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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1f6323e9aa7sm70381125ad.192.2024.06.03.17.47.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Jun 2024 17:47:44 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , Tyler Retzlaff , Dmitry Kozlyuk , Pallavi Kadam Subject: [PATCH v21 02/14] windows: make getopt functions have const properties Date: Mon, 3 Jun 2024 17:44:50 -0700 Message-ID: <20240604004731.6654-3-stephen@networkplumber.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240604004731.6654-1-stephen@networkplumber.org> References: <20200814173441.23086-1-stephen@networkplumber.org> <20240604004731.6654-1-stephen@networkplumber.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Having different prototypes on different platforms can lead to lots of unnecessary workarounds. Looks like the version of getopt used from windows was based on an older out of date version from FreeBSD. This patch changes getopt, getopt_long, etc to have the same const attributes as Linux and FreeBSD. The changes are derived from the current FreeBSD version of getopt_long. Signed-off-by: Stephen Hemminger Acked-by: Tyler Retzlaff Acked-by: Dmitry Kozlyuk --- lib/eal/windows/getopt.c | 23 ++++++++++++----------- lib/eal/windows/include/getopt.h | 8 ++++---- 2 files changed, 16 insertions(+), 15 deletions(-) diff --git a/lib/eal/windows/getopt.c b/lib/eal/windows/getopt.c index a1f51c6c23..50ff71b930 100644 --- a/lib/eal/windows/getopt.c +++ b/lib/eal/windows/getopt.c @@ -20,7 +20,7 @@ #include #include -const char *optarg; /* argument associated with option */ +char *optarg; /* argument associated with option */ int opterr = 1; /* if error message should be printed */ int optind = 1; /* index into parent argv vector */ int optopt = '?'; /* character checked for validity */ @@ -39,9 +39,9 @@ static void pass(const char *a) {(void) a; } #define BADARG ((*options == ':') ? (int)':' : (int)'?') #define INORDER 1 -#define EMSG "" +static char EMSG[] = ""; -static const char *place = EMSG; /* option letter processing */ +static char *place = EMSG; /* option letter processing */ /* XXX: set optreset to 1 rather than these two */ static int nonopt_start = -1; /* first non option argument (for permute) */ @@ -80,7 +80,7 @@ gcd(int a, int b) */ static void permute_args(int panonopt_start, int panonopt_end, int opt_end, - char **nargv) + char * const *nargv) { int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos; char *swap; @@ -101,11 +101,12 @@ permute_args(int panonopt_start, int panonopt_end, int opt_end, pos -= nnonopts; else pos += nopts; + swap = nargv[pos]; /* LINTED const cast */ - ((char **) nargv)[pos] = nargv[cstart]; + ((char **)(uintptr_t)nargv)[pos] = nargv[cstart]; /* LINTED const cast */ - ((char **)nargv)[cstart] = swap; + ((char **)(uintptr_t)nargv)[cstart] = swap; } } } @@ -116,7 +117,7 @@ permute_args(int panonopt_start, int panonopt_end, int opt_end, * Returns -1 if short_too is set and the option does not match long_options. */ static int -parse_long_options(char **nargv, const char *options, +parse_long_options(char * const *nargv, const char *options, const struct option *long_options, int *idx, int short_too) { const char *current_argv; @@ -236,7 +237,7 @@ parse_long_options(char **nargv, const char *options, * Parse argc/argv argument vector. Called by user level routines. */ static int -getopt_internal(int nargc, char **nargv, const char *options, +getopt_internal(int nargc, char *const nargv[], const char *options, const struct option *long_options, int *idx, int flags) { char *oli; /* option letter list index */ @@ -434,7 +435,7 @@ getopt_internal(int nargc, char **nargv, const char *options, * Parse argc/argv argument vector. */ int -getopt(int nargc, char *nargv[], const char *options) +getopt(int nargc, char *const nargv[], const char *options) { return getopt_internal(nargc, nargv, options, NULL, NULL, FLAG_PERMUTE); @@ -445,7 +446,7 @@ getopt(int nargc, char *nargv[], const char *options) * Parse argc/argv argument vector. */ int -getopt_long(int nargc, char *nargv[], const char *options, +getopt_long(int nargc, char *const nargv[], const char *options, const struct option *long_options, int *idx) { @@ -458,7 +459,7 @@ getopt_long(int nargc, char *nargv[], const char *options, * Parse argc/argv argument vector. */ int -getopt_long_only(int nargc, char *nargv[], const char *options, +getopt_long_only(int nargc, char *const nargv[], const char *options, const struct option *long_options, int *idx) { diff --git a/lib/eal/windows/include/getopt.h b/lib/eal/windows/include/getopt.h index 6f57af454b..e4cf6873cb 100644 --- a/lib/eal/windows/include/getopt.h +++ b/lib/eal/windows/include/getopt.h @@ -44,7 +44,7 @@ /** argument to current option, or NULL if it has none */ -extern const char *optarg; +extern char *optarg; /** Current position in arg string. Starts from 1. * Setting to 0 resets state. */ @@ -80,14 +80,14 @@ struct option { }; /** Compat: getopt */ -int getopt(int argc, char *argv[], const char *options); +int getopt(int argc, char *const argv[], const char *options); /** Compat: getopt_long */ -int getopt_long(int argc, char *argv[], const char *options, +int getopt_long(int argc, char *const argv[], const char *options, const struct option *longopts, int *longindex); /** Compat: getopt_long_only */ -int getopt_long_only(int nargc, char *argv[], const char *options, +int getopt_long_only(int nargc, char *const argv[], const char *options, const struct option *long_options, int *idx); -- 2.43.0