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small rewrite of PR #505

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Daan 2021-12-19 10:35:12 -08:00
parent babe57aa99
commit 4808ef762b
1 changed files with 11 additions and 13 deletions
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24
src/options.c
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@ -415,26 +415,24 @@ void _mi_error_message(int err, const char* fmt, ...) {
// --------------------------------------------------------
static void mi_strlcpy(char* dest, const char* src, size_t dest_size) {
if (dest_size == 0)
return;
// Copy until end of 'src' or dest is (almost) full
while (*src && (dest_size > 1)) {
if (dest==NULL || src==NULL || dest_size == 0) return;
// copy until end of src, or when dest is (almost) full
while (*src != 0 && dest_size > 1) {
*dest++ = *src++;
--dest_size;
dest_size--;
}
// Null-terminate dest
// always zero terminate
*dest = 0;
}
static void mi_strlcat(char* dest, const char* src, size_t dest_size) {
// Skip existing data in 'dest'
while (*dest && (dest_size > 1)) {
++dest;
--dest_size;
if (dest==NULL || src==NULL || dest_size == 0) return;
// find end of string in the dest buffer
while (*dest != 0 && dest_size > 1) {
dest++;
dest_size--;
}
// Concatenate src
// and catenate
mi_strlcpy(dest, src, dest_size);
}