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tar: comment struct fdbase

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* src/common.h (struct fdbase): Add comment.
This commit is contained in:
Paul Eggert
2026-04-12 08:58:01 -07:00
parent 55e8233438
commit 0470c109c0
1 changed files with 15 additions and 1 deletions
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16
src/common.h
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@@ -650,6 +650,20 @@ void skim_member (bool must_copy);
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) < (b) ? (b) : (a))
/* A directory FD, and a file name BASE that matches the regexp "[^/]*[/]*".
If BASE is absolute (i.e., matches "/+"), FD is valid but irrelevant.
Otherwise if FD == AT_FDCWD, BASE is relative to the current directory.
Otherwise if FD == BADFD, the parent directory could not be opened
and BASE is merely the original file name's basename.
Otherwise, FD is open to a parent directory,
and BASE is relative to that directory.
BASE points to storage managed elsewhere; do not free it directly. */
struct fdbase
{
int fd;
char const *base;
};
char const *quote_n_colon (int n, char const *arg);
void assign_string_or_null (char **dest, const char *src)
ATTRIBUTE_NONNULL ((1));
@@ -767,7 +781,7 @@ extern idx_t chdir_current;
idx_t chdir_arg (char const *dir);
void chdir_do (idx_t dir);
struct chdir_id { int err; dev_t st_dev; ino_t st_ino; } chdir_id (void);
struct fdbase { int fd; char const *base; } fdbase (char const *);
struct fdbase fdbase (char const *);
struct fdbase fdbase1 (char const *);
void fdbase_clear (void);
idx_t chdir_count (void);