Adding upstream version 1:2.43.0.upstream/1%2.43.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 143 insertions, 0 deletions

diff --git a/wrapper.h b/wrapper.h
new file mode 100644
index 0000000..1b2b047
--- /dev/null
+++ b/wrapper.h
@@ -0,0 +1,143 @@
+#ifndef WRAPPER_H
+#define WRAPPER_H
+
+char *xstrdup(const char *str);
+void *xmalloc(size_t size);
+void *xmallocz(size_t size);
+void *xmallocz_gently(size_t size);
+void *xmemdupz(const void *data, size_t len);
+char *xstrndup(const char *str, size_t len);
+void *xrealloc(void *ptr, size_t size);
+void *xcalloc(size_t nmemb, size_t size);
+void xsetenv(const char *name, const char *value, int overwrite);
+void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
+const char *mmap_os_err(void);
+void *xmmap_gently(void *start, size_t length, int prot, int flags, int fd, off_t offset);
+int xopen(const char *path, int flags, ...);
+ssize_t xread(int fd, void *buf, size_t len);
+ssize_t xwrite(int fd, const void *buf, size_t len);
+ssize_t xpread(int fd, void *buf, size_t len, off_t offset);
+int xdup(int fd);
+FILE *xfopen(const char *path, const char *mode);
+FILE *xfdopen(int fd, const char *mode);
+int xmkstemp(char *temp_filename);
+int xmkstemp_mode(char *temp_filename, int mode);
+char *xgetcwd(void);
+FILE *fopen_for_writing(const char *path);
+FILE *fopen_or_warn(const char *path, const char *mode);
+
+/*
+ * Like strncmp, but only return zero if s is NUL-terminated and exactly len
+ * characters long.  If it is not, consider it greater than t.
+ */
+int xstrncmpz(const char *s, const char *t, size_t len);
+
+__attribute__((format (printf, 3, 4)))
+int xsnprintf(char *dst, size_t max, const char *fmt, ...);
+
+int xgethostname(char *buf, size_t len);
+
+/* set default permissions by passing mode arguments to open(2) */
+int git_mkstemps_mode(char *pattern, int suffix_len, int mode);
+int git_mkstemp_mode(char *pattern, int mode);
+
+ssize_t read_in_full(int fd, void *buf, size_t count);
+ssize_t write_in_full(int fd, const void *buf, size_t count);
+ssize_t pread_in_full(int fd, void *buf, size_t count, off_t offset);
+
+static inline ssize_t write_str_in_full(int fd, const char *str)
+{
+	return write_in_full(fd, str, strlen(str));
+}
+
+/**
+ * Open (and truncate) the file at path, write the contents of buf to it,
+ * and close it. Dies if any errors are encountered.
+ */
+void write_file_buf(const char *path, const char *buf, size_t len);
+
+/**
+ * Like write_file_buf(), but format the contents into a buffer first.
+ * Additionally, write_file() will append a newline if one is not already
+ * present, making it convenient to write text files:
+ *
+ *   write_file(path, "counter: %d", ctr);
+ */
+__attribute__((format (printf, 2, 3)))
+void write_file(const char *path, const char *fmt, ...);
+
+/* Return 1 if the file is empty or does not exists, 0 otherwise. */
+int is_empty_or_missing_file(const char *filename);
+
+enum fsync_action {
+	FSYNC_WRITEOUT_ONLY,
+	FSYNC_HARDWARE_FLUSH
+};
+
+/*
+ * Issues an fsync against the specified file according to the specified mode.
+ *
+ * FSYNC_WRITEOUT_ONLY attempts to use interfaces available on some operating
+ * systems to flush the OS cache without issuing a flush command to the storage
+ * controller. If those interfaces are unavailable, the function fails with
+ * ENOSYS.
+ *
+ * FSYNC_HARDWARE_FLUSH does an OS writeout and hardware flush to ensure that
+ * changes are durable. It is not expected to fail.
+ */
+int git_fsync(int fd, enum fsync_action action);
+
+/*
+ * Preserves errno, prints a message, but gives no warning for ENOENT.
+ * Returns 0 on success, which includes trying to unlink an object that does
+ * not exist.
+ */
+int unlink_or_warn(const char *path);
+ /*
+  * Tries to unlink file.  Returns 0 if unlink succeeded
+  * or the file already didn't exist.  Returns -1 and
+  * appends a message to err suitable for
+  * 'error("%s", err->buf)' on error.
+  */
+int unlink_or_msg(const char *file, struct strbuf *err);
+/*
+ * Preserves errno, prints a message, but gives no warning for ENOENT.
+ * Returns 0 on success, which includes trying to remove a directory that does
+ * not exist.
+ */
+int rmdir_or_warn(const char *path);
+
+/*
+ * Call access(2), but warn for any error except "missing file"
+ * (ENOENT or ENOTDIR).
+ */
+#define ACCESS_EACCES_OK (1U << 0)
+int access_or_warn(const char *path, int mode, unsigned flag);
+int access_or_die(const char *path, int mode, unsigned flag);
+
+/* Warn on an inaccessible file if errno indicates this is an error */
+int warn_on_fopen_errors(const char *path);
+
+/*
+ * Open with O_NOFOLLOW, or equivalent. Note that the fallback equivalent
+ * may be racy. Do not use this as protection against an attacker who can
+ * simultaneously create paths.
+ */
+int open_nofollow(const char *path, int flags);
+
+void sleep_millisec(int millisec);
+
+/*
+ * Generate len bytes from the system cryptographically secure PRNG.
+ * Returns 0 on success and -1 on error, setting errno.  The inability to
+ * satisfy the full request is an error.
+ */
+int csprng_bytes(void *buf, size_t len);
+
+/*
+ * Returns a random uint32_t, uniformly distributed across all possible
+ * values.
+ */
+uint32_t git_rand(void);
+
+#endif /* WRAPPER_H */