mirror of
https://git.busybox.net/busybox.git
synced 2024-12-04 11:03:26 +08:00
Sigh -- can't sleep. Clean up some mem leaks, fixed some bugs.
-Erik
This commit is contained in:
Eric Andersen
parent
9c5fcc3408
commit
6efc48c1ae
82
lash.c
82
lash.c
@ -46,10 +46,7 @@
|
||||
#include "cmdedit.h"
|
||||
#endif
|
||||
|
||||
#define bb_need_full_version
|
||||
#define BB_DECLARE_EXTERN
|
||||
#include "messages.c"
|
||||
|
||||
#define MAX_LINE 256 /* size of input buffer for `read' builtin */
|
||||
#define MAX_READ 128 /* size of input buffer for `read' builtin */
|
||||
#define JOB_STATUS_FORMAT "[%d] %-22s %.40s\n"
|
||||
|
||||
@ -147,7 +144,7 @@ static struct builtInCommand bltins_forking[] = {
|
||||
};
|
||||
|
||||
static char *prompt = "# ";
|
||||
static char *cwd = NULL;
|
||||
static char *cwd;
|
||||
static char *local_pending_command = NULL;
|
||||
|
||||
#ifdef BB_FEATURE_SH_COMMAND_EDITING
|
||||
@ -175,7 +172,7 @@ static int builtin_cd(struct job *cmd, struct jobSet *junk)
|
||||
printf("cd: %s: %s\n", newdir, strerror(errno));
|
||||
return FALSE;
|
||||
}
|
||||
getcwd(cwd, sizeof(cwd));
|
||||
getcwd(cwd, sizeof(char)*MAX_LINE);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
@ -289,7 +286,7 @@ static int builtin_jobs(struct job *dummy, struct jobSet *jobList)
|
||||
/* built-in 'pwd' handler */
|
||||
static int builtin_pwd(struct job *dummy, struct jobSet *junk)
|
||||
{
|
||||
getcwd(cwd, sizeof(cwd));
|
||||
getcwd(cwd, sizeof(char)*MAX_LINE);
|
||||
fprintf(stdout, "%s\n", cwd);
|
||||
return TRUE;
|
||||
}
|
||||
@ -780,13 +777,8 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Make a copy of any stuff left over in the command
|
||||
* line after the second backtick */
|
||||
charptr2 = xmalloc(strlen(ptr)+1);
|
||||
memcpy(charptr2, ptr+1, strlen(ptr));
|
||||
|
||||
/* Make some space to hold just the backticked command */
|
||||
charptr1 = xmalloc(1+ptr-src);
|
||||
charptr1 = charptr2 = xmalloc(1+ptr-src);
|
||||
snprintf(charptr1, 1+ptr-src, src);
|
||||
newJob = xmalloc(sizeof(struct job));
|
||||
/* Now parse and run the backticked command */
|
||||
@ -796,7 +788,14 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
runCommand(newJob, &njobList, 0, pipefd);
|
||||
}
|
||||
checkJobs(jobList);
|
||||
free(charptr1);
|
||||
freeJob(newJob);
|
||||
free(charptr2);
|
||||
|
||||
/* Make a copy of any stuff left over in the command
|
||||
* line after the second backtick */
|
||||
charptr2 = xmalloc(strlen(ptr)+1);
|
||||
memcpy(charptr2, ptr+1, strlen(ptr));
|
||||
|
||||
|
||||
/* Copy the output from the backtick-ed command into the
|
||||
* command line, making extra room as needed */
|
||||
@ -819,13 +818,12 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
/* Now paste into the *commandPtr all the stuff
|
||||
* leftover after the second backtick */
|
||||
memcpy(src, charptr2, strlen(charptr2));
|
||||
fprintf(stderr,"*commandPtr='%s'\n", *commandPtr);
|
||||
free(charptr2);
|
||||
|
||||
|
||||
/* Now recursively call parseCommand to deal with the new
|
||||
* and improved version of the command line with the backtick
|
||||
* results expanded in place... */
|
||||
freeJob(job);
|
||||
return(parseCommand(commandPtr, job, jobList, isBg));
|
||||
}
|
||||
break;
|
||||
@ -863,24 +861,29 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int outPipe[2])
