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#include <common.h>
#include "parseopt.h"
void parseopt_b(const char *options, const char *opt, bool *val)
{
const char *start;
size_t optlen = strlen(opt);
again:
start = strstr(options, opt);
if (!start) {
*val = false;
return;
}
if (start > options && start[-1] != ',') {
options = start;
goto again;
}
if (start[optlen] != ',' && start[optlen] != '\0') {
options = start;
goto again;
}
*val = true;
}
void parseopt_hu(const char *options, const char *opt, unsigned short *val)
{
const char *start;
size_t optlen = strlen(opt);
ulong v;
char *endp;
again:
start = strstr(options, opt);
if (!start)
return;
if (start > options && start[-1] != ',') {
options = start;
goto again;
}
if (start[optlen] != '=') {
options = start;
goto again;
}
v = simple_strtoul(start + optlen + 1, &endp, 0);
if (v > USHRT_MAX)
return;
if (*endp == ',' || *endp == '\0')
*val = v;
}
void parseopt_str(const char *options, const char *opt, char **val)
{
const char *start;
size_t optlen = strlen(opt);
char *endp;
char *parsed;
again:
start = strstr(options, opt);
if (!start)
return;
if (start > options && start[-1] != ',') {
options = start;
goto again;
}
if (start[optlen] != '=') {
options = start;
goto again;
}
parsed = (char *)start + optlen + 1;
endp = parsed;
while (*endp != '\0' && *endp != ',') {
endp++;
}
*val = xstrndup(parsed, endp - parsed);
}
void parseopt_llu_suffix(const char *options, const char *opt,
unsigned long long *val)
{
const char *start;
size_t optlen = strlen(opt);
unsigned long long v;
char *endp;
again:
start = strstr(options, opt);
if (!start)
return;
if (start > options && start[-1] != ',') {
options = start;
goto again;
}
if (start[optlen] != '=') {
options = start;
goto again;
}
v = strtoull_suffix(start + optlen + 1, &endp, 0);
if (*endp == ',' || *endp == '\0')
*val = v;
}
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