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Diffstat (limited to 'src/mytypes.h')
| -rw-r--r-- | src/mytypes.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/mytypes.h b/src/mytypes.h new file mode 100644 index 0000000..ef45595 --- /dev/null +++ b/src/mytypes.h @@ -0,0 +1,120 @@ +/************************************************* +* Exim - an Internet mail transport agent * +*************************************************/ + +/* Copyright (c) University of Cambridge 1995 - 2018 */ +/* See the file NOTICE for conditions of use and distribution. */ + + +/* This header file contains type definitions and macros that I use as +"standard" in the code of Exim and its utilities. Make it idempotent because +local_scan.h includes it and exim.h includes them both (to get this earlier). */ + +#ifndef MYTYPES_H +#define MYTYPES_H + +#ifndef FALSE +# define FALSE 0 +#endif + +#ifndef TRUE +# define TRUE 1 +#endif + +#ifndef TRUE_UNSET +# define TRUE_UNSET 2 +#endif + + +/* If gcc is being used to compile Exim, we can use its facility for checking +the arguments of printf-like functions. This is done by a macro. */ + +#if defined(__GNUC__) || defined(__clang__) +# define PRINTF_FUNCTION(A,B) __attribute__((format(printf,A,B))) +# define ARG_UNUSED __attribute__((__unused__)) +# define WARN_UNUSED_RESULT __attribute__((__warn_unused_result__)) +#else +# define PRINTF_FUNCTION(A,B) +# define ARG_UNUSED /**/ +# define WARN_UNUSED_RESULT /**/ +#endif + +#ifdef WANT_DEEPER_PRINTF_CHECKS +# define ALMOST_PRINTF(A, B) PRINTF_FUNCTION(A, B) +#else +# define ALMOST_PRINTF(A, B) +#endif + + +/* Some operating systems (naughtily, imo) include a definition for "uchar" in +the standard header files, so we use "uschar". Solaris has u_char in +sys/types.h. This is just a typing convenience, of course. */ + +typedef unsigned char uschar; +typedef unsigned BOOL; +/* We also have SIGNAL_BOOL, which requires signal.h be included, so is defined +elsewhere */ + + +/* These macros save typing for the casting that is needed to cope with the +mess that is "char" in ISO/ANSI C. Having now been bitten enough times by +systems where "char" is actually signed, I've converted Exim to use entirely +unsigned chars, except in a few special places such as arguments that are +almost always literal strings. */ + +#define CS (char *) +#define CCS (const char *) +#define CSS (char **) +#define US (unsigned char *) +#define CUS (const unsigned char *) +#define USS (unsigned char **) +#define CUSS (const unsigned char **) + +/* The C library string functions expect "char *" arguments. Use macros to +avoid having to write a cast each time. We do this for string and file +functions that are called quite often; for other calls to external libraries +(which are on the whole special-purpose) we just use individual casts. */ + +#define Uatoi(s) atoi(CCS(s)) +#define Uatol(s) atol(CCS(s)) +#define Uchdir(s) chdir(CCS(s)) +#define Uchmod(s,n) chmod(CCS(s),n) +#define Uchown(s,n,m) chown(CCS(s),n,m) +#define Ufgets(b,n,f) fgets(CS(b),n,f) +#define Ufopen(s,t) fopen(CCS(s),CCS(t)) +#define Ulink(s,t) link(CCS(s),CCS(t)) +#define Ulstat(s,t) lstat(CCS(s),t) + +#ifdef O_BINARY /* This is for Cygwin, */ +#define Uopen(s,n,m) open(CCS(s),(n)|O_BINARY,m) /* where all files must */ +#else /* be opened as binary */ +#define Uopen(s,n,m) open(CCS(s),n,m) /* to avoid problems */ +#endif /* with CRLF endings. */ +#define Uread(f,b,l) read(f,CS(b),l) +#define Urename(s,t) rename(CCS(s),CCS(t)) +#define Ustat(s,t) stat(CCS(s),t) +#define Ustrcat(s,t) strcat(CS(s),CCS(t)) +#define Ustrchr(s,n) US strchr(CCS(s),n) +#define CUstrchr(s,n) CUS strchr(CCS(s),n) +#define CUstrerror(n) CUS strerror(n) +#define Ustrcmp(s,t) strcmp(CCS(s),CCS(t)) +#define Ustrcpy(s,t) strcpy(CS(s),CCS(t)) +#define Ustrcspn(s,t) strcspn(CCS(s),CCS(t)) +#define Ustrftime(s,m,f,t) strftime(CS(s),m,f,t) +#define Ustrlen(s) (int)strlen(CCS(s)) +#define Ustrncat(s,t,n) strncat(CS(s),CCS(t),n) +#define Ustrncmp(s,t,n) strncmp(CCS(s),CCS(t),n) +#define Ustrncpy(s,t,n) strncpy(CS(s),CCS(t),n) +#define Ustrpbrk(s,t) strpbrk(CCS(s),CCS(t)) +#define Ustrrchr(s,n) US strrchr(CCS(s),n) +#define CUstrrchr(s,n) CUS strrchr(CCS(s),n) +#define Ustrspn(s,t) strspn(CCS(s),CCS(t)) +#define Ustrstr(s,t) US strstr(CCS(s),CCS(t)) +#define CUstrstr(s,t) CUS strstr(CCS(s),CCS(t)) +#define Ustrtod(s,t) strtod(CCS(s),CSS(t)) +#define Ustrtol(s,t,b) strtol(CCS(s),CSS(t),b) +#define Ustrtoul(s,t,b) strtoul(CCS(s),CSS(t),b) +#define Uunlink(s) unlink(CCS(s)) +#endif + +/* End of mytypes.h */ |