DGNum/hostapd
6
0
Fork 0
Code Issues Pull requests 1 Projects Releases Packages Wiki Activity Actions

Verify fread(), fwrite(), and system() return values

Browse source 
These were starting to trigger compiler warning with recent glibc header
files and gcc.
This commit is contained in:
Jouni Malinen 2008-10-29 19:33:24 +02:00 committed by Jouni Malinen
parent dd20838a7d
commit 308a4ec81a
3 changed files with 18 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/eap_peer/eap_fast_pac.c
View file

@ -533,6 +533,8 @@ static void eap_fast_write(char **buf, char **pos, size_t *buf_len,
static int eap_fast_write_pac(struct eap_sm *sm, const char *pac_file,
char *buf, size_t len)
{
int ret = 0;
if (os_strncmp(pac_file, "blob://", 7) == 0) {
struct wpa_config_blob *blob;
blob = os_zalloc(sizeof(*blob));
@ -555,12 +557,16 @@ static int eap_fast_write_pac(struct eap_sm *sm, const char *pac_file,
"file '%s' for writing", pac_file);
return -1;
}
fwrite(buf, 1, len, f);
if (fwrite(buf, 1, len, f) != len) {
wpa_printf(MSG_INFO, "EAP-FAST: Failed to write all "
"PACs into '%s'", pac_file);
ret = -1;
}
os_free(buf);
fclose(f);
}
return 0;
return ret;
}

7
src/utils/os_unix.c
View file

@ -220,7 +220,12 @@ char * os_readfile(const char *name, size_t *len)
return NULL;
}
fread(buf, 1, *len, f);
if (fread(buf, 1, *len, f) != *len) {
fclose(f);
free(buf);
return NULL;
}
fclose(f);
return buf;

6
wpa_supplicant/wpa_cli.c
View file

@ -1152,6 +1152,7 @@ static int wpa_cli_exec(const char *program, const char *arg1,
char *cmd;
size_t len;
int res;
int ret = 0;
len = os_strlen(program) + os_strlen(arg1) + os_strlen(arg2) + 3;
cmd = os_malloc(len);
@ -1164,11 +1165,12 @@ static int wpa_cli_exec(const char *program, const char *arg1,
}
cmd[len - 1] = '\0';
#ifndef _WIN32_WCE
system(cmd);
if (system(cmd) < 0)
ret = -1;
#endif /* _WIN32_WCE */
os_free(cmd);
return 0;
return ret;
}