Commit 43eb9b52ccac894023800115e8395cdb413be14a | zig

author	Carl Åstholm <carl@astholm.se> 2025-11-05 16:34:07+01:00
committer	Ryan Liptak <squeek502@hotmail.com> 2025-11-08 02:11:52-08:00
log	43eb9b52ccac894023800115e8395cdb413be14a
tree	66a3070f42960d9e7b8c1ec83b8e0043a6dd764a
parent	38d44404a589590e0443444f2206d7e9859b09fe

ld.lld fails with "truncated or malformed archive" errors when reading
archive header field values that are not valid numbers.

1 files changed, 5 insertions(+), 1 deletions(-)

src/link/Elf/Archive.zig+5-1

...	...	@@ -118,7 +118,6 @@ pub fn setArHdr(opts: struct {
118	118	.ar_fmag = undefined,
119	119	};
120	120	@memset(mem.asBytes(&hdr), 0x20);
121		@memcpy(&hdr.ar_fmag, elf.ARFMAG);
122	121
123	122	{
124	123	var writer: std.Io.Writer = .fixed(&hdr.ar_name);
...	...	@@ -129,10 +128,15 @@ pub fn setArHdr(opts: struct {
129	128	.name_off => \|x\| writer.print("/{d}", .{x}) catch unreachable,
130	129	}
131	130	}
	131	hdr.ar_date[0] = '0';
	132	hdr.ar_uid[0] = '0';
	133	hdr.ar_gid[0] = '0';
	134	hdr.ar_mode[0] = '0';
132	135	{
133	136	var writer: std.Io.Writer = .fixed(&hdr.ar_size);
134	137	writer.print("{d}", .{opts.size}) catch unreachable;
135	138	}
	139	hdr.ar_fmag = elf.ARFMAG.*;
136	140
137	141	return hdr;
138	142	}