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Audit hostname(1)

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1) Be strict about argc
2) Fix a small error in the manpage
This commit is contained in:
FRIGN 2015-02-28 21:22:55 +01:00
parent f20075b0bc
commit 80a394139a
3 changed files with 8 additions and 5 deletions
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2
README
View File

@ -35,7 +35,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
#* fold yes none #* fold yes none
=* grep yes none =* grep yes none
=* head yes none =* head yes none
=* hostname non-posix none =*| hostname non-posix none
=* kill yes none =* kill yes none
=*| link yes none =*| link yes none
=* ln yes none =* ln yes none

2
hostname.1
View File

@ -1,4 +1,4 @@
.Dd January 30, 2015 .Dd February 28, 2015
.Dt HOSTNAME 1 .Dt HOSTNAME 1
.Os sbase .Os sbase
.Sh NAME .Sh NAME

7
hostname.c
View File

@ -21,13 +21,16 @@ main(int argc, char *argv[])
usage(); usage();
} ARGEND; } ARGEND;
if (argc < 1) { if (!argc) {
if (gethostname(host, sizeof(host)) < 0) if (gethostname(host, sizeof(host)) < 0)
eprintf("gethostname:"); eprintf("gethostname:");
puts(host); puts(host);
} else { } else if (argc == 1) {
if (sethostname(argv[0], strlen(argv[0])) < 0) if (sethostname(argv[0], strlen(argv[0])) < 0)
eprintf("sethostname:"); eprintf("sethostname:");
} else {
usage();
} }
return 0; return 0;
} }