authorgravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2023-11-06 23:59:03-07:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2023-11-10 13:12:16-07:00
logdfee782d7c30e2ff84060833be375e8cdf92e3be
tree1d3c1a7b2cb86ac4648c2279be5df9e669eb3968
parent53f74d6a04377c9e0d7c3affd32fceea0fd51454

compiler_rt: provide strncpy impl for ssp

1 files changed, 9 insertions(+), 2 deletions(-)

lib/compiler_rt/ssp.zig+9-2
...@@ -16,7 +16,6 @@ const std = @import("std");...@@ -16,7 +16,6 @@ const std = @import("std");
16const common = @import("./common.zig");16const common = @import("./common.zig");
17const builtin = @import("builtin");17const builtin = @import("builtin");
1818
19extern fn strncpy(dest: [*:0]u8, src: [*:0]const u8, n: usize) callconv(.C) [*:0]u8;
20extern fn memset(dest: ?[*]u8, c: u8, n: usize) callconv(.C) ?[*]u8;19extern fn memset(dest: ?[*]u8, c: u8, n: usize) callconv(.C) ?[*]u8;
21extern fn memcpy(noalias dest: ?[*]u8, noalias src: ?[*]const u8, n: usize) callconv(.C) ?[*]u8;20extern fn memcpy(noalias dest: ?[*]u8, noalias src: ?[*]const u8, n: usize) callconv(.C) ?[*]u8;
22extern fn memmove(dest: ?[*]u8, src: ?[*]const u8, n: usize) callconv(.C) ?[*]u8;21extern fn memmove(dest: ?[*]u8, src: ?[*]const u8, n: usize) callconv(.C) ?[*]u8;
...@@ -66,8 +65,16 @@ fn __strcpy_chk(dest: [*:0]u8, src: [*:0]const u8, dest_n: usize) callconv(.C) [...@@ -66,8 +65,16 @@ fn __strcpy_chk(dest: [*:0]u8, src: [*:0]const u8, dest_n: usize) callconv(.C) [
66}65}
6766
68fn __strncpy_chk(dest: [*:0]u8, src: [*:0]const u8, n: usize, dest_n: usize) callconv(.C) [*:0]u8 {67fn __strncpy_chk(dest: [*:0]u8, src: [*:0]const u8, n: usize, dest_n: usize) callconv(.C) [*:0]u8 {
68 @setRuntimeSafety(false);
69 if (dest_n < n) __chk_fail();69 if (dest_n < n) __chk_fail();
70 return strncpy(dest, src, n);70 var i: usize = 0;
71 while (i < n and src[i] != 0) : (i += 1) {
72 dest[i] = src[i];
73 }
74 while (i < n) : (i += 1) {
75 dest[i] = 0;
76 }
77 return dest;
71}78}
7279
73fn __strcat_chk(dest: [*:0]u8, src: [*:0]const u8, dest_n: usize) callconv(.C) [*:0]u8 {80fn __strcat_chk(dest: [*:0]u8, src: [*:0]const u8, dest_n: usize) callconv(.C) [*:0]u8 {