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authorLaurent Bercot <ska-skaware@skarnet.org>2023-02-11 03:12:21 +0000
committerLaurent Bercot <ska@appnovation.com>2023-02-11 03:12:21 +0000
commit774654ad56fc9304e4a064232760835c7a2a6c13 (patch)
tree3f539521073866497ff0370d8a6464c9356cadb4 /src/skaembutils/s6-sort.c
parent790c8681d3451b61a536871dad234fc294796fd8 (diff)
downloads6-portable-utils-774654ad56fc9304e4a064232760835c7a2a6c13.tar.gz
Add multicall configuration
Signed-off-by: Laurent Bercot <ska@appnovation.com>
Diffstat (limited to 'src/skaembutils/s6-sort.c')
-rw-r--r--src/skaembutils/s6-sort.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/src/skaembutils/s6-sort.c b/src/skaembutils/s6-sort.c
deleted file mode 100644
index 66955fe..0000000
--- a/src/skaembutils/s6-sort.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/* ISC license. */
-
-#include <string.h>
-#include <strings.h>
-#include <stdlib.h>
-#include <errno.h>
-
-#include <skalibs/allreadwrite.h>
-#include <skalibs/sgetopt.h>
-#include <skalibs/buffer.h>
-#include <skalibs/strerr.h>
-#include <skalibs/stralloc.h>
-#include <skalibs/genalloc.h>
-#include <skalibs/djbunix.h>
-#include <skalibs/skamisc.h>
-
-#define USAGE "s6-sort [ -bcfru0 ]"
-
-typedef int strncmp_func (char const *, char const *, size_t) ;
-typedef strncmp_func *strncmp_func_ref ;
-typedef int qsortcmp_func (void const *, void const *) ;
-typedef qsortcmp_func *qsortcmp_func_ref ;
-
-typedef struct sort_global_s sort_global, *sort_global_ref ;
-struct sort_global_s
-{
- strncmp_func_ref comp ;
- unsigned char flagnoblanks : 1 ;
- unsigned char flagreverse : 1 ;
- unsigned char flaguniq : 1 ;
-} ;
-#define SORT_GLOBAL_ZERO { .flagnoblanks = 0, .flagreverse = 0, .flaguniq = 0, .comp = &strncmp }
-
-static sort_global_ref sort_G ;
-
-static int compit (char const *s1, size_t n1, char const *s2, size_t n2)
-{
- int r ;
- if (sort_G->flagnoblanks)
- {
- while ((*s1 == ' ') || (*s1 == '\t')) (s1++, n1--) ;
- while ((*s2 == ' ') || (*s2 == '\t')) (s2++, n2--) ;
- }
- r = (*sort_G->comp)(s1, s2, n1 < n2 ? n1 : n2) ;
- if (!r) r = n1 - n2 ;
- return sort_G->flagreverse ? -r : r ;
-}
-
-static int sacmp (stralloc const *a, stralloc const *b)
-{
- return compit(a->s, a->len - 1, b->s, b->len - 1) ;
-}
-
-static ssize_t sort_slurplines (genalloc *lines, char sep)
-{
- ssize_t i = 0 ;
- for (;; i++)
- {
- stralloc sa = STRALLOC_ZERO ;
- int r = skagetln(buffer_0, &sa, sep) ;
- if (!r) break ;
- if ((r < 0) && ((errno != EPIPE) || !stralloc_catb(&sa, &sep, 1)))
- return -1 ;
- stralloc_shrink(&sa) ;
- if (!genalloc_append(stralloc, lines, &sa)) return -1 ;
- }
- return i ;
-}
-
-static void sort_uniq (genalloc *lines)
-{
- size_t len = genalloc_len(stralloc, lines) ;
- stralloc *s = genalloc_s(stralloc, lines) ;
- size_t i = 1 ;
- for (; i < len ; i++)
- if (!sacmp(s+i-1, s+i)) stralloc_free(s+i-1) ;
-}
-
-static ssize_t sort_outputlines (stralloc const *s, size_t len)
-{
- size_t i = 0 ;
- for (; i < len ; i++)
- if (buffer_put(buffer_1, s[i].s, s[i].len) < 0) return 0 ;
- return buffer_flush(buffer_1) ;
-}
-
-static int sort_check (stralloc const *s, size_t len)
-{
- size_t i = 1 ;
- for (; i < len ; i++)
- if (sacmp(s+i-1, s+i) >= !sort_G->flaguniq) return 0 ;
- return 1 ;
-}
-
-int main (int argc, char const *const *argv)
-{
- genalloc lines = GENALLOC_ZERO ; /* array of stralloc */
- int flagcheck = 0 ;
- char sep = '\n' ;
- sort_global globals = SORT_GLOBAL_ZERO ;
- sort_G = &globals ;
- PROG = "s6-sort" ;
- {
- subgetopt l = SUBGETOPT_ZERO ;
- for (;;)
- {
- int opt = subgetopt_r(argc, argv, "bcfru0", &l) ;
- if (opt == -1) break ;
- switch (opt)
- {
- case 'b' : sort_G->flagnoblanks = 1 ; break ;
- case 'c' : flagcheck = 1 ; break ;
- case 'f' : sort_G->comp = &strncasecmp ; break ;
- case 'r' : sort_G->flagreverse = 1 ; break ;
- case 'u' : sort_G->flaguniq = 1 ; break ;
- case '0' : sep = '\0' ; break ;
- default : strerr_dieusage(100, USAGE) ;
- }
- }
- argc -= l.ind ; argv += l.ind ;
- }
-
- if (sort_slurplines(&lines, sep) < 0) strerr_diefu1sys(111, "read from stdin") ;
- if (flagcheck) return !sort_check(genalloc_s(stralloc, &lines), genalloc_len(stralloc, &lines)) ;
- qsort(genalloc_s(stralloc, &lines), genalloc_len(stralloc, &lines), sizeof(stralloc), (qsortcmp_func_ref)&sacmp) ;
- if (sort_G->flaguniq) sort_uniq(&lines) ;
- if (!sort_outputlines(genalloc_s(stralloc, &lines), genalloc_len(stralloc, &lines)))
- strerr_diefu1sys(111, "write to stdout") ;
- return 0 ;
-}