mirror of
https://github.com/ZDoom/acc.git
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408 lines
8.6 KiB
C
408 lines
8.6 KiB
C
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//**************************************************************************
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//**
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//** misc.c
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//**
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//**************************************************************************
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// HEADER FILES ------------------------------------------------------------
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#ifdef __NeXT__
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#include <libc.h>
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#else
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#include <fcntl.h>
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#include <stdlib.h>
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#if !defined(unix) && !defined(__APPLE__)
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#include <io.h>
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#endif
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#endif
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#ifdef __GNUC__
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#include <sys/stat.h>
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#include <unistd.h>
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#endif
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#ifdef _WIN32
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#include <sys/stat.h>
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#include <sys/types.h>
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#endif
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#include <stdio.h>
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#include <stddef.h>
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#include <stdarg.h>
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#include <string.h>
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#include <ctype.h>
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#include "common.h"
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#include "misc.h"
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#include "error.h"
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// MACROS ------------------------------------------------------------------
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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// TYPES -------------------------------------------------------------------
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// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
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// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
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// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
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// EXTERNAL DATA DECLARATIONS ----------------------------------------------
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extern boolean acs_BigEndianHost;
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extern boolean acs_VerboseMode;
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extern boolean acs_DebugMode;
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extern FILE *acs_DebugFile;
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// PUBLIC DATA DEFINITIONS -------------------------------------------------
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// PRIVATE DATA DEFINITIONS ------------------------------------------------
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// CODE --------------------------------------------------------------------
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//==========================================================================
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//
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// MS_Alloc
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//
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//==========================================================================
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void *MS_Alloc(size_t size, error_t error)
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{
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void *mem;
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if((mem = malloc(size)) == NULL)
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{
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ERR_Exit(error, NO);
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}
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return mem;
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}
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//==========================================================================
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//
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// MS_Realloc
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//
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//==========================================================================
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void *MS_Realloc(void *base, size_t size, error_t error)
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{
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void *mem;
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if((mem = realloc(base, size)) == NULL)
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{
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ERR_Exit(error, NO);
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}
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return mem;
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}
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//==========================================================================
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//
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// MS_LittleUWORD
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//
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// Converts a host U_WORD (2 bytes) to little endian byte order.
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//
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//==========================================================================
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U_WORD MS_LittleUWORD(U_WORD val)
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{
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if(acs_BigEndianHost == NO)
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{
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return val;
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}
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return ((val&255)<<8)+((val>>8)&255);
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}
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//==========================================================================
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//
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// MS_LittleUINT
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//
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// Converts a host U_INT (4 bytes) to little endian byte order.
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//
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//==========================================================================
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U_INT MS_LittleUINT(U_INT val)
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{
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if(acs_BigEndianHost == NO)
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{
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return val;
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}
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return ((val&255)<<24)+(((val>>8)&255)<<16)+(((val>>16)&255)<<8)
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+((val>>24)&255);
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}
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//==========================================================================
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//
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// MS_LoadFile
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//
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//==========================================================================
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int MS_LoadFile(char *name, char **buffer)
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{
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int handle;
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int size;
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int count;
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char *addr;
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struct stat fileInfo;
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if(strlen(name) >= MAX_FILE_NAME_LENGTH)
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{
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ERR_Exit(ERR_FILE_NAME_TOO_LONG, NO, name);
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}
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if((handle = open(name, O_RDONLY|O_BINARY, 0666)) == -1)
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{
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ERR_Exit(ERR_CANT_OPEN_FILE, NO, name);
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}
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if(fstat(handle, &fileInfo) == -1)
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{
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ERR_Exit(ERR_CANT_READ_FILE, NO, name);
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}
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size = fileInfo.st_size;
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if((addr = malloc(size)) == NULL)
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{
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ERR_Exit(ERR_NONE, NO, "Couldn't malloc %d bytes for "
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"file \"%s\".", size, name);
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}
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count = read(handle, addr, size);
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close(handle);
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if(count < size)
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{
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ERR_Exit(ERR_CANT_READ_FILE, NO, name);
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}
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*buffer = addr;
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return size;
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}
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//==========================================================================
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//
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// MS_FileExists
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//
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// Pascal 21/11/08
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//
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//==========================================================================
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boolean MS_FileExists(char *name)
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{
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struct stat info;
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int ret = stat(name, &info);
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return (ret == 0);
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}
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//==========================================================================
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//
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// MS_SaveFile
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//
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//==========================================================================
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boolean MS_SaveFile(char *name, void *buffer, int length)
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{
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int handle;
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int count;
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handle = open(name, O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0666);
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if(handle == -1)
