[PATCH 4/5] strbuf_readlink(): support link targets that exceed PATH_MAX
From: Karsten Blees via GitGitGadget <hidden>
Date: 2025-12-16 15:33:56
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Karsten Blees <redacted> The `strbuf_readlink()` function refuses to read link targets that exceed PATH_MAX (even if a sufficient size was specified by the caller). As some platforms (*cough* Windows *cough*) support longer paths, remove this restriction (similar to `strbuf_getcwd()`). Signed-off-by: Karsten Blees <redacted> Signed-off-by: Johannes Schindelin <redacted> --- strbuf.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/strbuf.c b/strbuf.c
index 44a8f6a554..fa4e30f112 100644
--- a/strbuf.c
+++ b/strbuf.c@@ -566,8 +566,6 @@ ssize_t strbuf_write(struct strbuf *sb, FILE *f) return sb->len ? fwrite(sb->buf, 1, sb->len, f) : 0; } -#define STRBUF_MAXLINK (2*PATH_MAX) - int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint) { size_t oldalloc = sb->alloc;
@@ -575,7 +573,7 @@ int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint) if (hint < 32) hint = 32; - while (hint < STRBUF_MAXLINK) { + for (;;) { ssize_t len; strbuf_grow(sb, hint + 1);
--
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