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use enum for option indices

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This commit is contained in:
Ivan Trubach
2025-04-07 14:01:59 +03:00
parent 9ebeff621a
commit 8eb830d304
4 changed files with 612 additions and 402 deletions
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46
ip2net/ip2net.c
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@@ -225,6 +225,28 @@ static void exithelp(void)
#define PRINT_VER printf("self-built version %s %s\n\n", __DATE__, __TIME__)
#endif
enum opt_indices {
IDX_HELP,
IDX_H,
IDX_4,
IDX_6,
IDX_PREFIX_LENGTH,
IDX_V4_THRESHOLD,
IDX_V6_THRESHOLD,
IDX_LAST,
};
static const struct option long_options[] = {
[IDX_HELP] = {"help", no_argument, 0, 0},
[IDX_H] = {"h", no_argument, 0, 0},
[IDX_4] = {"4", no_argument, 0, 0},
[IDX_6] = {"6", no_argument, 0, 0},
[IDX_PREFIX_LENGTH] = {"prefix-length", required_argument, 0, 0},
[IDX_V4_THRESHOLD] = {"v4-threshold", required_argument, 0, 0},
[IDX_V6_THRESHOLD] = {"v6-threshold", required_argument, 0, 0},
[IDX_LAST] = {NULL, 0, NULL, 0},
};
static void parse_params(int argc, char *argv[])
{
int option_index = 0;
@@ -236,33 +258,23 @@ static void parse_params(int argc, char *argv[])
params.pctdiv = DEFAULT_PCTDIV;
params.v6_threshold = DEFAULT_V6_THRESHOLD;
const struct option long_options[] = {
{ "help",no_argument,0,0 },// optidx=0
{ "h",no_argument,0,0 },// optidx=1
{ "4",no_argument,0,0 },// optidx=2
{ "6",no_argument,0,0 },// optidx=3
{ "prefix-length",required_argument,0,0 },// optidx=4
{ "v4-threshold",required_argument,0,0 },// optidx=5
{ "v6-threshold",required_argument,0,0 },// optidx=6
{ NULL,0,NULL,0 }
};
while ((v = getopt_long_only(argc, argv, "", long_options, &option_index)) != -1)
{
if (v) exithelp();
switch (option_index)
{
case 0:
case 1:
case IDX_HELP:
case IDX_H:
PRINT_VER;
exithelp();
break;
case 2:
case IDX_4:
params.ipv6 = false;
break;
case 3:
case IDX_6:
params.ipv6 = true;
break;
case 4:
case IDX_PREFIX_LENGTH:
i = sscanf(optarg,"%u-%u",&plen1,&plen2);
if (i == 1) plen2 = plen1;
if (i<=0 || plen2<plen1 || !plen1 || !plen2)
@@ -271,7 +283,7 @@ static void parse_params(int argc, char *argv[])
exit(1);
}
break;
case 5:
case IDX_V4_THRESHOLD:
i = sscanf(optarg, "%u/%u", &params.pctmult, &params.pctdiv);
if (i!=2 || params.pctdiv<2 || params.pctmult<1 || params.pctmult>=params.pctdiv)
{
@@ -279,7 +291,7 @@ static void parse_params(int argc, char *argv[])
exit(1);
}
break;
case 6:
case IDX_V6_THRESHOLD:
i = sscanf(optarg, "%u", &params.v6_threshold);
if (i != 1 || params.v6_threshold<1)
{