X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=parse.c;h=8aaf7992754f1de3e42211a1e3b9c1ef05eddb06;hp=27e7336b49af99720886905928a69058e42f3bf1;hb=3f36aa6b73eb5730d7de716391dcf0735e886d10;hpb=28d7c363e2f82d09cf7f6aa772d255712aff5c5c

diff --git a/parse.c b/parse.c
index 27e7336b..8aaf7992 100644
--- a/parse.c
+++ b/parse.c
@@ -199,9 +199,9 @@ static unsigned long long get_mult_bytes(const char *str, int len, void *data,
 	if (len < 2)
 		return __get_mult_bytes(str, data, percent);
 
-        /*
-         * Go forward until we hit a non-digit, or +/- sign
-         */
+	/*
+	 * Go forward until we hit a non-digit, or +/- sign
+	 */
 	while ((p - str) <= len) {
 		if (!isdigit((int) *p) &&
 		    (((*p != '+') && (*p != '-')) || digit_seen))
@@ -273,6 +273,8 @@ void strip_blank_front(char **p)
 {
 	char *s = *p;
 
+	if (!strlen(s))
+		return;
 	while (isspace((int) *s))
 		s++;
 
@@ -283,6 +285,9 @@ void strip_blank_end(char *p)
 {
 	char *start = p, *s;
 
+	if (!strlen(p))
+		return;
+
 	s = strchr(p, ';');
 	if (s)
 		*s = '\0';
@@ -496,45 +501,54 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
 	case FIO_OPT_STR_STORE: {
 		fio_opt_str_fn *fn = o->cb;
 
-		posval_sort(o, posval);
+		if (o->roff1 || o->off1) {
+			if (o->roff1)
+				cp = (char **) o->roff1;
+			else if (o->off1)
+				cp = td_var(data, o->off1);
 
-		if (!o->posval[0].ival) {
-			vp = NULL;
-			goto match;
+			*cp = strdup(ptr);
+		} else {
+			cp = NULL;
 		}
 
-		ret = 1;
-		for (i = 0; i < PARSE_MAX_VP; i++) {
-			vp = &posval[i];
-			if (!vp->ival || vp->ival[0] == '\0')
-				continue;
-			all_skipped = 0;
-			if (!strncmp(vp->ival, ptr, opt_len(ptr))) {
-				char *rest;
+		if (fn)
+			ret = fn(data, ptr);
+		else if (o->posval[0].ival) {
+			posval_sort(o, posval);
 
-				ret = 0;
-				if (vp->cb)
-					fn = vp->cb;
-match:
-				if (o->roff1)
-					cp = (char **) o->roff1;
-				else
-					cp = td_var(data, o->off1);
-				*cp = strdup(ptr);
-				rest = strstr(*cp, ":");
-				if (rest) {
-					*rest = '\0';
-					ptr = rest + 1;
-				} else if (vp && vp->cb)
-					ptr = NULL;
-				break;
+			ret = 1;
+			for (i = 0; i < PARSE_MAX_VP; i++) {
+				vp = &posval[i];
+				if (!vp->ival || vp->ival[0] == '\0')
+					continue;
+				all_skipped = 0;
+				if (!strncmp(vp->ival, ptr, opt_len(ptr))) {
+					char *rest;
+
+					ret = 0;
+					if (vp->cb)
+						fn = vp->cb;
+					rest = strstr(*cp ?: ptr, ":");
+					if (rest) {
+						if (*cp)
+							*rest = '\0';
+						ptr = rest + 1;
+					} else
+						ptr = NULL;
+					break;
+				}
 			}
 		}
 
-		if (ret && !all_skipped)
-			show_option_values(o);
-		else if (fn && ptr)
-			ret = fn(data, ptr);
+		if (!all_skipped) {
+			if (ret && !*cp)
+				show_option_values(o);
+			else if (ret && *cp)
+				ret = 0;
+			else if (fn && ptr)
+				ret = fn(data, ptr);
+		}
 
 		break;
 	}
@@ -723,7 +737,7 @@ static int handle_option(struct fio_option *o, const char *__ptr, void *data)
 	return ret;
 }
 
-static struct fio_option *get_option(const char *opt,
+static struct fio_option *get_option(char *opt,
 				     struct fio_option *options, char **post)
 {
 	struct fio_option *o;
@@ -733,7 +747,7 @@ static struct fio_option *get_option(const char *opt,
 	if (ret) {
 		*post = ret;
 		*ret = '\0';
-		ret = (char *) opt;
+		ret = opt;
 		(*post)++;
 		strip_blank_end(ret);
 		o = find_option(options, ret);
@@ -747,24 +761,27 @@ static struct fio_option *get_option(const char *opt,
 
 static int opt_cmp(const void *p1, const void *p2)
 {
-	struct fio_option *o1, *o2;
-	char *s1, *s2, *foo;
+	struct fio_option *o;
+	char *s, *foo;
 	int prio1, prio2;
 