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{
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return FALSE;
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}
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count = write(handle, buffer, length);
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close(handle);
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if(count < length)
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{
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return FALSE;
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}
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return TRUE;
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}
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//==========================================================================
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//
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// MS_StrCmp
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//
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//==========================================================================
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int MS_StrCmp(char *s1, char *s2)
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{
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for(; tolower(*s1) == tolower(*s2); s1++, s2++)
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{
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if(*s1 == '\0')
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{
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return 0;
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}
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}
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return tolower(*s1)-tolower(*s2);
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}
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//==========================================================================
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//
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// MS_StrLwr
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//
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//==========================================================================
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char *MS_StrLwr(char *string)
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{
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char *c;
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c = string;
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while(*c)
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{
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*c = tolower(*c);
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c++;
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}
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return string;
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}
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//==========================================================================
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//
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// MS_StrUpr
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//
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//==========================================================================
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char *MS_StrUpr(char *string)
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{
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char *c;
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c = string;
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while(*c)
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{
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*c = toupper(*c);
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c++;
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}
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return string;
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}
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//==========================================================================
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//
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// MS_SuggestFileExt
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//
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//==========================================================================
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void MS_SuggestFileExt(char *base, char *extension)
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{
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char *search;
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search = base+strlen(base)-1;
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while(!MS_IsDirectoryDelimiter(*search) && search != base)
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{
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if(*search-- == '.')
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{
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return;
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}
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}
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strcat(base, extension);
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}
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//==========================================================================
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//
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// MS_IsDirectoryDelimiter
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//
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//==========================================================================
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boolean MS_IsDirectoryDelimiter(char foo)
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{
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#if defined(_WIN32) || defined(__MSDOS__)
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return foo == '/' || foo == '\\' || foo == ':';
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#else
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return foo == '/';
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#endif
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}
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//==========================================================================
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//
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// MS_StripFileExt
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//
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//==========================================================================
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void MS_StripFileExt(char *name)
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{
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char *search;
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search = name+strlen(name)-1;
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while(!MS_IsDirectoryDelimiter(*search) && search != name)
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{
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if(*search == '.')
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{
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*search = '\0';
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return;
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}
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search--;
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}
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}
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//==========================================================================
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//
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// MS_StripFilename
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//
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// [RH] This now leaves the directory delimiter in place.
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//
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//==========================================================================
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boolean MS_StripFilename(char *name)
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{
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char *c;
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c = name+strlen(name);
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do
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{
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if(--c == name)
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{ // No directory delimiter
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return NO;
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}
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} while(!MS_IsDirectoryDelimiter(*c));
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*(c+1) = 0;
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return YES;
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}
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//==========================================================================
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//
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// MS_Message
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//
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//==========================================================================
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void MS_Message(msg_t type, char *text, ...)
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{
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FILE *fp;
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va_list argPtr;
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if(type == MSG_VERBOSE && acs_VerboseMode == NO)
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{
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return;
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}
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fp = stdout;
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if(type == MSG_DEBUG)
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{
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if(acs_DebugMode == NO)
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{
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return;
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}
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if(acs_DebugFile != NULL)
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{
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fp = acs_DebugFile;
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}
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}
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if(text)
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{
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va_start(argPtr, text);
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vfprintf(fp, text, argPtr);
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va_end(argPtr);
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}
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}
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//==========================================================================
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//
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// MS_IsPathAbsolute
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//
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// Pascal 30/11/08
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//
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//==========================================================================
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boolean MS_IsPathAbsolute(char *name)
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{
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#if defined(_WIN32) || defined(__MSDOS__)
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// In Windows, the second character must be : if it is an
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// absolute path (the first character indicates the drive)
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// or the first character is either / or \ for absolute path
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if((name[0] != '\0') && (name[1] == ':'))
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return TRUE;
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#endif
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// In Unix-land, the first character must be / for a root path
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return MS_IsDirectoryDelimiter(name[0]);
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}
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