On 01/16/2015 04:29 AM, Carlos O'Donell wrote: > All of the BSD interfaces, including glibc's own implementation > of getpw return -1 and set errno to 0 to indicate that there > was no user corresponding to that uid. > > I have never under any condition seen an NSS backend return > ENOENT via the set of APIs that getpw uses internally in > glibc. > > Therefore I would suggest the manual page be expanded to include > 0 in the list of valid errno values that indicate no corresponding > user. I reorganize the list of errors to have the non-error > at the top, as is done with getgrnam.3 and getpwnam.3 which have > similar behaviour in the non-error case. > > Patch against master. > > diff --git a/man3/getpw.3 b/man3/getpw.3 > index 4054823..3eed9a7 100644 > --- a/man3/getpw.3 > +++ b/man3/getpw.3 > @@ -77,14 +77,14 @@ function returns 0 on success; on error, it returns \-1, and > is set to indicate the error. > .SH ERRORS > .TP > +.BR 0 " or " ENOENT > +No user corresponding to > +.IR uid . > +.TP > .B EINVAL > .I buf > is NULL. > .TP > -.B 0 or ENOENT > -No user corresponding to > -.IR uid . > -.TP > .B ENOMEM > Insufficient memory to allocate > .I passwd Hi Carlos, This patch was broken. (I think you must have prepared a preceding patch that you did not send. I take your point, but I think a little more could be said. I instead applied the patch below. Okay? Thanks, Michael diff --git a/man3/getpw.3 b/man3/getpw.3 index cf7eb69..9f2732f 100644 --- a/man3/getpw.3 +++ b/man3/getpw.3 @@ -75,16 +75,26 @@ The function returns 0 on success; on error, it returns \-1, and .I errno is set to indicate the error. + +If +.I uid +is not found in the password database, +.BR getpw () +returns 0, sets +.I errno +to 0, and leaves +.I buf +unchanged. .SH ERRORS .TP +.BR 0 " or " ENOENT +No user corresponding to +.IR uid . +.TP .B EINVAL .I buf is NULL. .TP -.B ENOENT -No user corresponding to -.IR uid . -.TP .B ENOMEM Insufficient memory to allocate .I passwd -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
