diff options
Diffstat (limited to '')
-rw-r--r-- | src/unistd/searchpath2.c | 76 |
1 files changed, 3 insertions, 73 deletions
diff --git a/src/unistd/searchpath2.c b/src/unistd/searchpath2.c index 9921550..b2dd800 100644 --- a/src/unistd/searchpath2.c +++ b/src/unistd/searchpath2.c @@ -16,11 +16,6 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <unistd.h> -#include <stdlib.h> -#include <string.h> -/* TODO temporary contants from other headers { */ -#define _CS_PATH 1 -/* } */ @@ -43,9 +38,8 @@ * * @param name The name of the sought executable. Must not be `NULL`. * @param fallback Value to use instead of the value of $PATH, if - * path is not defined. If `NULL` the fall rules for - * the `exec`-functions are used: The current working - * directory, and the default value for $PATH. + * path is not defined. If `NULL` the default value + * for $PATH is used. * @return The pathname of the sought file, `NULL` on error, * or if not found. Files that are not executable * are (almost) ignored. @@ -63,70 +57,6 @@ */ char* searchpath2(const char* name, const char* fallback) { - char* path; - size_t len = 0; - char* pathname = NULL; - char* p; - char* q; - int eacces = 0; - int saved_errno; - - if (strstarts(name, "./") || strstarts(name, "../") || strstarts(name, "/")) - { - if (access(name, X_OK) == 0) - return strdup(name); - return NULL; - } - - path = getenv("PATH"); - if ((path == NULL) && (fallback == NULL)) - { - if ((len = confstr(_CS_PATH, NULL, 0))) - { - path = malloc((2 + len) * sizeof(char)); - if (path == NULL) - goto fail; - if (!confstr(_CS_PATH, stpcpy(path, ".:"), len)) - free(path), path = NULL; - } - if (path == NULL) - path = strdup(".:/usr/local/bin:/bin:/usr/bin"); - } - else - path = strdup(path == NULL ? fallback : path); - if (path == NULL) - goto fail; - - pathname = malloc((strlen(path) + strlen(name) + 2) * sizeof(char)); - if (pathname == NULL) - goto fail; - - for (p = path; *p; p = q + 1) - { - if (p == (q = strchr(p, ':'))) - continue; - *q = '\0'; - - stpcpy(stpcpy(stpcpy(pathname, p), "/"), name); - - if (access(pathname, X_OK) == 0) - { - char* truncated = realloc(pathname, (strlen(pathname) + 1) * sizeof(char)); - return truncated == NULL ? pathname : truncated; - } - else if (errno == EACCES) eacces = 1; - else if (errno != ENOENT) goto fail; - } - - free(path); - free(pathname); - return errno = (eacces ? EACCES : ENOENT), -1; - - fail: - saved_errno = errno; - free(path); - free(pathname); - errno = saved_errno; - return -1; + return searchpath3(name, fallback, NULL); } |