|
||||
{
|
||||
struct job *job;
|
||||
int nextin=0, nextout, stdoutfd=fileno(stdout);
|
||||
int i;
|
||||
int nextin, nextout;
|
||||
int pipefds[2]; /* pipefd[0] is for reading */
|
||||
struct builtInCommand *x;
|
||||
#ifdef BB_FEATURE_SH_STANDALONE_SHELL
|
||||
const struct BB_applet *a = applets;
|
||||
#endif
|
||||
|
||||
|
||||
nextin = 0, nextout = 1;
|
||||
for (i = 0; i < newJob->numProgs; i++) {
|
||||
if ((i + 1) < newJob->numProgs) {
|
||||
pipe(pipefds);
|
||||
nextout = pipefds[1];
|
||||
} else {
|
||||
nextout = stdoutfd;
|
||||
if (outPipe[1]!=-1) {
|
||||
nextout = outPipe[1];
|
||||
} else {
|
||||
nextout = 1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Check if the command matches any non-forking builtins */
|
||||
@ -895,15 +898,18 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
|
||||
if (outPipe[1]!=-1) {
|
||||
close(outPipe[0]);
|
||||
nextout = stdoutfd = outPipe[1];
|
||||
}
|
||||
if (nextin != 0) {
|
||||
dup2(nextin, 0);
|
||||
close(nextin);
|
||||
}
|
||||
|
||||
if (nextout != 1) {
|
||||
dup2(nextout, 1);
|
||||
dup2(nextout, 2);
|
||||
close(nextout);
|
||||
}
|
||||
|
||||
//dup2(nextin, 0);
|
||||
//close(nextin);
|
||||
|
||||
/* explicit redirections override pipes */
|
||||
setupRedirections(newJob->progs + i);
|
||||
|
||||
@ -915,8 +921,8 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
}
|
||||
#ifdef BB_FEATURE_SH_STANDALONE_SHELL
|
||||
/* Check if the command matches any busybox internal commands here */
|
||||
/* TODO: Add matching on commands with paths appended (i.e. 'cat'
|
||||
* currently works, but '/bin/cat' doesn't ) */
|
||||
/* TODO: Add matching when paths are appended (i.e. 'cat' currently
|
||||
* works, but '/bin/cat' doesn't ) */
|
||||
while (a->name != 0) {
|
||||
if (strcmp(newJob->progs[i].argv[0], a->name) == 0) {
|
||||
int argc;
|
||||
@ -929,20 +935,19 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
#endif
|
||||
|
||||
execvp(newJob->progs[i].argv[0], newJob->progs[i].argv);
|
||||
fatalError("%s: %s\n", newJob->progs[i].argv[0],
|
||||
fatalError("sh: %s: %s\n", newJob->progs[i].argv[0],
|
||||
strerror(errno));
|
||||
}
|
||||
if (outPipe[1]!=-1) {
|
||||
if (outPipe[1]!=-1) {
|
||||
close(outPipe[1]);
|
||||
}
|
||||
|
||||
/* put our child in the process group whose leader is the
|
||||
first process in this pipe */
|
||||
setpgid(newJob->progs[i].pid, newJob->progs[0].pid);
|
||||
|
||||
if (nextin != 0)
|
||||
close(nextin);
|
||||
if (nextout != stdoutfd)
|
||||
if (nextout != 1)
|
||||
close(nextout);
|
||||
|
||||
/* If there isn't another process, nextin is garbage
|
||||
@ -960,10 +965,10 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
|
||||
/* add the job to the list of running jobs */
|
||||
if (!jobList->head) {
|
||||
job = jobList->head = xmalloc(sizeof(*job));
|
||||
job = jobList->head = malloc(sizeof(*job));
|
||||
} else {
|
||||
for (job = jobList->head; job->next; job = job->next);
|
||||
job->next = xmalloc(sizeof(*job));
|
||||
job->next = malloc(sizeof(*job));
|
||||
job = job->next;
|
||||
}
|
||||
|
||||
@ -1066,9 +1071,9 @@ static int busy_loop(FILE * input)
|
||||
int pipefds[2] = {-1,-1};
|
||||
runCommand(&newJob, &jobList, inBg, pipefds);
|
||||
} else {
|
||||
nextCommand=NULL;
|
||||
free(command);
|
||||
