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lbutils/file: only support real pread/pwrite

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the portable version was written for fun, but
it's bloat, and makes the code hard to read.

every unix since about 2005 has these functions.

Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-31 12:22:42 +01:00
parent a769537554
commit 6d9f162f5b
4 changed files with 24 additions and 201 deletions
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util/libreboot-utils/include/common.h
+2 -23
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@@ -88,17 +88,6 @@ int fchmod(int fd, mode_t mode);
#define MAX_ZERO_RW_RETRY 5
#endif
#ifndef REAL_POS_IO
#define REAL_POS_IO 1
#endif
#ifndef LOOP_EAGAIN
#define LOOP_EAGAIN 1
#endif
#ifndef LOOP_EINTR
#define LOOP_EINTR 1
#endif
#ifndef _FILE_OFFSET_BITS
#define _FILE_OFFSET_BITS 64
#endif
@@ -179,9 +168,6 @@ int fchmod(int fd, mode_t mode);
#define ARGC_3 3
#define ARGC_4 4
#define NO_LOOP_EAGAIN 0
#define NO_LOOP_EINTR 0
/* For checking if an fd is a normal file.
* Portable for old Unix e.g. v7 (S_IFREG),
* 4.2BSD (S_IFMT), POSIX (S_ISREG).
@@ -477,18 +463,15 @@ ssize_t rw_gbe_file_exact(int fd, unsigned char *mem, size_t nrw,
int fsync_dir(const char *path);
ssize_t rw_file_exact(int fd, unsigned char *mem, size_t len,
off_t off, int rw_type, int loop_eagain, int loop_eintr,
size_t max_retries, int off_reset);
off_t off, int rw_type, size_t max_retries, int off_reset);
ssize_t prw(int fd, void *mem, size_t nrw,
off_t off, int rw_type, int loop_eagain, int loop_eintr,
int off_reset);
off_t off, int rw_type);
int io_args(int fd, void *mem, size_t nrw,
off_t off, int rw_type);
int check_file(int fd, struct stat *st);
ssize_t rw_over_nrw(ssize_t r, size_t nrw);
off_t lseek_on_eintr(int fd, off_t off,
int whence, int loop_eagain, int loop_eintr);
int try_err(int loop_err, int errval);
ssize_t read_on_eintr(int fd,
void *buf, size_t count);
ssize_t write_on_eintr(int fd,
@@ -635,10 +618,6 @@ typedef char bool_skip_checksum_read[(SKIP_CHECKSUM_READ==0)?1:-1];
typedef char bool_checksum_read[(CHECKSUM_READ==1)?1:-1];
typedef char bool_skip_checksum_write[(SKIP_CHECKSUM_WRITE==0)?1:-1];
typedef char bool_checksum_write[(CHECKSUM_WRITE==1)?1:-1];
typedef char bool_loop_eintr[(LOOP_EINTR==1||LOOP_EINTR==0)?1:-1];
typedef char bool_loop_eagain[(LOOP_EAGAIN==1||LOOP_EAGAIN==0)?1:-1];
typedef char bool_no_loop_eintr[(NO_LOOP_EINTR==0)?1:-1];
typedef char bool_no_loop_eagain[(NO_LOOP_EAGAIN==0)?1:-1];
typedef char bool_off_err[(OFF_ERR==0)?1:-1];
typedef char bool_off_reset[(OFF_RESET==0||OFF_RESET==1)?1:-1];