diff options
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | posix/execvp.c | 26 |
2 files changed, 17 insertions, 12 deletions
@@ -1,5 +1,8 @@ 1999-08-20 Ulrich Drepper <drepper@cygnus.com> + * posix/execvp.c (execvp): Allocate array name of correct size. + Optimize inner loop. Use execve directly, not execv. + * elf/elf.h: Corrected SHT_ values from new draft. 1999-08-20 Andreas Schwab <schwab@suse.de> diff --git a/posix/execvp.c b/posix/execvp.c index 3f93357..2756829 100644 --- a/posix/execvp.c +++ b/posix/execvp.c @@ -47,7 +47,7 @@ script_execute (const char *file, char *const argv[]) } /* Execute the shell. */ - execv (new_argv[0], new_argv); + __execve (new_argv[0], new_argv, __environ); } } @@ -69,7 +69,7 @@ execvp (file, argv) if (strchr (file, '/') != NULL) { /* Don't search when it contains a slash. */ - execv (file, argv); + __execve (file, argv, __environ); if (errno == ENOEXEC) script_execute (file, argv); @@ -93,30 +93,32 @@ execvp (file, argv) } len = strlen (file) + 1; - name = __alloca (strlen (path) + len); + name = __alloca (strlen (path) + len + 1); + /* Copy the file name at the top. */ + name = (char *) memcpy (name - len, file, len); + /* And add the slash. */ + *--name = '/'; + p = path; do { + char *startp; + path = p; p = __strchrnul (path, ':'); if (p == path) /* Two adjacent colons, or a colon at the beginning or the end of `PATH' means to search the current directory. */ - (void) memcpy (name, file, len); + startp = name + 1; else - { - /* Construct the pathname to try. */ - char *tmp = __mempcpy (name, path, p - path); - *tmp++ = '/'; - memcpy (tmp, file, len); - } + startp = (char *) memcpy (name - (p - path), path, p - path); /* Try to execute this name. If it works, execv will not return. */ - execv (name, argv); + __execve (startp, argv, __environ); if (errno == ENOEXEC) - script_execute (name, argv); + script_execute (startp, argv); switch (errno) { |