re3/src/skel/crossplatform.cpp

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#include "common.h"
#include "crossplatform.h"
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// Codes compatible with Windows and Linux
#ifndef _WIN32
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// For internal use
// wMilliseconds is not needed
void tmToSystemTime(const tm *tm, SYSTEMTIME *out) {
out->wYear = tm->tm_year + 1900;
out->wMonth = tm->tm_mon + 1;
out->wDayOfWeek = tm->tm_wday;
out->wDay = tm->tm_mday;
out->wHour = tm->tm_hour;
out->wMinute = tm->tm_min;
out->wSecond = tm->tm_sec;
}
void GetLocalTime_CP(SYSTEMTIME *out) {
time_t timestamp = time(nil);
tm *localTm = localtime(&timestamp);
tmToSystemTime(localTm, out);
}
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#endif
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// Compatible with Linux/POSIX and MinGW on Windows
#ifndef _WIN32
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HANDLE FindFirstFile(const char* pathname, WIN32_FIND_DATA* firstfile) {
char newpathname[32];
strncpy(newpathname, pathname, 32);
char* path = strtok(newpathname, "\\*");
strncpy(firstfile->folder, path, sizeof(firstfile->folder));
// Both w/ extension and w/o extension is ok
if (strlen(path) + 2 != strlen(pathname))
strncpy(firstfile->extension, strtok(NULL, "\\*"), sizeof(firstfile->extension));
else
strncpy(firstfile->extension, "", sizeof(firstfile->extension));
HANDLE d;
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if ((d = (HANDLE)opendir(path)) == NULL || !FindNextFile(d, firstfile))
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return NULL;
return d;
}
bool FindNextFile(HANDLE d, WIN32_FIND_DATA* finddata) {
dirent *file;
static struct stat fileStats;
static char path[PATH_MAX], relativepath[NAME_MAX + sizeof(finddata->folder) + 1];
int extensionLen = strlen(finddata->extension);
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while ((file = readdir((DIR*)d)) != NULL) {
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// We only want "DT_REG"ular Files, but reportedly some FS and OSes gives DT_UNKNOWN as type.
if ((file->d_type == DT_UNKNOWN || file->d_type == DT_REG) &&
(extensionLen == 0 || strncmp(&file->d_name[strlen(file->d_name) - extensionLen], finddata->extension, extensionLen) == 0)) {
sprintf(relativepath, "%s/%s", finddata->folder, file->d_name);
realpath(relativepath, path);
stat(path, &fileStats);
strncpy(finddata->cFileName, file->d_name, sizeof(finddata->cFileName));
finddata->ftLastWriteTime = fileStats.st_mtime;
return true;
}
}
return false;
}
void GetDateFormat(int unused1, int unused2, SYSTEMTIME* in, int unused3, char* out, int size) {
tm linuxTime;
linuxTime.tm_year = in->wYear - 1900;
linuxTime.tm_mon = in->wMonth - 1;
linuxTime.tm_wday = in->wDayOfWeek;
linuxTime.tm_mday = in->wDay;
linuxTime.tm_hour = in->wHour;
linuxTime.tm_min = in->wMinute;
linuxTime.tm_sec = in->wSecond;
strftime(out, size, nl_langinfo(D_FMT), &linuxTime);
}
void FileTimeToSystemTime(time_t* writeTime, SYSTEMTIME* out) {
tm *ptm = gmtime(writeTime);
tmToSystemTime(ptm, out);
}
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#endif
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// Funcs/features from Windows that we need on other platforms
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#ifndef _WIN32
char *strupr(char *s) {
char* tmp = s;
for (;*tmp;++tmp) {
*tmp = toupper((unsigned char) *tmp);
}
return s;
}
char *strlwr(char *s) {
char* tmp = s;
for (;*tmp;++tmp) {
*tmp = tolower((unsigned char) *tmp);
}
return s;
}
char *trim(char *s) {
char *ptr;
if (!s)
return NULL; // handle NULL string
if (!*s)
return s; // handle empty string
for (ptr = s + strlen(s) - 1; (ptr >= s) && isspace(*ptr); --ptr);
ptr[1] = '\0';
return s;
}
// Case-insensitivity on linux (from https://github.com/OneSadCookie/fcaseopen)
// r must have strlen(path) + 2 bytes
int casepath(char const *path, char *r)
{
size_t l = strlen(path);
char *p = (char*)alloca(l + 1);
strcpy(p, path);
// my addon: change \'s with /
char *nextBs;
while(nextBs = strstr(p, "\\")){
*nextBs = '/';
}
// my addon: linux doesn't handle filenames with spaces at the end nicely
p = trim(p);
size_t rl = 0;
DIR *d;
if (p[0] == '/')
{
d = opendir("/");
p = p + 1;
}
else
{
d = opendir(".");
r[0] = '.';
r[1] = 0;
rl = 1;
}
int last = 0;
char *c = strsep(&p, "/");
while (c)
{
if (!d)
{
return 0;
}
if (last)
{
closedir(d);
return 0;
}
r[rl] = '/';
rl += 1;
r[rl] = 0;
struct dirent *e = readdir(d);
while (e)
{
if (strcasecmp(c, e->d_name) == 0)
{
strcpy(r + rl, e->d_name);
rl += strlen(e->d_name);
closedir(d);
d = opendir(r);
break;
}
e = readdir(d);
}
if (!e)
{
strcpy(r + rl, c);
rl += strlen(c);
last = 1;
}
c = strsep(&p, "/");
}
if (d) closedir(d);
return 1;
}
#endif