command = (char *) calloc(BUFSIZ, sizeof(char));
|
||||
nextCommand = NULL;
|
||||
}
|
||||
} else {
|
||||
/* a job is running in the foreground; wait for it */
|
||||
@ -1123,16 +1128,14 @@ static int busy_loop(FILE * input)
|
||||
}
|
||||
|
||||
|
||||
|
||||
int shell_main(int argc, char **argv)
|
||||
{
|
||||
FILE *input = stdin;
|
||||
|
||||
/* initialize the cwd */
|
||||
cwd = (char *) calloc(BUFSIZ, sizeof(char));
|
||||
if (cwd == 0) {
|
||||
fatalError("out of memory\n");
|
||||
}
|
||||
getcwd(cwd, sizeof(char)*BUFSIZ);
|
||||
/* initialize the cwd -- this is never freed...*/
|
||||
cwd=(char*)xmalloc(sizeof(char)*MAX_LINE+1);
|
||||
getcwd(cwd, sizeof(char)*MAX_LINE);
|
||||
|
||||
#ifdef BB_FEATURE_SH_COMMAND_EDITING
|
||||
cmdedit_init();
|
||||
@ -1144,8 +1147,9 @@ int shell_main(int argc, char **argv)
|
||||
// builtin_source("/etc/profile");
|
||||
//}
|
||||
|
||||
|
||||
if (argc < 2) {
|
||||
fprintf(stdout, "\n\n%s Built-in shell\n", full_version);
|
||||
fprintf(stdout, "\n\nBusyBox v%s (%s) Built-in shell\n", BB_VER, BB_BT);
|
||||
fprintf(stdout, "Enter 'help' for a list of built-in commands.\n\n");
|
||||
} else {
|
||||
if (argv[1][0]=='-' && argv[1][1]=='c') {
|
||||
|
||||
82
sh.c
82
sh.c
@ -46,10 +46,7 @@
|
||||
#include "cmdedit.h"
|
||||
#endif
|
||||
|
||||
#define bb_need_full_version
|
||||
#define BB_DECLARE_EXTERN
|
||||
#include "messages.c"
|
||||
|
||||
#define MAX_LINE 256 /* size of input buffer for `read' builtin */
|
||||
#define MAX_READ 128 /* size of input buffer for `read' builtin */
|
||||
#define JOB_STATUS_FORMAT "[%d] %-22s %.40s\n"
|
||||
|
||||
@ -147,7 +144,7 @@ static struct builtInCommand bltins_forking[] = {
|
||||
};
|
||||
|
||||
static char *prompt = "# ";
|
||||
static char *cwd = NULL;
|
||||
static char *cwd;
|
||||
static char *local_pending_command = NULL;
|
||||
|
||||
#ifdef BB_FEATURE_SH_COMMAND_EDITING
|
||||
@ -175,7 +172,7 @@ static int builtin_cd(struct job *cmd, struct jobSet *junk)
|
||||
printf("cd: %s: %s\n", newdir, strerror(errno));
|
||||
return FALSE;
|
||||
}
|
||||
getcwd(cwd, sizeof(cwd));
|
||||
getcwd(cwd, sizeof(char)*MAX_LINE);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
@ -289,7 +286,7 @@ static int builtin_jobs(struct job *dummy, struct jobSet *jobList)
|
||||
/* built-in 'pwd' handler */
|
||||
static int builtin_pwd(struct job *dummy, struct jobSet *junk)
|
||||
{
|
||||
getcwd(cwd, sizeof(cwd));
|
||||
getcwd(cwd, sizeof(char)*MAX_LINE);
|
||||
fprintf(stdout, "%s\n", cwd);
|
||||
return TRUE;
|
||||
}
|
||||
@ -780,13 +777,8 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Make a copy of any stuff left over in the command
|
||||
* line after the second backtick */
|
||||
charptr2 = xmalloc(strlen(ptr)+1);
|
||||
memcpy(charptr2, ptr+1, strlen(ptr));
|
||||
|
||||
/* Make some space to hold just the backticked command */
|
||||
charptr1 = xmalloc(1+ptr-src);
|
||||
charptr1 = charptr2 = xmalloc(1+ptr-src);
|
||||
snprintf(charptr1, 1+ptr-src, src);
|
||||
newJob = xmalloc(sizeof(struct job));
|
||||
/* Now parse and run the backticked command */
|
||||
@ -796,7 +788,14 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
runCommand(newJob, &njobList, 0, pipefd);
|
||||
}
|
||||
checkJobs(jobList);
|
||||
free(charptr1);
|
||||
freeJob(newJob);
|
||||
free(charptr2);
|
||||
|
||||
