diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/shell/hush.c b/shell/hush.c index 46f1a77..a26e2f6 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -1243,6 +1243,9 @@ static void checkjobs() break; } + if(pi==NULL) + return; + if (WIFEXITED(status) || WIFSIGNALED(status)) { /* child exited */ pi->running_progs--; @@ -1253,8 +1256,6 @@ static void checkjobs() remove_bg_job(pi); } } else { - if(pi==NULL) - break; /* child stopped */ pi->stopped_progs++; pi->progs[prognum].is_stopped = 1; @@ -1727,31 +1728,33 @@ static int set_local_var(const char *s, int flg_export) cur->flg_export=flg_export; else result++; + free(newval); } else { if(cur->flg_read_only) { - result = -1; error_msg("%s: readonly variable", name); + free(newval); + result = -1; } else { if(flg_export>0 || cur->flg_export>1) cur->flg_export=1; free(cur->value); cur->value = newval; - newval = 0; /* protect free */ } } } else { cur = malloc(sizeof(struct variables)); if(cur==0) { + free(newval); result = -1; } else { cur->name = strdup(name); if(cur->name == 0) { free(cur); + free(newval); result = -1; } else { struct variables *bottom = top_vars; cur->value = newval; - newval = 0; /* protect free */ cur->next = 0; cur->flg_export = flg_export; cur->flg_read_only = 0; @@ -1770,7 +1773,6 @@ static int set_local_var(const char *s, int flg_export) if(result>0) /* equivalent to previous set */ result = 0; } - free(newval); return result; } @@ -2473,10 +2475,10 @@ void update_ifs_map(void) * The map[] array only really needs two bits each, and on most machines * that would be faster because of the reduced L1 cache footprint. */ - memset(map,0,sizeof(map)); /* most characters flow through always */ - mapset("\\$'\"`", 3); /* never flow through */ - mapset("<>;&|(){}#", 1); /* flow through if quoted */ - mapset(ifs, 2); /* also flow through if quoted */ + memset(map,0,sizeof(map)); /* most characters flow through always */ + mapset("\\$'\"`", 3); /* never flow through */ + mapset("<>;&|(){}#", 1); /* flow through if quoted */ + mapset(ifs, 2); /* also flow through if quoted */ } /* most recursion does not come through here, the exeception is @@ -2549,7 +2551,7 @@ int shell_main(int argc, char **argv) * shell_main(), therefore we cannot rely on the BSS to zero out this * stuff. Reset these to 0 every time. */ ifs = NULL; - memset(map,0,sizeof(map)); + /* map[] is taken care of with call to update_ifs_map() */ fake_mode = 0; interactive = 0; close_me_head = NULL; @@ -2650,7 +2652,20 @@ int shell_main(int argc, char **argv) opt = parse_file_outer(input); #ifdef BB_FEATURE_CLEAN_UP - fclose(input.file); + fclose(input); + if (cwd && cwd != unknown) + free((char*)cwd); + { + struct variables *cur, *tmp; + for(cur = top_vars; cur; cur = tmp) { + tmp = cur->next; + if (!cur->flg_read_only) { + free(cur->name); + free(cur->value); + free(cur); + } + } + } #endif final_return: |