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Silence warning in digest_matches() on systems with no fexecve(2).

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This commit is contained in:
Todd C. Miller
2016-01-11 16:55:52 -07:00
parent 9308d05e7e
commit 089b468de7
1 changed files with 4 additions and 0 deletions
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4
plugins/sudoers/match.c
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@@ -590,8 +590,10 @@ digest_matches(const char *file, const struct sudo_digest *sd, int *fd)
unsigned char sudoers_digest[SHA512_DIGEST_LENGTH];
unsigned char buf[32 * 1024];
struct digest_function *func = NULL;
#ifdef HAVE_FEXECVE
bool first = true;
bool is_script = false;
#endif /* HAVE_FEXECVE */
size_t nread;
SHA2_CTX ctx;
FILE *fp;
@@ -635,12 +637,14 @@ digest_matches(const char *file, const struct sudo_digest *sd, int *fd)
func->init(&ctx);
while ((nread = fread(buf, 1, sizeof(buf), fp)) != 0) {
#ifdef HAVE_FEXECVE
/* Check for #! cookie and set is_script. */
if (first) {
first = false;
if (nread >= 2 && buf[0] == '#' && buf[1] == '!')
is_script = true;
}
#endif /* HAVE_FEXECVE */
func->update(&ctx, buf, nread);
}
if (ferror(fp)) {