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Commits › 3d8bb23
Add sha256_fileat function
Baptiste Daroussin committed 11 years ago
commit 3d8bb23ed5306add5ea036e404513f0cc225b63e
parent e0f5caf
2 files changed +20 -1
modified libpkg/private/utils.h
@@ -96,6 +96,7 @@ int is_conf_file(const char *path, char *newpath, size_t len);
void sha256_buf(const char *, size_t len, char[SHA256_DIGEST_LENGTH * 2 +1]);

void sha256_buf_bin(const char *, size_t len, char[SHA256_DIGEST_LENGTH]);

int sha256_file(const char *, char[SHA256_DIGEST_LENGTH * 2 +1]);
+ 
int sha256_fileat(int fd, const char *, char[SHA256_DIGEST_LENGTH * 2 +1]);

int sha256_fd(int fd, char[SHA256_DIGEST_LENGTH * 2 +1]);

int md5_file(const char *, char[MD5_DIGEST_LENGTH * 2 +1]);
modified libpkg/utils.c
@@ -356,13 +356,31 @@ sha256_hash(unsigned char hash[SHA256_DIGEST_LENGTH],
}



int
+ 
sha256_fileat(int rootfd, const char *path,
+ 
    char out[SHA256_DIGEST_LENGTH * 2 + 1])
+ 
{
+ 
	int fd, ret;
+
+ 
	if ((fd = openat(rootfd, path, O_RDONLY)) == -1) {
+ 
		pkg_emit_errno("openat", path);
+ 
		return (EPKG_FATAL);
+ 
	}
+
+ 
	ret = sha256_fd(fd, out);
+
+ 
	close(fd);
+
+ 
	return (ret);
+ 
}
+
+ 
int

sha256_file(const char *path, char out[SHA256_DIGEST_LENGTH * 2 + 1])

{

	int fd;

	int ret;



	if ((fd = open(path, O_RDONLY)) == -1) {
- 
		pkg_emit_errno("fopen", path);
+ 
		pkg_emit_errno("open", path);

		return (EPKG_FATAL);

	}