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-rw-r--r--payloads/libpayload/libc/string.c42
1 files changed, 24 insertions, 18 deletions
diff --git a/payloads/libpayload/libc/string.c b/payloads/libpayload/libc/string.c
index 7bf19ace37..ce5767e4b0 100644
--- a/payloads/libpayload/libc/string.c
+++ b/payloads/libpayload/libc/string.c
@@ -89,14 +89,15 @@ size_t strlen(const char *str)
*/
int strcasecmp(const char *s1, const char *s2)
{
- int i;
+ int i, res;
- for (i = 0; s1[i] != '\0'; i++) {
- if (tolower(s1[i]) != tolower(s2[i]))
- return s1[i] - s2[i];
+ for (i = 0; 1; i++) {
+ res = tolower(s1[i]) - tolower(s2[i]);
+ if (res || (s1[i] == '\0'))
+ break;
}
- return 0;
+ return res;
}
/**
@@ -109,14 +110,16 @@ int strcasecmp(const char *s1, const char *s2)
*/
int strncasecmp(const char *s1, const char *s2, size_t maxlen)
{
- int i;
+ int i, res;
+ res = 0;
for (i = 0; i < maxlen; i++) {
- if (tolower(s1[i]) != tolower(s2[i]))
- return s1[i] - s2[i];
+ res = tolower(s1[i]) - tolower(s2[i]);
+ if (res || (s1[i] == '\0'))
+ break;
}
- return s1[i] - s2[i];
+ return res;
}
/**
@@ -130,14 +133,15 @@ int strncasecmp(const char *s1, const char *s2, size_t maxlen)
*/
int strcmp(const char *s1, const char *s2)
{
- int i;
+ int i, res;
- for (i = 0; s1[i] != '\0'; i++) {
- if (s1[i] != s2[i])
- return s1[i] - s2[i];
+ for (i = 0; 1; i++) {
+ res = s1[i] - s2[i];
+ if (res || (s1[i] == '\0'))
+ break;
}
- return s1[i] - s2[i];
+ return res;
}
/**
@@ -150,14 +154,16 @@ int strcmp(const char *s1, const char *s2)
*/
int strncmp(const char *s1, const char *s2, size_t maxlen)
{
- int i;
+ int i, res;
+ res = 0;
for (i = 0; i < maxlen; i++) {
- if (s1[i] != s2[i])
- return s1[i] - s2[i];
+ res = s1[i] - s2[i];
+ if (res || (s1[i] == '\0'))
+ break;
}
- return 0;
+ return res;
}
/**