From: Mattia Dongili Date: Mon, 1 May 2006 19:16:01 +0000 (-0700) Subject: [PATCH] uml: search from uml_net in a more reasonable PATH X-Git-Tag: v2.6.17-rc4~82 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=cb98cdcd0dd892dcaec7dabd57c3b00890006b61;p=linux-2.6-omap-h63xx.git [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: Mattia Dongili Signed-off-by: Paolo 'Blaisorblade' Giarrusso Acked-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c index 2878e89a674..3a0ac38e978 100644 --- a/arch/um/os-Linux/main.c +++ b/arch/um/os-Linux/main.c @@ -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");