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diff --git a/git-compat-util.h b/git-compat-util.h
index 1bfbdeb94f55d57b429b91aa8762618153c34f7f..c04e8baa87f263b426de17556f63351ae254ae95 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
#define _FILE_OFFSET_BITS 64
#ifndef FLEX_ARRAY
-#if defined(__GNUC__) && (__GNUC__ < 3)
-#define FLEX_ARRAY 0
-#else
-#define FLEX_ARRAY /* empty */
+/*
+ * See if our compiler is known to support flexible array members.
+ */
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
+# define FLEX_ARRAY /* empty */
+#elif defined(__GNUC__)
+# if (__GNUC__ >= 3)
+# define FLEX_ARRAY /* empty */
+# else
+# define FLEX_ARRAY 0 /* older GNU extension */
+# endif
+#endif
+
+/*
+ * Otherwise, default to safer but a bit wasteful traditional style
+ */
+#ifndef FLEX_ARRAY
+# define FLEX_ARRAY 1
#endif
#endif
#endif
#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits))))
+#define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */
/* Approximation of the length of the decimal representation of this type. */
#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
-#if !defined(__APPLE__) && !defined(__FreeBSD__)
+#if !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && !defined(_M_UNIX)
#define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
#define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
#endif
#include <fnmatch.h>
#include <sys/poll.h>
#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <utime.h>
+#ifndef NO_SYS_SELECT_H
+#include <sys/select.h>
+#endif
#include <assert.h>
#include <regex.h>
#include <netinet/in.h>
@@ -105,6 +125,8 @@ extern void set_die_routine(void (*routine)(const char *err, va_list params) NOR
extern void set_error_routine(void (*routine)(const char *err, va_list params));
extern void set_warn_routine(void (*routine)(const char *warn, va_list params));
+extern int prefixcmp(const char *str, const char *prefix);
+
#ifdef NO_MMAP
#ifndef PROT_READ
extern int gitsetenv(const char *, const char *, int);
#endif
+#ifdef NO_MKDTEMP
+#define mkdtemp gitmkdtemp
+extern char *gitmkdtemp(char *);
+#endif
+
#ifdef NO_UNSETENV
#define unsetenv gitunsetenv
extern void gitunsetenv(const char *);
const void *needle, size_t needlelen);
#endif
+#ifdef FREAD_READS_DIRECTORIES
+#ifdef fopen
+#undef fopen
+#endif
+#define fopen(a,b) git_fopen(a,b)
+extern FILE *git_fopen(const char*, const char*);
+#endif
+
+#ifdef SNPRINTF_RETURNS_BOGUS
+#define snprintf git_snprintf
+extern int git_snprintf(char *str, size_t maxsize,
+ const char *format, ...);
+#define vsnprintf git_vsnprintf
+extern int git_vsnprintf(char *str, size_t maxsize,
+ const char *format, va_list ap);
+#endif
+
+#ifdef __GLIBC_PREREQ
+#if __GLIBC_PREREQ(2, 1)
+#define HAVE_STRCHRNUL
+#endif
+#endif
+
+#ifndef HAVE_STRCHRNUL
+#define strchrnul gitstrchrnul
+static inline char *gitstrchrnul(const char *s, int c)
+{
+ while (*s && *s != c)
+ s++;
+ return (char *)s;
+}
+#endif
+
extern void release_pack_memory(size_t, int);
static inline char* xstrdup(const char *str)
return ret;
}
-static inline char *xstrndup(const char *str, size_t len)
+/*
+ * xmemdupz() allocates (len + 1) bytes of memory, duplicates "len" bytes of
+ * "data" to the allocated memory, zero terminates the allocated memory,
+ * and returns a pointer to the allocated memory. If the allocation fails,
+ * the program dies.
+ */
+static inline void *xmemdupz(const void *data, size_t len)
{
- char *p;
-
- p = memchr(str, '\0', len);
- if (p)
- len = p - str;
- p = xmalloc(len + 1);
- memcpy(p, str, len);
+ char *p = xmalloc(len + 1);
+ memcpy(p, data, len);
p[len] = '\0';
return p;
}
+static inline char *xstrndup(const char *str, size_t len)
+{
+ char *p = memchr(str, '\0', len);
+ return xmemdupz(str, p ? p - str : len);
+}
+
static inline void *xrealloc(void *ptr, size_t size)
{
void *ret = realloc(ptr, size);
return ret;
}
+/*
+ * xread() is the same a read(), but it automatically restarts read()
+ * operations with a recoverable error (EAGAIN and EINTR). xread()
+ * DOES NOT GUARANTEE that "len" bytes is read even if the data is available.
+ */
static inline ssize_t xread(int fd, void *buf, size_t len)
{
ssize_t nr;
}
}
+/*
+ * xwrite() is the same a write(), but it automatically restarts write()
+ * operations with a recoverable error (EAGAIN and EINTR). xwrite() DOES NOT
+ * GUARANTEE that "len" bytes is written even if the operation is successful.
+ */
static inline ssize_t xwrite(int fd, const void *buf, size_t len)
{
ssize_t nr;
return x;
}
-static inline int prefixcmp(const char *str, const char *prefix)
-{
- return strncmp(str, prefix, strlen(prefix));
-}
-
static inline int strtoul_ui(char const *s, int base, unsigned int *result)
{
unsigned long ul;
return 0;
}
+static inline int strtol_i(char const *s, int base, int *result)
+{
+ long ul;
+ char *p;
+
+ errno = 0;
+ ul = strtol(s, &p, base);
+ if (errno || *p || p == s || (int) ul != ul)
+ return -1;
+ *result = ul;
+ return 0;
+}
+
+#ifdef INTERNAL_QSORT
+void git_qsort(void *base, size_t nmemb, size_t size,
+ int(*compar)(const void *, const void *));
+#define qsort git_qsort
+#endif
+
+#ifndef DIR_HAS_BSD_GROUP_SEMANTICS
+# define FORCE_DIR_SET_GID S_ISGID
+#else
+# define FORCE_DIR_SET_GID 0
+#endif
+
#endif