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-rw-r--r--source3/printing/nt_printing.c157
1 files changed, 134 insertions, 23 deletions
diff --git a/source3/printing/nt_printing.c b/source3/printing/nt_printing.c
index af651d76fe..180154218c 100644
--- a/source3/printing/nt_printing.c
+++ b/source3/printing/nt_printing.c
@@ -376,12 +376,12 @@ static uint32 add_a_printer_driver_3(NT_PRINTER_DRIVER_INFO_LEVEL_3 *driver)
****************************************************************************/
static uint32 get_a_printer_driver_3(NT_PRINTER_DRIVER_INFO_LEVEL_3 **info_ptr, fstring in_prt, fstring in_arch)
{
- FILE *f;
+ FILE *f = NULL;
pstring file;
fstring driver_name;
fstring architecture;
- NT_PRINTER_DRIVER_INFO_LEVEL_3 *info;
- char *line;
+ NT_PRINTER_DRIVER_INFO_LEVEL_3 *info = NULL;
+ char *line = NULL;
fstring p;
char *v;
int i=0;
@@ -402,16 +402,19 @@ static uint32 get_a_printer_driver_3(NT_PRINTER_DRIVER_INFO_LEVEL_3 **info_ptr,
if((f = sys_fopen(file, "r")) == NULL)
{
- DEBUG(2, ("cannot open printer driver file [%s]\n", file));
+ DEBUG(2, ("get_a_printer_driver_3: Cannot open printer driver file [%s]. Error was %s\n", file, strerror(errno) ));
return(2);
}
/* the file exists, allocate some memory */
- info=(NT_PRINTER_DRIVER_INFO_LEVEL_3 *)malloc(sizeof(NT_PRINTER_DRIVER_INFO_LEVEL_3));
+ if((info=(NT_PRINTER_DRIVER_INFO_LEVEL_3 *)malloc(sizeof(NT_PRINTER_DRIVER_INFO_LEVEL_3))) == NULL)
+ goto err;
+
ZERO_STRUCTP(info);
/* allocate a 4Kbytes buffer for parsing lines */
- line=(char *)malloc(4096*sizeof(char));
+ if((line=(char *)malloc(4096*sizeof(char))) == NULL)
+ goto err;
while ( fgets(line, 4095, f) )
{
@@ -459,9 +462,11 @@ static uint32 get_a_printer_driver_3(NT_PRINTER_DRIVER_INFO_LEVEL_3 **info_ptr,
if (!strncmp(p, "dependentfile", strlen("dependentfile")))
{
- dependentfiles=(char **)Realloc(dependentfiles, sizeof(char *)*(i+1));
+ if((dependentfiles=(char **)Realloc(dependentfiles, sizeof(char *)*(i+1))) == NULL)
+ goto err;
- dependentfiles[i]=(char *)malloc( sizeof(char)* (strlen(v)+1) );
+ if((dependentfiles[i]=(char *)malloc( sizeof(char)* (strlen(v)+1) )) == NULL)
+ goto err;
StrnCpy(dependentfiles[i], v, strlen(v) );
i++;
@@ -481,6 +486,25 @@ static uint32 get_a_printer_driver_3(NT_PRINTER_DRIVER_INFO_LEVEL_3 **info_ptr,
*info_ptr=info;
return (0);
+
+ err:
+
+ if(f)
+ fclose(f);
+ if(line)
+ free(line);
+ if(info)
+ free(info);
+
+ if(dependentfiles) {
+ for(;i >= 0; i--)
+ if(dependentfiles[i])
+ free(dependentfiles[i]);
+
+ free(dependentfiles);
+ }
+
+ return (2);
}
/****************************************************************************
@@ -690,7 +714,7 @@ fill a NT_PRINTER_PARAM from a text file
used when reading from disk.
****************************************************************************/
-static void dissect_and_fill_a_param(NT_PRINTER_PARAM *param, char *v)
+static BOOL dissect_and_fill_a_param(NT_PRINTER_PARAM *param, char *v)
{
char *tok[5];
int count = 0;
@@ -708,11 +732,13 @@ static void dissect_and_fill_a_param(NT_PRINTER_PARAM *param, char *v)
StrnCpy(param->value, tok[0], sizeof(param->value)-1);
param->type=atoi(tok[1]);
param->data_len=atoi(tok[2]);
- param->data=(uint8 *)malloc(param->data_len * sizeof(uint8));
+ if((param->data=(uint8 *)malloc(param->data_len * sizeof(uint8))) == NULL)
+ return False;
strhex_to_str(param->data, 2*(param->data_len), tok[3]);
param->next=NULL;
DEBUGADD(105,("value:[%s], len:[%d]\n", param->value, param->data_len));
+ return True;
}
/****************************************************************************
@@ -796,18 +822,79 @@ BOOL unlink_specific_param_if_exist(NT_PRINTER_INFO_LEVEL_2 *info_2, NT_PRINTER_
}
/****************************************************************************
+ Clean up and deallocate a (maybe partially) allocated NT_PRINTER_PARAM.
+****************************************************************************/
+
+static void free_nt_printer_param(NT_PRINTER_PARAM **param_ptr)
+{
+ NT_PRINTER_PARAM *param = *param_ptr;
+
+ if(param == NULL)
+ return;
+
+ if(param->data)
+ free(param->data);
+
+ free(param);
+ *param_ptr = NULL;
+}
+
+/****************************************************************************
+ Clean up and deallocate a (maybe partially) allocated NT_DEVICEMODE.