/* Make a copy of any stuff left over in the command
|
||||
* line after the second backtick */
|
||||
charptr2 = xmalloc(strlen(ptr)+1);
|
||||
memcpy(charptr2, ptr+1, strlen(ptr));
|
||||
|
||||
|
||||
/* Copy the output from the backtick-ed command into the
|
||||
* command line, making extra room as needed */
|
||||
@ -819,13 +818,12 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
/* Now paste into the *commandPtr all the stuff
|
||||
* leftover after the second backtick */
|
||||
memcpy(src, charptr2, strlen(charptr2));
|
||||
fprintf(stderr,"*commandPtr='%s'\n", *commandPtr);
|
||||
free(charptr2);
|
||||
|
||||
|
||||
/* Now recursively call parseCommand to deal with the new
|
||||
* and improved version of the command line with the backtick
|
||||
* results expanded in place... */
|
||||
freeJob(job);
|
||||
return(parseCommand(commandPtr, job, jobList, isBg));
|
||||
}
|
||||
break;
|
||||
@ -863,24 +861,29 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int outPipe[2])
|
||||
{
|
||||
struct job *job;
|
||||
int nextin=0, nextout, stdoutfd=fileno(stdout);
|
||||
int i;
|
||||
int nextin, nextout;
|
||||
int pipefds[2]; /* pipefd[0] is for reading */
|
||||
struct builtInCommand *x;
|
||||
#ifdef BB_FEATURE_SH_STANDALONE_SHELL
|
||||
const struct BB_applet *a = applets;
|
||||
#endif
|
||||
|
||||
|
||||
nextin = 0, nextout = 1;
|
||||
for (i = 0; i < newJob->numProgs; i++) {
|
||||
if ((i + 1) < newJob->numProgs) {
|
||||
pipe(pipefds);
|
||||
nextout = pipefds[1];
|
||||
} else {
|
||||
nextout = stdoutfd;
|
||||
if (outPipe[1]!=-1) {
|
||||
nextout = outPipe[1];
|
||||
} else {
|
||||
nextout = 1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Check if the command matches any non-forking builtins */
|
||||
@ -895,15 +898,18 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
|
||||
if (outPipe[1]!=-1) {
|
||||
close(outPipe[0]);
|
||||
nextout = stdoutfd = outPipe[1];
|
||||
}
|
||||
if (nextin != 0) {
|
||||
dup2(nextin, 0);
|
||||
close(nextin);
|
||||
}
|
||||
|
||||
if (nextout != 1) {
|
||||
dup2(nextout, 1);
|
||||
dup2(nextout, 2);
|
||||
close(nextout);
|
||||
}
|
||||
|
||||
//dup2(nextin, 0);
|
||||
//close(nextin);
|
||||
|
||||
/* explicit redirections override pipes */
|
||||
setupRedirections(newJob->progs + i);
|
||||
|
||||
@ -915,8 +921,8 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
}
|
||||
#ifdef BB_FEATURE_SH_STANDALONE_SHELL
|
||||
/* Check if the command matches any busybox internal commands here */
|
||||
/* TODO: Add matching on commands with paths appended (i.e. 'cat'
|
||||
* currently works, but '/bin/cat' doesn't ) */
|
||||
/* TODO: Add matching when paths are appended (i.e. 'cat' currently
|
||||
* works, but '/bin/cat' doesn't ) */
|
||||
while (a->name != 0) {
|
||||
if (strcmp(newJob->progs[i].argv[0], a->name) == 0) {
|
||||
int argc;
|
||||
@ -929,20 +935,19 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
#endif
|
||||
|
||||
execvp(newJob->progs[i].argv[0], newJob->progs[i].argv);
|
||||
fatalError("%s: %s\n", newJob->progs[i].argv[0],
|
||||
fatalError("sh: %s: %s\n", newJob->progs[i].argv[0],
|
||||
strerror(errno));
|
||||
}
|
||||
if (outPipe[1]!=-1) {
|
||||
if (outPipe[1]!=-1) {
|
||||
close(outPipe[1]);
|
||||
}
|
||||
|
||||
/* put our child in the process group whose leader is the
|
||||
