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authorRich Felker <dalias@aerifal.cx>2014-12-10 20:25:32 -0500
committerRich Felker <dalias@aerifal.cx>2014-12-10 20:25:32 -0500
commit59f6232f85240f448da0d1fc77b3e09fe36eeed9 (patch)
treea24d913b08acb9a1149e5ec8a5b0c0c64d00ebfb /src/misc
parentf164875a84c35d0e0d132f99330d3fcda76ee7aa (diff)
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support options after non-option arguments in getopt_long (argv permutation)
Diffstat (limited to 'src/misc')
-rw-r--r--src/misc/getopt_long.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/misc/getopt_long.c b/src/misc/getopt_long.c
index 3d318ce5..643e5989 100644
--- a/src/misc/getopt_long.c
+++ b/src/misc/getopt_long.c
@@ -5,14 +5,53 @@
extern int __optpos, __optreset;
+static void permute(char *const *argv, int dest, int src)
+{
+ char **av = (char **)argv;
+ char *tmp = av[src];
+ int i;
+ for (i=src; i>dest; i--)
+ av[i] = av[i-1];
+ av[dest] = tmp;
+}
+
+static int __getopt_long_core(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly);
+
static int __getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly)
{
+ int ret, skipped, resumed;
if (!optind || __optreset) {
__optreset = 0;
__optpos = 0;
optind = 1;
}
if (optind >= argc || !argv[optind]) return -1;
+ skipped = optind;
+ if (optstring[0] != '+' && optstring[0] != '-') {
+ int i;
+ for (i=optind; ; i++) {
+ if (i >= argc || !argv[i]) return -1;
+ if (argv[i][0] != '-') continue;
+ if (!argv[i][1]) continue;
+ if (argv[i][1] == '-' && !argv[i][2]) return -1;
+ break;
+ }
+ optind = i;
+ }
+ resumed = optind;
+ ret = __getopt_long_core(argc, argv, optstring, longopts, idx, longonly);
+ if (resumed > skipped) {
+ int i, cnt = optind-resumed;
+ for (i=0; i<cnt; i++)
+ permute(argv, skipped, optind-1);
+ optind = skipped + cnt;
+ }
+ return ret;
+}
+
+static int __getopt_long_core(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly)
+{
+
if (argv[optind][0] == '-' &&
((longonly && argv[optind][1]) ||
(argv[optind][1] == '-' && argv[optind][2])))