From 4e09bca9e34c226b6d7e34b4fa11248405fd988e Mon Sep 17 00:00:00 2001 From: Anton Kling Date: Sun, 22 Oct 2023 19:50:38 +0200 Subject: Move everything into a new repo. --- userland/libc/string/strncasecmp.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 userland/libc/string/strncasecmp.c (limited to 'userland/libc/string/strncasecmp.c') diff --git a/userland/libc/string/strncasecmp.c b/userland/libc/string/strncasecmp.c new file mode 100644 index 0000000..9ce8c04 --- /dev/null +++ b/userland/libc/string/strncasecmp.c @@ -0,0 +1,29 @@ +#include +#include + +int strncasecmp(const char *s1, const char *s2, size_t n) { + // The strcmp() function shall compare the string pointed to by s1 + // to the string pointed to by s2. + int l1, l2, rc; + l1 = l2 = rc = 0; + for (; (*s1 || *s2) && n > 0; n--) { + if (tolower(*s1) != tolower(*s2)) + rc++; + if (*s1) { + l1++; + s1++; + } + if (*s2) { + l2++; + s2++; + } + } + + // Upon completion, strcmp() shall return an integer greater than, + // equal to, or less than 0, if the string pointed to by s1 is + // greater than, equal to, or less than the string pointed to by + // s2, respectively. + if (l2 > l1) + return -rc; + return rc; +} -- cgit v1.2.3