diff options
Diffstat (limited to 'portable/system.h')
| -rw-r--r-- | portable/system.h | 75 |
1 files changed, 47 insertions, 28 deletions
diff --git a/portable/system.h b/portable/system.h index 461601b..d1ccc94 100644 --- a/portable/system.h +++ b/portable/system.h @@ -13,13 +13,24 @@ * #include <stddef.h> * #include <stdint.h> * #include <string.h> + * #include <strings.h> * #include <unistd.h> * * Missing functions are provided via #define or prototyped if available from * the portable helper library. Also provides some standard #defines. * + * The canonical version of this file is maintained in the rra-c-util package, + * which can be found at <http://www.eyrie.org/~eagle/software/rra-c-util/>. + * * Written by Russ Allbery <rra@stanford.edu> - * This work is hereby placed in the public domain by its author. + * + * The authors hereby relinquish any claim to any copyright that they may have + * in this work, whether granted under contract or by operation of law or + * international treaty, and hereby commit to the public, at large, that they + * shall not, at any time in the future, seek to enforce any copyright in this + * work against any person or entity, or prevent any person or entity from + * copying, publishing, distributing or creating derivative works of this + * work. */ #ifndef PORTABLE_SYSTEM_H @@ -38,6 +49,9 @@ #include <stdlib.h> #include <sys/types.h> #include <string.h> +#if HAVE_STRINGS_H +# include <strings.h> +#endif #if HAVE_INTTYPES_H # include <inttypes.h> #endif @@ -56,6 +70,38 @@ /* Get the bool type. */ #include <portable/stdbool.h> +/* Windows provides snprintf under a different name. */ +#ifdef _WIN32 +# define snprintf _snprintf +#endif + +/* Windows does not define ssize_t. */ +#ifndef HAVE_SSIZE_T +typedef ptrdiff_t ssize_t; +#endif + +/* + * POSIX requires that these be defined in <unistd.h>. If one of them has + * been defined, all the rest almost certainly have. + */ +#ifndef STDIN_FILENO +# define STDIN_FILENO 0 +# define STDOUT_FILENO 1 +# define STDERR_FILENO 2 +#endif + +/* + * C99 requires va_copy. Older versions of GCC provide __va_copy. Per the + * Autoconf manual, memcpy is a generally portable fallback. + */ +#ifndef va_copy +# ifdef __va_copy +# define va_copy(d, s) __va_copy((d), (s)) +# else +# define va_copy(d, s) memcpy(&(d), &(s), sizeof(va_list)) +# endif +#endif + BEGIN_DECLS /* Default to a hidden visibility for all portability functions. */ @@ -96,31 +142,4 @@ extern size_t strlcpy(char *, const char *, size_t); END_DECLS -/* Windows provides snprintf under a different name. */ -#ifdef _WIN32 -# define snprintf _snprintf -#endif - -/* - * POSIX requires that these be defined in <unistd.h>. If one of them has - * been defined, all the rest almost certainly have. - */ -#ifndef STDIN_FILENO -# define STDIN_FILENO 0 -# define STDOUT_FILENO 1 -# define STDERR_FILENO 2 -#endif - -/* - * C99 requires va_copy. Older versions of GCC provide __va_copy. Per the - * Autoconf manual, memcpy is a generally portable fallback. - */ -#ifndef va_copy -# ifdef __va_copy -# define va_copy(d, s) __va_copy((d), (s)) -# else -# define va_copy(d, s) memcpy(&(d), &(s), sizeof(va_list)) -# endif -#endif - #endif /* !PORTABLE_SYSTEM_H */ |