+****************************************************************************/
+
+static void free_nt_devicemode(NT_DEVICEMODE **devmode_ptr)
+{
+ NT_DEVICEMODE *nt_devmode = *devmode_ptr;
+
+ if(nt_devmode == NULL)
+ return;
+
+ if(nt_devmode->private)
+ free(nt_devmode->private);
+
+ free(nt_devmode);
+ *devmode_ptr = NULL;
+}
+
+/****************************************************************************
+ Clean up and deallocate a (maybe partially) allocated NT_PRINTER_INFO_LEVEL_2.
+****************************************************************************/
+
+static void free_nt_printer_info_level_2(NT_PRINTER_INFO_LEVEL_2 **info_ptr)
+{
+ NT_PRINTER_INFO_LEVEL_2 *info = *info_ptr;
+ NT_PRINTER_PARAM *param_ptr;
+
+ if(info == NULL)
+ return;
+
+ free_nt_devicemode(&info->devmode);
+
+ for(param_ptr = info->specific; param_ptr; ) {
+ NT_PRINTER_PARAM *tofree = param_ptr;
+
+ param_ptr = param_ptr->next;
+ free_nt_printer_param(&tofree);
+ }
+
+ free(info);
+ *info_ptr = NULL;
+}
+
+/****************************************************************************
****************************************************************************/
static uint32 get_a_printer_2(NT_PRINTER_INFO_LEVEL_2 **info_ptr, fstring sharename)
{
- FILE *f;
+ FILE *f = NULL;
pstring file;
fstring printer_name;
- NT_PRINTER_INFO_LEVEL_2 *info;
- NT_DEVICEMODE *nt_devmode;
- NT_PRINTER_PARAM *param;
- char *line;
+ NT_PRINTER_INFO_LEVEL_2 *info = NULL;
+ NT_DEVICEMODE *nt_devmode = NULL;
+ NT_PRINTER_PARAM *param = NULL;
+ char *line = NULL;
fstring p;
- char *v;
+ char *v = NULL;
/*
* the sharename argument is the SAMBA sharename
@@ -819,21 +906,26 @@ static uint32 get_a_printer_2(NT_PRINTER_INFO_LEVEL_2 **info_ptr, fstring sharen
if((f = sys_fopen(file, "r")) == NULL)
{
- DEBUG(2, ("cannot open printer file [%s]\n", file));
+ DEBUG(2, ("get_a_printer_2: Cannot open printer file [%s]. Error was %s\n", file, strerror(errno) ));
return(2);
}
/* the file exists, allocate some memory */
- info=(NT_PRINTER_INFO_LEVEL_2 *)malloc(sizeof(NT_PRINTER_INFO_LEVEL_2));
+ if((info=(NT_PRINTER_INFO_LEVEL_2 *)malloc(sizeof(NT_PRINTER_INFO_LEVEL_2))) == NULL)
+ goto err;
+
ZERO_STRUCTP(info);
- nt_devmode=(NT_DEVICEMODE *)malloc(sizeof(NT_DEVICEMODE));
+ if((nt_devmode=(NT_DEVICEMODE *)malloc(sizeof(NT_DEVICEMODE))) == NULL)
+ goto err;
+
ZERO_STRUCTP(nt_devmode);
init_devicemode(nt_devmode);
info->devmode=nt_devmode;
- line=(char *)malloc(4096*sizeof(char));
+ if((line=(char *)malloc(4096*sizeof(char))) == NULL)
+ goto err;
while ( fgets(line, 4095, f) )
{
@@ -998,7 +1090,9 @@ static uint32 get_a_printer_2(NT_PRINTER_INFO_LEVEL_2 **info_ptr, fstring sharen
if (!strncmp(p, "private", strlen("private")))
{
- nt_devmode->private=(uint8 *)malloc(nt_devmode->driverextra*sizeof(uint8));
+ if((nt_devmode->private=(uint8 *)malloc(nt_devmode->driverextra*sizeof(uint8))) == NULL)
+ goto err;
+
strhex_to_str(nt_devmode->private, 2*nt_devmode->driverextra, v);
}
@@ -1006,10 +1100,13 @@ static uint32 get_a_printer_2(NT_PRINTER_INFO_LEVEL_2 **info_ptr, fstring sharen
if (!strncmp(p, "specific", strlen("specific")))
{
- param=(NT_PRINTER_PARAM *)malloc(sizeof(NT_PRINTER_PARAM));
+ if((param=(NT_PRINTER_PARAM *)malloc(sizeof(NT_PRINTER_PARAM))) == NULL)
+ goto err;
+
ZERO_STRUCTP(param);
- dissect_and_fill_a_param(param, v);
+ if(!dissect_and_fill_a_param(param, v))
+ goto err;
dump_a_param(param);
@@ -1023,6 +1120,16 @@ static uint32 get_a_printer_2(NT_PRINTER_INFO_LEVEL_2 **info_ptr, fstring sharen
*info_ptr=info;
return (0);
+
+ err:
+
+ if(f)
+ fclose(f);
+ if(info)
+ free_nt_printer_info_level_2(&info);
+ if(line)
+ free(line);
+ return(2);
}
/****************************************************************************
@@ -1303,6 +1410,8 @@ BOOL get_specific_param_by_index(NT_PRINTER_INFO_LEVEL printer, uint32 level, ui
*type=param->type;
StrnCpy(value, param->value, sizeof(fstring)-1);
*data=(uint8 *)malloc(param->data_len*sizeof(uint8));
+ if(*data == NULL)
+ return False;
memcpy(*data, param->data, param->data_len);
*len=param->data_len;
return True;
@@ -1336,6 +1445,8 @@ BOOL get_specific_param(NT_PRINTER_INFO_LEVEL printer, uint32 level,
*type=param->type;
*data=(uint8 *)malloc(param->data_len*sizeof(uint8));
+ if(*data == NULL)
+ return False;
memcpy(*data, param->data, param->data_len);
*len=param->data_len;
generated by cgit (git 2.34.1) at 2024-12-15 05:41:36 +0000