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| author | Denys Vlasenko | 2021-06-06 12:07:11 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2021-06-06 12:08:43 +0200 |
| commit | 457825f77a7c7286647ee888a1000a6bb12ca8fc (patch) | |
| tree | f4deac5510cbae6299b964f48d4c8cad8bde3ce4 /libbb | |
| parent | a1b0d3856d9a0419cb74bf4c87525265871b5868 (diff) | |
| download | busybox-457825f77a7c7286647ee888a1000a6bb12ca8fc.zip busybox-457825f77a7c7286647ee888a1000a6bb12ca8fc.tar.gz | |
shells: do not allow bare "read" in non-bash compat configs
On Sat, Feb 9, 2019 Cristian Ionescu-Idbohrn wrote:
> In my case (at work), I have to watch and prevent people from doing
> unportable things. For me, that's a burden.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/getopt32.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/libbb/getopt32.c b/libbb/getopt32.c index 3785100..5ab4d66 100644 --- a/libbb/getopt32.c +++ b/libbb/getopt32.c @@ -89,6 +89,12 @@ getopt32(char **argv, const char *applet_opts, ...) root:x:0:0:root:/root:/bin/bash user:x:500:500::/home/user:/bin/bash + "^" options string is "^optchars""\0""opt_complementary". + + "!" If the first character in the applet_opts string is a '!', + report bad options, missing required options, + inconsistent options with all-ones return value (instead of abort. + "+" If the first character in the applet_opts string is a plus, then option processing will stop as soon as a non-option is encountered in the argv array. Useful for applets like env @@ -96,10 +102,7 @@ getopt32(char **argv, const char *applet_opts, ...) env -i ls -d / Here we want env to process just the '-i', not the '-d'. - "!" Report bad options, missing required options, - inconsistent options with all-ones return value (instead of abort). - - "^" options string is "^optchars""\0""opt_complementary". + (The order of multiple prefixes must be "^!+...") uint32_t getopt32long(char **argv, const char *applet_opts, const char *logopts...) |