From ee8e839569db30fc1d1a7fb712c4a81f6c0089b7 Mon Sep 17 00:00:00 2001 From: Antony Pavlov Date: Mon, 15 Jan 2018 00:22:51 +0300 Subject: parseopt: introduce parseopt_u16() and parseopt_str() Signed-off-by: Antony Pavlov Signed-off-by: Sascha Hauer --- lib/parseopt.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) (limited to 'lib/parseopt.c') diff --git a/lib/parseopt.c b/lib/parseopt.c index 8ff83019a7..8211733e3b 100644 --- a/lib/parseopt.c +++ b/lib/parseopt.c @@ -58,3 +58,67 @@ again: if (*endp == ',' || *endp == '\0') *val = v; } + +void parseopt_u16(const char *options, const char *opt, uint16_t *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 > U16_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); +} -- cgit v1.2.3