diff options
| author | Ingo Schwarze <schwarze@openbsd.org> | 2021-08-07 13:02:10 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@openbsd.org> | 2021-08-07 13:02:10 +0000 |
| commit | 87aab9cae5c14191a96f9f17bd2723fe998eb2be (patch) | |
| tree | 1f8362379b259cc5d2ebacaab4f993c76734d742 /mandocdb.c | |
| parent | ea3a79e10f228a85c638a2ad8f4f9e88d493a8c3 (diff) | |
| download | mandoc-87aab9cae5c14191a96f9f17bd2723fe998eb2be.tar.gz | |
Rename the compile-time configuration variable $HOMEBREWDIR to
$READ_ALLOWED_PATH, allow it to contain more than one directory,
and explain how to use it for NixOS and for GNU Guix Linux.
Feature improvement based on observations, input, and earlier patches
from Lukas Epple <sternenseemann at systemli dot org>, and final
patch also tested by Lukas.
Diffstat (limited to 'mandocdb.c')
| -rw-r--r-- | mandocdb.c | 30 |
1 files changed, 26 insertions, 4 deletions
@@ -165,6 +165,9 @@ static void putkey(const struct mpage *, char *, uint64_t); static void putkeys(const struct mpage *, char *, size_t, uint64_t); static void putmdockey(const struct mpage *, const struct roff_node *, uint64_t, int); +#ifdef READ_ALLOWED_PATH +static int read_allowed(const char *); +#endif static int render_string(char **, size_t *); static void say(const char *, const char *, ...) __attribute__((__format__ (__printf__, 2, 3))); @@ -612,8 +615,8 @@ treescan(void) continue; } if (strncmp(buf, basedir, basedir_len) != 0 -#ifdef HOMEBREWDIR - && strncmp(buf, HOMEBREWDIR, strlen(HOMEBREWDIR)) +#ifdef READ_ALLOWED_PATH + && !read_allowed(buf) #endif ) { if (warnings) say("", @@ -823,8 +826,8 @@ filescan(const char *infile) start = usefile; else if (strncmp(usefile, basedir, basedir_len) == 0) start = usefile + basedir_len; -#ifdef HOMEBREWDIR - else if (strncmp(usefile, HOMEBREWDIR, strlen(HOMEBREWDIR)) == 0) +#ifdef READ_ALLOWED_PATH + else if (read_allowed(usefile)) start = usefile; #endif else { @@ -2381,6 +2384,25 @@ set_basedir(const char *targetdir, int report_baddir) return 1; } +#ifdef READ_ALLOWED_PATH +static int +read_allowed(const char *candidate) +{ + const char *cp; + size_t len; + + for (cp = READ_ALLOWED_PATH;; cp += len) { + while (*cp == ':') + cp++; + if (*cp == '\0') + return 0; + len = strcspn(cp, ":"); + if (strncmp(candidate, cp, len) == 0) + return 1; + } +} +#endif + static void say(const char *file, const char *format, ...) { |