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A patch from Andreas Neuhaus to be especially careful to not dup

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any env variables when spawning child processes.
This commit is contained in:
Eric Andersen 2001-03-16 01:14:04 +00:00
parent 4aaefc2a50
commit 7f1978570f
2 changed files with 34 additions and 20 deletions
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25
init.c
View File

@ -396,10 +396,10 @@ static void console_init()
static pid_t run(char *command, char *terminal, int get_enter) static pid_t run(char *command, char *terminal, int get_enter)
{ {
int i=0, j=0; int i, j;
int fd; int fd;
pid_t pid; pid_t pid;
char *tmpCmd; char *tmpCmd, *s;
char *cmd[255], *cmdpath; char *cmd[255], *cmdpath;
char buf[255]; char buf[255];
static const char press_enter[] = static const char press_enter[] =
@ -410,18 +410,25 @@ static pid_t run(char *command, char *terminal, int get_enter)
"\nPlease press Enter to activate this console. "; "\nPlease press Enter to activate this console. ";
char *environment[MAXENV+1] = { char *environment[MAXENV+1] = {
termType,
"HOME=/", "HOME=/",
"PATH=/usr/bin:/bin:/usr/sbin:/sbin", "PATH=/usr/bin:/bin:/usr/sbin:/sbin",
"SHELL=/bin/sh", "SHELL=/bin/sh",
termType, "USER=root",
"USER=root" NULL
}; };
while (environment[i]) i++; /* inherit environment to the child, merging our values -andy */
while ((environ[j]) && (i < MAXENV)) { for (i=0; environ[i]; i++) {
if (strncmp(environ[j], "TERM=", 5)) for (j=0; environment[j]; j++) {
environment[i++] = environ[j]; s = strchr(environment[j], '=');
j++; if (!strncmp(environ[i], environment[j], s - environment[j]))
break;
}
if (!environment[j]) {
environment[j++] = environ[i];
environment[j] = NULL;
}
} }
if ((pid = fork()) == 0) { if ((pid = fork()) == 0) {

25
init/init.c
View File

@ -396,10 +396,10 @@ static void console_init()
static pid_t run(char *command, char *terminal, int get_enter) static pid_t run(char *command, char *terminal, int get_enter)
{ {
int i=0, j=0; int i, j;
int fd; int fd;
pid_t pid; pid_t pid;
char *tmpCmd; char *tmpCmd, *s;
char *cmd[255], *cmdpath; char *cmd[255], *cmdpath;
char buf[255]; char buf[255];
static const char press_enter[] = static const char press_enter[] =
@ -410,18 +410,25 @@ static pid_t run(char *command, char *terminal, int get_enter)
"\nPlease press Enter to activate this console. "; "\nPlease press Enter to activate this console. ";
char *environment[MAXENV+1] = { char *environment[MAXENV+1] = {
termType,
"HOME=/", "HOME=/",
"PATH=/usr/bin:/bin:/usr/sbin:/sbin", "PATH=/usr/bin:/bin:/usr/sbin:/sbin",
"SHELL=/bin/sh", "SHELL=/bin/sh",
termType, "USER=root",
"USER=root" NULL
}; };
while (environment[i]) i++; /* inherit environment to the child, merging our values -andy */
while ((environ[j]) && (i < MAXENV)) { for (i=0; environ[i]; i++) {
if (strncmp(environ[j], "TERM=", 5)) for (j=0; environment[j]; j++) {
environment[i++] = environ[j]; s = strchr(environment[j], '=');
j++; if (!strncmp(environ[i], environment[j], s - environment[j]))
break;
}
if (!environment[j]) {
environment[j++] = environ[i];
environment[j] = NULL;
}
} }
if ((pid = fork()) == 0) { if ((pid = fork()) == 0) {