Messages in this thread Patch in this message | | | From | Alejandro Colomar <> | Subject | [PATCH] lseek.2: SYNOPSIS: Use correct types | Date | Sat, 21 Nov 2020 18:30:56 +0100 |
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The Linux kernel uses 'unsigned int' instead of 'int' for 'fd' and 'whence'. As glibc provides no wrapper, use the same types the kernel uses.
src/linux$ grep -rn "SYSCALL_DEFINE.*lseek" fs/read_write.c:322:SYSCALL_DEFINE3(lseek, unsigned int, fd, off_t, offset, unsigned int, whence) fs/read_write.c:328:COMPAT_SYSCALL_DEFINE3(lseek, unsigned int, fd, compat_off_t, offset, unsigned int, whence) fs/read_write.c:336:SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high, arch/mips/kernel/linux32.c:65:SYSCALL_DEFINE5(32_llseek, unsigned int, fd, unsigned int, offset_high,
src/linux$ sed -n 322,325p fs/read_write.c SYSCALL_DEFINE3(lseek, unsigned int, fd, off_t, offset, unsigned int, whence) { return ksys_lseek(fd, offset, whence); }
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com> --- man2/lseek.2 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/man2/lseek.2 b/man2/lseek.2 index e35e410a6..2ff878ffa 100644 --- a/man2/lseek.2 +++ b/man2/lseek.2 @@ -51,7 +51,7 @@ lseek \- reposition read/write file offset .br .B #include <unistd.h> .PP -.BI "off_t lseek(int " fd ", off_t " offset ", int " whence ); +.BI "off_t lseek(unsigned int " fd ", off_t " offset ", unsigned int " whence ); .SH DESCRIPTION .BR lseek () repositions the file offset of the open file description -- 2.29.2
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