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| | #include "search-path.h"
#include <stdlib.h>
#include <talloc.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
notmuch_bool_t
test_for_executable (const char *exename)
{
char *c = NULL, *save = NULL, *tok;
size_t n;
int dfd = -1;
notmuch_bool_t ret = FALSE;
if (strchr (exename, '/')) {
if (0 == access (exename, X_OK))
return TRUE;
else
return FALSE;
}
c = getenv ("PATH");
if (c)
c = talloc_strdup (NULL, c);
else {
n = confstr (_CS_PATH, NULL, 0);
c = (char *) talloc_size (NULL, n);
if (! c)
return FALSE;
confstr (_CS_PATH, c, n);
}
tok = strtok_r (c, ":", &save);
while (tok) {
dfd = open (tok, O_DIRECTORY | O_RDONLY);
if (dfd != -1) {
if (! faccessat (dfd, exename, X_OK, 0)) {
ret = TRUE;
goto done;
}
close (dfd);
}
tok = strtok_r (NULL, ":", &save);
}
done:
if (dfd != -1)
close (dfd);
if (c)
talloc_free (c);
return ret;
}
|