colla/deprecated/os.c

107 lines
2.5 KiB
C

#include "os.h"
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#ifdef _WIN32
#define _BUFSZ 128
#include <lmcons.h>
// modified from netbsd source http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/pkgtools/libnbcompat/files/getdelim.c?only_with_tag=MAIN
isize getdelim(char **buf, size_t *bufsz, int delimiter, FILE *fp) {
char *ptr, *eptr;
if(*buf == NULL || *bufsz == 0) {
*bufsz = _BUFSZ;
if((*buf = malloc(*bufsz)) == NULL) {
return -1;
}
}
isize result = -1;
// usually fgetc locks every read, using windows-specific
// _lock_file and _unlock_file will be faster
_lock_file(fp);
for(ptr = *buf, eptr = *buf + *bufsz;;) {
int c = _getc_nolock(fp);
if(c == -1) {
if(feof(fp)) {
isize diff = (isize)(ptr - *buf);
if(diff != 0) {
*ptr = '\0';
result = diff;
break;
}
}
break;
}
*ptr++ = (char)c;
if(c == delimiter) {
*ptr = '\0';
result = ptr - *buf;
break;
}
if((ptr + 2) >= eptr) {
char *nbuf;
size_t nbufsz = *bufsz * 2;
isize d = ptr - *buf;
if((nbuf = realloc(*buf, nbufsz)) == NULL) {
break;
}
*buf = nbuf;
*bufsz = nbufsz;
eptr = nbuf + nbufsz;
ptr = nbuf + d;
}
}
_unlock_file(fp);
return result;
}
// taken from netbsd source http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/pkgtools/libnbcompat/files/getline.c?only_with_tag=MAIN
isize getline(char **line_ptr, size_t *n, FILE *stream) {
return getdelim(line_ptr, n, '\n', stream);
}
str_t getUserName() {
char buf[UNLEN + 1];
DWORD sz = sizeof(buf);
BOOL res = GetUserNameA(buf, &sz);
if(!res) {
return strInit();
}
return strFromBuf(buf, sz);
}
#else
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
int stricmp(const char *a, const char *b) {
int result;
if (a == b) {
return 0;
}
while ((result = tolower(*a) - tolower(*b++)) == 0) {
if (*a++ == '\0') {
break;
}
}
return result;
}
str_t getUserName() {
return strFromStr(getlogin());
}
#endif