Apple-2gs-SW
/
hush
mirror of https://github.com/sheumann/hush.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Properly support running programs using relative pathnames. 

Previously, relative pathnames other than those starting with "." or ".." wouldn't be recognized.
This commit is contained in:
Stephen Heumann 2015-02-03 21:24:10 -06:00
parent ad96f52394
commit 0d0ec552b5
1 changed files with 20 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
libbb/exec.gno.c
View File

@ -181,7 +181,6 @@ int execve(const char *path, char *const *argv, char *const *envp)
fileInfoRec.pCount = 4;
fileInfoRec.pathname = path_gs;
GetFileInfoGS(&fileInfoRec);
/* If it's not an EXEC file, error out. */
if (toolerror()) {
errno = ENOENT;
goto error_ret;
@ -200,7 +199,7 @@ int execve(const char *path, char *const *argv, char *const *envp)
args = NULL;
/* If _execve kernel call failed, consider trying to execute
* the file as a script. */
* the file as a script. If it's not an EXEC file, error out. */
if (fileInfoRec.fileType != 0xB0 || fileInfoRec.auxType != 0x0006) {
errno = EACCES;
goto error_ret;
@ -295,26 +294,32 @@ int execvp(const char *file, char *const *argv)
int result;
char *path, *path2;
path = buildPath(file);
if (path == NULL) {
errno = ENOENT;
return -1;
}
if (!strpbrk(file, "/:")) {
path = buildPath(file);
if (path == NULL) {
errno = ENOENT;
return -1;
}
/* Move path to memory that will be freed following _execve */
path2 = alloc_for_current_process(strlen(path) + 1);
if (path2 == NULL) {
/* Move path to memory that will be freed following _execve */
path2 = alloc_for_current_process(strlen(path) + 1);
if (path2 == NULL) {
free(path);
errno = ENOMEM;
return -1;
}
strcpy(path2, path);
free(path);
errno = ENOMEM;
return -1;
} else {
path2 = (char *)file;
}
strcpy(path2, path);
free(path);
result = execve(path2, argv, environ);
/* error case */
dealloc_for_current_process(path2);
if (path2 != file) {
dealloc_for_current_process(path2);
}
return result;
}
#endif