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Diffstat (limited to 'archive-tar.c')
-rw-r--r--archive-tar.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/archive-tar.c b/archive-tar.c
index 0d1e6bd754..cb99df2814 100644
--- a/archive-tar.c
+++ b/archive-tar.c
@@ -167,21 +167,21 @@ static void prepare_header(struct archiver_args *args,
struct ustar_header *header,
unsigned int mode, unsigned long size)
{
- sprintf(header->mode, "%07o", mode & 07777);
- sprintf(header->size, "%011lo", S_ISREG(mode) ? size : 0);
- sprintf(header->mtime, "%011lo", (unsigned long) args->time);
+ xsnprintf(header->mode, sizeof(header->mode), "%07o", mode & 07777);
+ xsnprintf(header->size, sizeof(header->size), "%011lo", S_ISREG(mode) ? size : 0);
+ xsnprintf(header->mtime, sizeof(header->mtime), "%011lo", (unsigned long) args->time);
- sprintf(header->uid, "%07o", 0);
- sprintf(header->gid, "%07o", 0);
+ xsnprintf(header->uid, sizeof(header->uid), "%07o", 0);
+ xsnprintf(header->gid, sizeof(header->gid), "%07o", 0);
strlcpy(header->uname, "root", sizeof(header->uname));
strlcpy(header->gname, "root", sizeof(header->gname));
- sprintf(header->devmajor, "%07o", 0);
- sprintf(header->devminor, "%07o", 0);
+ xsnprintf(header->devmajor, sizeof(header->devmajor), "%07o", 0);
+ xsnprintf(header->devminor, sizeof(header->devminor), "%07o", 0);
memcpy(header->magic, "ustar", 6);
memcpy(header->version, "00", 2);
- sprintf(header->chksum, "%07o", ustar_header_chksum(header));
+ xsnprintf(header->chksum, sizeof(header->chksum), "%07o", ustar_header_chksum(header));
}
static int write_extended_header(struct archiver_args *args,
@@ -193,7 +193,7 @@ static int write_extended_header(struct archiver_args *args,
memset(&header, 0, sizeof(header));
*header.typeflag = TYPEFLAG_EXT_HEADER;
mode = 0100666;
- sprintf(header.name, "%s.paxheader", sha1_to_hex(sha1));
+ xsnprintf(header.name, sizeof(header.name), "%s.paxheader", sha1_to_hex(sha1));
prepare_header(args, &header, mode, size);
write_blocked(&header, sizeof(header));
write_blocked(buffer, size);
@@ -233,10 +233,10 @@ static int write_tar_entry(struct archiver_args *args,
size_t rest = pathlen - plen - 1;
if (plen > 0 && rest <= sizeof(header.name)) {
memcpy(header.prefix, path, plen);
- memcpy(header.name, path + plen + 1, rest);
+ memcpy(header.name, path + plen + 1, rest);
} else {
- sprintf(header.name, "%s.data",
- sha1_to_hex(sha1));
+ xsnprintf(header.name, sizeof(header.name), "%s.data",
+ sha1_to_hex(sha1));
strbuf_append_ext_header(&ext_header, "path",
path, pathlen);
}
@@ -259,8 +259,8 @@ static int write_tar_entry(struct archiver_args *args,
if (S_ISLNK(mode)) {
if (size > sizeof(header.linkname)) {
- sprintf(header.linkname, "see %s.paxheader",
- sha1_to_hex(sha1));
+ xsnprintf(header.linkname, sizeof(header.linkname),
+ "see %s.paxheader", sha1_to_hex(sha1));
strbuf_append_ext_header(&ext_header, "linkpath",
buffer, size);
} else
@@ -301,7 +301,7 @@ static int write_global_extended_header(struct archiver_args *args)
memset(&header, 0, sizeof(header));
*header.typeflag = TYPEFLAG_GLOBAL_HEADER;
mode = 0100666;
- strcpy(header.name, "pax_global_header");
+ xsnprintf(header.name, sizeof(header.name), "pax_global_header");
prepare_header(args, &header, mode, ext_header.len);
write_blocked(&header, sizeof(header));
write_blocked(ext_header.buf, ext_header.len);