first process in this pipe */
|
||||
setpgid(newJob->progs[i].pid, newJob->progs[0].pid);
|
||||
|
||||
if (nextin != 0)
|
||||
close(nextin);
|
||||
if (nextout != stdoutfd)
|
||||
if (nextout != 1)
|
||||
close(nextout);
|
||||
|
||||
/* If there isn't another process, nextin is garbage
|
||||
@ -960,10 +965,10 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
|
||||
/* add the job to the list of running jobs */
|
||||
if (!jobList->head) {
|
||||
job = jobList->head = xmalloc(sizeof(*job));
|
||||
job = jobList->head = malloc(sizeof(*job));
|
||||
} else {
|
||||
for (job = jobList->head; job->next; job = job->next);
|
||||
job->next = xmalloc(sizeof(*job));
|
||||
job->next = malloc(sizeof(*job));
|
||||
job = job->next;
|
||||
}
|
||||
|
||||
@ -1066,9 +1071,9 @@ static int busy_loop(FILE * input)
|
||||
int pipefds[2] = {-1,-1};
|
||||
runCommand(&newJob, &jobList, inBg, pipefds);
|
||||
} else {
|
||||
nextCommand=NULL;
|
||||
free(command);
|
||||
command = (char *) calloc(BUFSIZ, sizeof(char));
|
||||
nextCommand = NULL;
|
||||
}
|
||||
} else {
|
||||
/* a job is running in the foreground; wait for it */
|
||||
@ -1123,16 +1128,14 @@ static int busy_loop(FILE * input)
|
||||
}
|
||||
|
||||
|
||||
|
||||
int shell_main(int argc, char **argv)
|
||||
{
|
||||
FILE *input = stdin;
|
||||
|
||||
/* initialize the cwd */
|
||||
cwd = (char *) calloc(BUFSIZ, sizeof(char));
|
||||
if (cwd == 0) {
|
||||
fatalError("out of memory\n");
|
||||
}
|
||||
getcwd(cwd, sizeof(char)*BUFSIZ);
|
||||
/* initialize the cwd -- this is never freed...*/
|
||||
cwd=(char*)xmalloc(sizeof(char)*MAX_LINE+1);
|
||||
getcwd(cwd, sizeof(char)*MAX_LINE);
|
||||
|
||||
#ifdef BB_FEATURE_SH_COMMAND_EDITING
|
||||
cmdedit_init();
|
||||
@ -1144,8 +1147,9 @@ int shell_main(int argc, char **argv)
|
||||
// builtin_source("/etc/profile");
|
||||
//}
|
||||
|
||||
|
||||
if (argc < 2) {
|
||||
fprintf(stdout, "\n\n%s Built-in shell\n", full_version);
|
||||
fprintf(stdout, "\n\nBusyBox v%s (%s) Built-in shell\n", BB_VER, BB_BT);
|
||||
fprintf(stdout, "Enter 'help' for a list of built-in commands.\n\n");
|
||||
} else {
|
||||
if (argv[1][0]=='-' && argv[1][1]=='c') {
|
||||
|
||||
82
shell/lash.c
82
shell/lash.c
@ -46,10 +46,7 @@
|
||||
#include "cmdedit.h"
|
||||
#endif
|
||||
|
||||
#define bb_need_full_version
|
||||
#define BB_DECLARE_EXTERN
|
||||
#include "messages.c"
|
||||
|
||||
#define MAX_LINE 256 /* size of input buffer for `read' builtin */
|
||||
#define MAX_READ 128 /* size of input buffer for `read' builtin */
|
||||
#define JOB_STATUS_FORMAT "[%d] %-22s %.40s\n"
|
||||
|
||||
@ -147,7 +144,7 @@ static struct builtInCommand bltins_forking[] = {
|
||||
};
|
||||
|
||||
static char *prompt = "# ";
|
||||
static char *cwd = NULL;
|
||||
static char *cwd;
|
||||
static char *local_pending_command = NULL;
|
||||
|
||||
#ifdef BB_FEATURE_SH_COMMAND_EDITING
|
||||
@ -175,7 +172,7 @@ static int builtin_cd(struct job *cmd, struct jobSet *junk)
|
||||
printf("cd: %s: %s\n", newdir, strerror(errno));
|
||||
return FALSE;
|
||||
}
|
||||
getcwd(cwd, sizeof(cwd));
|
||||
getcwd(cwd, sizeof(char)*MAX_LINE);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
@ -289,7 +286,7 @@ static int builtin_jobs(struct job *dummy, struct jobSet *jobList)
|
||||
/* built-in 'pwd' handler */
|
||||
