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LibC: A whole bunch of compat work towards porting Lynx.

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This commit is contained in:
Andreas Kling 2019-03-14 15:18:15 +01:00
parent 48590a0e51
commit 2c3cf22bc9
10 changed files with 125 additions and 5 deletions
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35
LibC/stdlib.cpp
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@ -161,6 +161,8 @@ void* calloc(size_t count, size_t size)
void* realloc(void *ptr, size_t size)
{
if (!ptr)
return malloc(size);
validate_mallocation(ptr, "realloc()");
auto* header = (MallocHeader*)((((byte*)ptr) - sizeof(MallocHeader)));
size_t old_size = header->size;
@ -288,6 +290,12 @@ long atol(const char* str)
return atoi(str);
}
long long atoll(const char* str)
{
dbgprintf("FIXME(Libc): atoll('%s') passing through to atol()\n", str);
return atol(str);
}
static char ptsname_buf[32];
char* ptsname(int fd)
{
@ -335,9 +343,32 @@ int system(const char* command)
return execl("/bin/sh", "sh", "-c", command, nullptr);
}
char* mktemp(char*)
char* mktemp(char* pattern)
{
ASSERT_NOT_REACHED();
int length = strlen(pattern);
// FIXME: Check for an invalid template pattern and return EINVAL.
if (length < 6) {
pattern[0] = '\0';
errno = EINVAL;
return pattern;
}
int start = length - 6;
static constexpr char random_characters[] = "abcdefghijklmnopqrstuvwxyz0123456789";
for (int attempt = 0; attempt < 100; ++attempt) {
for (int i = 0; i < 6; ++i)
pattern[start + i] = random_characters[(rand() % sizeof(random_characters))];
struct stat st;
int rc = lstat(pattern, &st);
if (rc < 0 && errno == ENOENT)
return pattern;
}
pattern[0] = '\0';
errno = EEXIST;
return pattern;
}
void* bsearch(const void* key, const void* base, size_t nmemb, size_t size, int (*compar)(const void *, const void *))