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authorLorry Tar Creator <lorry-tar-importer@baserock.org>2014-12-02 09:01:21 +0000
committer <>2014-12-04 16:11:25 +0000
commitbdab5265fcbf3f472545073a23f8999749a9f2b9 (patch)
treec6018dd03dea906f8f1fb5f105f05b71a7dc250a /sntp/libopts/compat/strchr.c
downloadntp-d4b7cd9723cce9561fa15f74b90b85a3a61b5ef8.tar.gz
Imported from /home/lorry/working-area/delta_ntp/ntp-dev-4.2.7p482.tar.gz.ntp-dev-4.2.7p482
Diffstat (limited to 'sntp/libopts/compat/strchr.c')
-rw-r--r--sntp/libopts/compat/strchr.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/sntp/libopts/compat/strchr.c b/sntp/libopts/compat/strchr.c
new file mode 100644
index 0000000..f409387
--- /dev/null
+++ b/sntp/libopts/compat/strchr.c
@@ -0,0 +1,66 @@
+/*
+ SYNOPSIS
+ #include <string.h>
+
+ char *strchr(char const *s, int c);
+
+ char *strrchr(char const *s, int c);
+
+ DESCRIPTION
+ The strchr() function returns a pointer to the first occurrence of the
+ character c in the string s.
+
+ The strrchr() function returns a pointer to the last occurrence of the
+ character c in the string s.
+
+ Here "character" means "byte" - these functions do not work with wide
+ or multi-byte characters.
+
+ RETURN VALUE
+ The strchr() and strrchr() functions return a pointer to the matched
+ character or NULL if the character is not found.
+
+ CONFORMING TO
+ SVID 3, POSIX, BSD 4.3, ISO 9899
+*/
+
+static char *
+strchr(char const *s, int c);
+
+static char *
+strrchr(char const *s, int c);
+
+static char *
+strchr(char const *s, int c)
+{
+ do {
+ if ((unsigned char)*s == (unsigned char)c)
+ return s;
+
+ } while (*(++s) != NUL);
+
+ return NULL;
+}
+
+static char *
+strrchr(char const *s, int c)
+{
+ char const *e = s + strlen(s);
+
+ for (;;) {
+ if (--e < s)
+ break;
+
+ if ((unsigned char)*e == (unsigned char)c)
+ return e;
+ }
+ return NULL;
+}
+
+/*
+ * Local Variables:
+ * mode: C
+ * c-file-style: "stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * end of compat/strsignal.c */