils/s6-ls.c')
-rw-r--r--src/skaembutils/s6-ls.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/src/skaembutils/s6-ls.c b/src/skaembutils/s6-ls.c
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+++ b/src/skaembutils/s6-ls.c
@@ -0,0 +1,56 @@
+/* ISC license. */
+
+#include <skalibs/sgetopt.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/direntry.h>
+#include <skalibs/buffer.h>
+#include <skalibs/strerr2.h>
+
+#define USAGE "s6-ls [ -0 ] [ -a | -A ] [ -x exclude ] dir"
+
+int main (int argc, char const *const *argv)
+{
+ unsigned int all = 0 ;
+ char const *exclude = 0 ;
+ char delim = '\n' ;
+ PROG = "s6-ls" ;
+ {
+ subgetopt_t l = SUBGETOPT_ZERO ;
+ for (;;)
+ {
+ register int opt = subgetopt_r(argc, argv, "0aAx:", &l) ;
+ if (opt == -1) break ;
+ switch (opt)
+ {
+ case '0': delim = '\0' ; break ;
+ case 'a': all = 1 ; break ;
+ case 'A': all = 2 ; break ;
+ case 'x': exclude = l.arg ; break ;
+ default : strerr_dieusage(100, USAGE) ;
+ }
+ }
+ argc -= l.ind ; argv += l.ind ;
+ }
+ if (!argc) strerr_dieusage(100, USAGE) ;
+ {
+ direntry *d ;
+ DIR *dir = opendir(*argv) ;
+ if (!dir)
+ strerr_diefu2sys(111, "open directory ", *argv) ;
+ while ((d = readdir(dir)))
+ {
+ if ((d->d_name[0] == '.') && (all < 2))
+ {
+ if (!all || !d->d_name[1] || ((d->d_name[1] == '.') && !d->d_name[2])) continue ;
+ }
+ if (exclude && !str_diff(exclude, d->d_name)) continue ;
+ if ((buffer_puts(buffer_1, d->d_name) < 0)
+ || (buffer_put(buffer_1, &delim, 1) < 0))
+ strerr_diefu1sys(111, "write to stdout") ;
+ }
+ dir_close(dir) ;
+ }
+ if (!buffer_flush(buffer_1))
+ strerr_diefu1sys(111, "write to stdout") ;
+ return 0 ;
+}