-	s1 = strdup(*((char **) p1));
-	s2 = strdup(*((char **) p2));
-
-	o1 = get_option(s1, fio_options, &foo);
-	o2 = get_option(s2, fio_options, &foo);
-
 	prio1 = prio2 = 0;
-	if (o1)
-		prio1 = o1->prio;
-	if (o2)
-		prio2 = o2->prio;
 
-	free(s1);
-	free(s2);
+	if (*(char **)p1) {
+		s = strdup(*((char **) p1));
+		o = get_option(s, fio_options, &foo);
+		if (o)
+			prio1 = o->prio;
+		free(s);
+	}
+	if (*(char **)p2) {
+		s = strdup(*((char **) p2));
+		o = get_option(s, fio_options, &foo);
+		if (o)
+			prio2 = o->prio;
+		free(s);
+	}
+
 	return prio2 - prio1;
 }
 
@@ -793,83 +810,33 @@ int parse_cmd_option(const char *opt, const char *val,
 	return 1;
 }
 
-/*
- * Return a copy of the input string with substrings of the form ${VARNAME}
- * substituted with the value of the environment variable VARNAME.  The
- * substitution always occurs, even if VARNAME is empty or the corresponding
- * environment variable undefined.
- */
-static char *option_dup_subs(const char *opt)
+int parse_option(char *opt, const char *input,
+		 struct fio_option *options, struct fio_option **o, void *data)
 {
-	char out[OPT_LEN_MAX+1];
-	char in[OPT_LEN_MAX+1];
-	char *outptr = out;
-	char *inptr = in;
-	char *ch1, *ch2, *env;
-	ssize_t nchr = OPT_LEN_MAX;
-	size_t envlen;
-
-	if (strlen(opt) + 1 > OPT_LEN_MAX) {
-		log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
-		return NULL;
-	}
-
-	in[OPT_LEN_MAX] = '\0';
-	strncpy(in, opt, OPT_LEN_MAX);
-
-	while (*inptr && nchr > 0) {
-		if (inptr[0] == '$' && inptr[1] == '{') {
-			ch2 = strchr(inptr, '}');
-			if (ch2 && inptr+1 < ch2) {
-				ch1 = inptr+2;
-				inptr = ch2+1;
-				*ch2 = '\0';
-
-				env = getenv(ch1);
-				if (env) {
-					envlen = strlen(env);
-					if (envlen <= nchr) {
-						memcpy(outptr, env, envlen);
-						outptr += envlen;
-						nchr -= envlen;
-					}
-				}
-
-				continue;
-			}
-		}
-
-		*outptr++ = *inptr++;
-		--nchr;
-	}
+	char *post;
 
-	*outptr = '\0';
-	return strdup(out);
-}
-
-int parse_option(const char *opt, struct fio_option *options, void *data)
-{
-	struct fio_option *o;
-	char *post, *tmp;
-
-	tmp = option_dup_subs(opt);
-	if (!tmp)
+	if (!opt) {
+		log_err("fio: failed parsing %s\n", input);
+		*o = NULL;
 		return 1;
+	}
 
-	o = get_option(tmp, options, &post);
-	if (!o) {
-		log_err("Bad option <%s>\n", tmp);
-		free(tmp);
+	*o = get_option(opt, options, &post);
+	if (!*o) {
+		if (post) {
+			int len = strlen(opt);
+			if (opt + len + 1 != post)
+				memmove(opt + len + 1, post, strlen(post));
+			opt[len] = '=';
+		}
 		return 1;
 	}
 
-	if (!handle_option(o, post, data)) {
-		free(tmp);
+	if (!handle_option(*o, post, data)) {
 		return 0;
 	}
 
-	log_err("fio: failed parsing %s\n", opt);
-	free(tmp);
+	log_err("fio: failed parsing %s\n", input);
 	return 1;
 }
 
@@ -1094,3 +1061,22 @@ void options_init(struct fio_option *options)
 	for (o = &options[0]; o->name; o++)
 		option_init(o);
 }
+
+void options_free(struct fio_option *options, void *data)
+{
+	struct fio_option *o;
+	char **ptr;
+
+	dprint(FD_PARSE, "free options\n");
+
+	for (o = &options[0]; o->name; o++) {
+		if (o->type != FIO_OPT_STR_STORE || !o->off1)
+			continue;
+
+		ptr = td_var(data, o->off1);
+		if (*ptr) {
+			free(*ptr);
+			*ptr = NULL;
+		}
+	}
+}