static int builtin_pwd(struct job *dummy, struct jobSet *junk)
|
||||
{
|
||||
getcwd(cwd, sizeof(cwd));
|
||||
getcwd(cwd, sizeof(char)*MAX_LINE);
|
||||
fprintf(stdout, "%s\n", cwd);
|
||||
return TRUE;
|
||||
}
|
||||
@ -780,13 +777,8 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Make a copy of any stuff left over in the command
|
||||
* line after the second backtick */
|
||||
charptr2 = xmalloc(strlen(ptr)+1);
|
||||
memcpy(charptr2, ptr+1, strlen(ptr));
|
||||
|
||||
/* Make some space to hold just the backticked command */
|
||||
charptr1 = xmalloc(1+ptr-src);
|
||||
charptr1 = charptr2 = xmalloc(1+ptr-src);
|
||||
snprintf(charptr1, 1+ptr-src, src);
|
||||
newJob = xmalloc(sizeof(struct job));
|
||||
/* Now parse and run the backticked command */
|
||||
@ -796,7 +788,14 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
runCommand(newJob, &njobList, 0, pipefd);
|
||||
}
|
||||
checkJobs(jobList);
|
||||
free(charptr1);
|
||||
freeJob(newJob);
|
||||
free(charptr2);
|
||||
|
||||
/* Make a copy of any stuff left over in the command
|
||||
* line after the second backtick */
|
||||
charptr2 = xmalloc(strlen(ptr)+1);
|
||||
memcpy(charptr2, ptr+1, strlen(ptr));
|
||||
|
||||
|
||||
/* Copy the output from the backtick-ed command into the
|
||||
* command line, making extra room as needed */
|
||||
@ -819,13 +818,12 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
/* Now paste into the *commandPtr all the stuff
|
||||
* leftover after the second backtick */
|
||||
memcpy(src, charptr2, strlen(charptr2));
|
||||
fprintf(stderr,"*commandPtr='%s'\n", *commandPtr);
|
||||
free(charptr2);
|
||||
|
||||
|
||||
/* Now recursively call parseCommand to deal with the new
|
||||
* and improved version of the command line with the backtick
|
||||
* results expanded in place... */
|
||||
freeJob(job);
|
||||
return(parseCommand(commandPtr, job, jobList, isBg));
|
||||
}
|
||||
break;
|
||||
@ -863,24 +861,29 @@ static int parseCommand(char **commandPtr, struct job *job, struct jobSet *jobLi
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int outPipe[2])
|
||||
{
|
||||
struct job *job;
|
||||
int nextin=0, nextout, stdoutfd=fileno(stdout);
|
||||
int i;
|
||||
int nextin, nextout;
|
||||
int pipefds[2]; /* pipefd[0] is for reading */
|
||||
struct builtInCommand *x;
|
||||
#ifdef BB_FEATURE_SH_STANDALONE_SHELL
|
||||
const struct BB_applet *a = applets;
|
||||
#endif
|
||||
|
||||
|
||||
nextin = 0, nextout = 1;
|
||||
for (i = 0; i < newJob->numProgs; i++) {
|
||||
if ((i + 1) < newJob->numProgs) {
|
||||
pipe(pipefds);
|
||||
nextout = pipefds[1];
|
||||
} else {
|
||||
nextout = stdoutfd;
|
||||
if (outPipe[1]!=-1) {
|
||||
nextout = outPipe[1];
|
||||
} else {
|
||||
nextout = 1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Check if the command matches any non-forking builtins */
|
||||
@ -895,15 +898,18 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
|
||||
if (outPipe[1]!=-1) {
|
||||
close(outPipe[0]);
|
||||
nextout = stdoutfd = outPipe[1];
|
||||
}
|
||||
if (nextin != 0) {
|
||||
dup2(nextin, 0);
|
||||
close(nextin);
|
||||
}
|
||||
|
||||
if (nextout != 1) {
|
||||
dup2(nextout, 1);
|
||||
dup2(nextout, 2);
|
||||
close(nextout);
|
||||
}
|
||||
|
||||
//dup2(nextin, 0);
|
||||
//close(nextin);
|
||||
|
||||
/* explicit redirections override pipes */
|
||||
