Commit cb98cdcd authored by Mattia Dongili's avatar Mattia Dongili Committed by Linus Torvalds

[PATCH] uml: search from uml_net in a more reasonable PATH

Append /usr/lib/uml to the existing PATH environment variable to let execvp()
search uml_net in FHS compliant locations.
Signed-off-by: default avatarMattia Dongili <malattia@linux.it>
Signed-off-by: default avatarPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: default avatarJeff Dike <jdike@addtoit.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent b15fb6b1
......@@ -74,6 +74,34 @@ static void last_ditch_exit(int sig)
exit(1);
}
#define UML_LIB_PATH ":/usr/lib/uml"
static void setup_env_path(void)
{
char *new_path = NULL;
char *old_path = NULL;
int path_len = 0;
old_path = getenv("PATH");
/* if no PATH variable is set or it has an empty value
* just use the default + /usr/lib/uml
*/
if (!old_path || (path_len = strlen(old_path)) == 0) {
putenv("PATH=:/bin:/usr/bin/" UML_LIB_PATH);
return;
}
/* append /usr/lib/uml to the existing path */
path_len += strlen("PATH=" UML_LIB_PATH) + 1;
new_path = malloc(path_len);
if (!new_path) {
perror("coudn't malloc to set a new PATH");
return;
}
snprintf(new_path, path_len, "PATH=%s" UML_LIB_PATH, old_path);
putenv(new_path);
}
extern int uml_exitcode;
extern void scan_elf_aux( char **envp);
......@@ -114,6 +142,8 @@ int main(int argc, char **argv, char **envp)
set_stklim();
setup_env_path();
new_argv = malloc((argc + 1) * sizeof(char *));
if(new_argv == NULL){
perror("Mallocing argv");
......
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