From: Andre Noll <maan@tuebingen.mpg.de>
Date: Wed, 6 Feb 2019 16:37:25 +0000 (+0100)
Subject: Simplify split_args().
X-Git-Tag: v1.0.1~5
X-Git-Url: http://git.tuebingen.mpg.de/?p=dss.git;a=commitdiff_plain;h=c3ad4e36f7ee18ab6fab4595fa2728a47c1db761

Simplify split_args().

Both callers pass the same value for the delimiters, so we can
remove the last argument of the function.
---

diff --git a/dss.c b/dss.c
index a219cfd..217dfaf 100644
--- a/dss.c
+++ b/dss.c
@@ -1567,7 +1567,7 @@ static void exit_hook(int exit_code)
 {
 	pid_t pid;
 	char **argv, *tmp = dss_strdup(OPT_STRING_VAL(DSS, EXIT_HOOK));
-	unsigned n = split_args(tmp, &argv, " \t");
+	unsigned n = split_args(tmp, &argv);
 
 	n++;
 	argv = dss_realloc(argv, (n + 1) * sizeof(char *));
diff --git a/exec.c b/exec.c
index 9e0565d..ece7ec2 100644
--- a/exec.c
+++ b/exec.c
@@ -56,7 +56,7 @@ void dss_exec_cmdline_pid(pid_t *pid, const char *cmdline)
 {
 	char **argv, *tmp = dss_strdup(cmdline);
 
-	split_args(tmp, &argv, " \t");
+	split_args(tmp, &argv);
 	dss_exec(pid, argv[0], argv);
 	free(argv);
 	free(tmp);
diff --git a/str.c b/str.c
index 623def1..1377630 100644
--- a/str.c
+++ b/str.c
@@ -212,20 +212,21 @@ __must_check __malloc char *dss_logname(void)
  *
  * \param args The string to be split.
  * \param argv_ptr Pointer to the list of substrings.
- * \param delim Delimiter.
  *
- * This function modifies \a args by replacing each occurrence of \a delim by
- * zero. A \p NULL-terminated array of pointers to char* is allocated dynamically
- * and these pointers are initialized to point to the broken-up substrings
- * within \a args. A pointer to this array is returned via \a argv_ptr.
+ * This function modifies the string given by the first argument by replacing
+ * all occurrences of space and '\t' characters by '\0'. A NULL-terminated
+ * array of pointers to char * is allocated dynamically, and these pointers are
+ * initialized to point to the broken-up substrings.  A pointer to this array
+ * is returned via the last argument.
  *
- * \return The number of substrings found in \a args.
+ * \return The number of substrings found.
  */
-unsigned split_args(char *args, char *** const argv_ptr, const char *delim)
+unsigned split_args(char *args, char *** const argv_ptr)
 {
 	char *p;
 	char **argv;
 	size_t n = 0, i, j;
+	const char delim[] = " \t";
 
 	p = args + strspn(args, delim);
 	for (;;) {
diff --git a/str.h b/str.h
index b7f2635..7b121ef 100644
--- a/str.h
+++ b/str.h
@@ -8,7 +8,7 @@ __must_check __malloc char *dss_strdup(const char *s);
 __must_check __malloc char *get_homedir(void);
 int dss_atoi64(const char *str, int64_t *value);
 __must_check __malloc char *dss_logname(void);
-unsigned split_args(char *args, char *** const argv_ptr, const char *delim);
+unsigned split_args(char *args, char *** const argv_ptr);
 
 
 /** \cond LLONG_MAX and LLONG_LIN might not be defined. */