[PATCH 07/16] lib/strutils: move parse_switch() from setterm(1) to library

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To allow sharing the code with other utilities.

Signed-off-by: Sami Kerola <kerolasa@xxxxxx>
---
 include/strutils.h   |  2 ++
 lib/strutils.c       |  8 ++++++++
 term-utils/setterm.c | 14 --------------
 3 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/include/strutils.h b/include/strutils.h
index 4d8463a..ee8c7cb 100644
--- a/include/strutils.h
+++ b/include/strutils.h
@@ -36,6 +36,8 @@ extern void strtotimeval_or_err(const char *str, struct timeval *tv,
 
 extern int isdigit_string(const char *str);
 
+extern int parse_switch(const char *arg, const char *a, const char *b);
+
 #ifndef HAVE_MEMPCPY
 extern void *mempcpy(void *restrict dest, const void *restrict src, size_t n);
 #endif
diff --git a/lib/strutils.c b/lib/strutils.c
index c4f9600..f6154aa 100644
--- a/lib/strutils.c
+++ b/lib/strutils.c
@@ -181,6 +181,14 @@ int isdigit_string(const char *str)
 	return p && p > str && !*p;
 }
 
+int parse_switch(const char *arg, const char *a, const char *b)
+{
+	if (strcmp(arg, a) == 0)
+		return 1;
+	else if (strcmp(arg, b) == 0)
+		return 0;
+	errx(STRTOXX_EXIT_CODE, _("argument error: %s"), arg);
+}
 
 #ifndef HAVE_MEMPCPY
 void *mempcpy(void *restrict dest, const void *restrict src, size_t n)
diff --git a/term-utils/setterm.c b/term-utils/setterm.c
index 76fedba..253f84f 100644
--- a/term-utils/setterm.c
+++ b/term-utils/setterm.c
@@ -178,20 +178,6 @@ struct setterm_control {
 	    opt_powerdown:1, opt_blength:1, opt_bfreq:1;
 };
 
-/* Command line parsing routines.
- *
- * Note that it is an error for a given option to be invoked more than once.
- */
-
-static int parse_switch(const char *arg, const char *t, const char *f)
-{
-	if (strcmp(arg, t) == 0)
-		return 1;
-	else if (strcmp(arg, f) == 0)
-		return 0;
-	errx(EXIT_FAILURE, _("argument error: %s"), arg);
-}
-
 static int parse_febg_color(const char *arg)
 {
 	int color;
-- 
2.3.0

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