setupRedirections(newJob->progs + i);
|
||||
|
||||
@ -915,8 +921,8 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
}
|
||||
#ifdef BB_FEATURE_SH_STANDALONE_SHELL
|
||||
/* Check if the command matches any busybox internal commands here */
|
||||
/* TODO: Add matching on commands with paths appended (i.e. 'cat'
|
||||
* currently works, but '/bin/cat' doesn't ) */
|
||||
/* TODO: Add matching when paths are appended (i.e. 'cat' currently
|
||||
* works, but '/bin/cat' doesn't ) */
|
||||
while (a->name != 0) {
|
||||
if (strcmp(newJob->progs[i].argv[0], a->name) == 0) {
|
||||
int argc;
|
||||
@ -929,20 +935,19 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
#endif
|
||||
|
||||
execvp(newJob->progs[i].argv[0], newJob->progs[i].argv);
|
||||
fatalError("%s: %s\n", newJob->progs[i].argv[0],
|
||||
fatalError("sh: %s: %s\n", newJob->progs[i].argv[0],
|
||||
strerror(errno));
|
||||
}
|
||||
if (outPipe[1]!=-1) {
|
||||
if (outPipe[1]!=-1) {
|
||||
close(outPipe[1]);
|
||||
}
|
||||
|
||||
/* put our child in the process group whose leader is the
|
||||
first process in this pipe */
|
||||
setpgid(newJob->progs[i].pid, newJob->progs[0].pid);
|
||||
|
||||
if (nextin != 0)
|
||||
close(nextin);
|
||||
if (nextout != stdoutfd)
|
||||
if (nextout != 1)
|
||||
close(nextout);
|
||||
|
||||
/* If there isn't another process, nextin is garbage
|
||||
@ -960,10 +965,10 @@ static int runCommand(struct job *newJob, struct jobSet *jobList, int inBg, int
|
||||
|
||||
/* add the job to the list of running jobs */
|
||||
if (!jobList->head) {
|
||||
job = jobList->head = xmalloc(sizeof(*job));
|
||||
job = jobList->head = malloc(sizeof(*job));
|
||||
} else {
|
||||
for (job = jobList->head; job->next; job = job->next);
|
||||
job->next = xmalloc(sizeof(*job));
|
||||
job->next = malloc(sizeof(*job));
|
||||
job = job->next;
|
||||
}
|
||||
|
||||
@ -1066,9 +1071,9 @@ static int busy_loop(FILE * input)
|
||||
int pipefds[2] = {-1,-1};
|
||||
runCommand(&newJob, &jobList, inBg, pipefds);
|
||||
} else {
|
||||
nextCommand=NULL;
|
||||
free(command);
|
||||
command = (char *) calloc(BUFSIZ, sizeof(char));
|
||||
nextCommand = NULL;
|
||||
}
|
||||
} else {
|
||||
/* a job is running in the foreground; wait for it */
|
||||
@ -1123,16 +1128,14 @@ static int busy_loop(FILE * input)
|
||||
}
|
||||
|
||||
|
||||
|
||||
int shell_main(int argc, char **argv)
|
||||
{
|
||||
FILE *input = stdin;
|
||||
|
||||
/* initialize the cwd */
|
||||
cwd = (char *) calloc(BUFSIZ, sizeof(char));
|
||||
if (cwd == 0) {
|
||||
fatalError("out of memory\n");
|
||||
}
|
||||
getcwd(cwd, sizeof(char)*BUFSIZ);
|
||||
/* initialize the cwd -- this is never freed...*/
|
||||
cwd=(char*)xmalloc(sizeof(char)*MAX_LINE+1);
|
||||
getcwd(cwd, sizeof(char)*MAX_LINE);
|
||||
|
||||
#ifdef BB_FEATURE_SH_COMMAND_EDITING
|
||||
cmdedit_init();
|
||||
@ -1144,8 +1147,9 @@ int shell_main(int argc, char **argv)
|
||||
// builtin_source("/etc/profile");
|
||||
//}
|
||||
|
||||
|
||||
if (argc < 2) {
|
||||
fprintf(stdout, "\n\n%s Built-in shell\n", full_version);
|
||||
fprintf(stdout, "\n\nBusyBox v%s (%s) Built-in shell\n", BB_VER, BB_BT);
|
||||
fprintf(stdout, "Enter 'help' for a list of built-in commands.\n\n");
|
||||
} else {
|
||||
if (argv[1][0]=='-' && argv[1][1]=='c') {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user