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| author | Rob Landley <rob@landley.net> | 2012-11-20 09:21:52 -0600 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2012-11-20 09:21:52 -0600 |
| commit | bd2e2279d2b8f491ff9a56f6bd9000b0215778f8 (patch) | |
| tree | 48d787551e5525e4cc173045e3ce8b3ab5a50031 /toys/other/readlink.c | |
| parent | db0fff3f849097a20641a15a8f39e5ea67402e9b (diff) | |
| download | toybox-bd2e2279d2b8f491ff9a56f6bd9000b0215778f8.tar.gz | |
Update readlink so -f works. Add -menq while there.
Diffstat (limited to 'toys/other/readlink.c')
| -rw-r--r-- | toys/other/readlink.c | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/toys/other/readlink.c b/toys/other/readlink.c index b7f77f91..b237a510 100644 --- a/toys/other/readlink.c +++ b/toys/other/readlink.c @@ -2,27 +2,26 @@ * * Copyright 2007 Rob Landley <rob@landley.net> -USE_READLINK(NEWTOY(readlink, "<1f", TOYFLAG_BIN)) +USE_READLINK(NEWTOY(readlink, "<1>1femnq[-fem]", TOYFLAG_BIN)) config READLINK bool "readlink" default n help - usage: readlink + usage: readlink FILE - Show what a symbolic link points to. + With no options, show what symlink points to, return error if not symlink. -config READLINK_F - bool "readlink -f" - default n - depends on READLINK - help - usage: readlink [-f] + Options for producing cannonical paths (all symlinks/./.. resolved): - -f Show full cannonical path, with no symlinks in it. Returns - nonzero if nothing could currently exist at this location. + -e cannonical path to existing file (fail if does not exist) + -f cannonical path to creatable file (fail if directory does not exist) + -m cannonical path + -n no trailing newline + -q quiet (no output, just error code) */ +#define FOR_readlink #include "toys.h" void readlink_main(void) @@ -31,11 +30,18 @@ void readlink_main(void) // Calculating full cannonical path? - if (CFG_READLINK_F && toys.optflags) s = xrealpath(*toys.optargs); - else s = xreadlink(*toys.optargs); + if (toys.optflags & (FLAG_f|FLAG_e|FLAG_m)) { + unsigned u = 0; + + if (toys.optflags & FLAG_f) u++; + if (toys.optflags & FLAG_m) u=999999999; + + s = xabspath(*toys.optargs, u); + } else s = xreadlink(*toys.optargs); if (s) { - xputs(s); + if (!(toys.optflags & FLAG_q)) + xprintf((toys.optflags & FLAG_n) ? "%s" : "%s\n", s); if (CFG_TOYBOX_FREE) free(s); } else toys.exitval = 1; } |