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author | 2019-12-29 10:54:28 +0100 | |
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committer | 2019-12-29 10:54:28 +0100 | |
commit | 7cdf692beb93c596b4bf4f5f7b5bb8bcc69a27ea (patch) | |
tree | effaefccacb9f9aa4da276b101f788b11356d816 /q.c | |
parent | qfile: make qfile_check_plibreg not trigger on an empty file (/) (diff) | |
download | portage-utils-7cdf692beb93c596b4bf4f5f7b5bb8bcc69a27ea.tar.gz portage-utils-7cdf692beb93c596b4bf4f5f7b5bb8bcc69a27ea.tar.bz2 portage-utils-7cdf692beb93c596b4bf4f5f7b5bb8bcc69a27ea.zip |
q: improve applet searching somewhat, change warn app name
- use a single loop iteration to match an applet
- set full name of applet (qlop iso lop) in argv0 for warn() to match
the running command
- use name of aliased applet when invoked by an alias (belongs -> qfile)
Bug: https://bugs.gentoo.org/701968
Signed-off-by: Fabian Groffen <grobian@gentoo.org>
Diffstat (limited to 'q.c')
-rw-r--r-- | q.c | 37 |
1 files changed, 27 insertions, 10 deletions
@@ -48,24 +48,41 @@ APPLET lookup_applet(const char *applet) if (strlen(applet) < 1) return NULL; - for (i = 0; applets[i].name; ++i) { - if (strcmp(applets[i].name, applet) == 0) { + if (applet[0] == 'q') + applet++; + + /* simple case, e.g. something like "qlop" or "q lop" both being "lop" */ + for (i = 0; applets[i].desc != NULL; i++) { + if (strcmp(applets[i].name + 1, applet) == 0) { argv0 = applets[i].name; - if (i && applets[i].desc != NULL) - ++argv0; /* chop the leading 'q' */ return applets[i].func; } } - /* No applet found? Search by shortname then... */ - for (i = 1; applets[i].desc != NULL; ++i) { - if (strcmp(applets[i].name + 1, applet) == 0) { - argv0 = applets[i].name + 1; - return applets[i].func; + /* this is possibly an alias like "belongs" + * NOTE: we continue where the previous loop left, e.g. on the first + * alias (desc == NULL) */ + for ( ; applets[i].name != NULL; i++) { + if (strcmp(applets[i].name, applet) == 0) { + unsigned int j; + + /* lookup the real name for this alias */ + for (j = 1; applets[j].desc != NULL; j++) { + if (applets[j].func == applets[i].func) { + argv0 = applets[j].name; + return applets[j].func; + } + } + + /* this shouldn't happen and means our array from applets.h + * is inconsistent */ + warn("invalid applet alias '%s': target applet unknown", applet); + return NULL; } } + /* still nothing ? those bastards ... */ - warn("Unknown applet '%s'", applet); + warn("unknown applet: %s", applet); return NULL; } |