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401 lines
10 KiB
401 lines
10 KiB
--- a/ssmtp.c
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+++ b/ssmtp.c
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@@ -55,21 +55,21 @@ bool_t use_oldauth = False; /* use old
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#define ARPADATE_LENGTH 32 /* Current date in RFC format */
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char arpadate[ARPADATE_LENGTH];
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-char *auth_user = (char)NULL;
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-char *auth_pass = (char)NULL;
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-char *auth_method = (char)NULL; /* Mechanism for SMTP authentication */
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-char *mail_domain = (char)NULL;
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-char *from = (char)NULL; /* Use this as the From: address */
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+char *auth_user = NULL;
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+char *auth_pass = NULL;
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+char *auth_method = NULL; /* Mechanism for SMTP authentication */
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+char *mail_domain = NULL;
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+char *from = NULL; /* Use this as the From: address */
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char *hostname;
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char *mailhost = "mailhub";
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-char *minus_f = (char)NULL;
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-char *minus_F = (char)NULL;
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+char *minus_f = NULL;
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+char *minus_F = NULL;
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char *gecos;
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-char *prog = (char)NULL;
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+char *prog = NULL;
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char *root = NULL;
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char *tls_cert = "/etc/ssl/certs/ssmtp.pem"; /* Default Certificate */
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-char *uad = (char)NULL;
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-char *config_file = (char)NULL; /* alternate configuration file */
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+char *uad = NULL;
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+char *config_file = NULL; /* alternate configuration file */
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headers_t headers, *ht;
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@@ -261,7 +261,7 @@ char *strip_post_ws(char *str)
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p = (str + strlen(str));
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while(isspace(*--p)) {
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- *p = (char)NULL;
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+ *p = '\0';
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}
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return(p);
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@@ -279,7 +279,7 @@ char *addr_parse(char *str)
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#endif
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/* Simple case with email address enclosed in <> */
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- if((p = strdup(str)) == (char *)NULL) {
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+ if((p = strdup(str)) == NULL) {
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die("addr_parse(): strdup()");
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}
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@@ -287,7 +287,7 @@ char *addr_parse(char *str)
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q++;
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if((p = strchr(q, '>'))) {
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- *p = (char)NULL;
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+ *p = '\0';
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}
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#if 0
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@@ -310,7 +310,7 @@ char *addr_parse(char *str)
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q = strip_post_ws(p);
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if(*q == ')') {
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while((*--q != '('));
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- *q = (char)NULL;
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+ *q = '\0';
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}
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(void)strip_post_ws(p);
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@@ -363,7 +363,7 @@ bool_t standardise(char *str, bool_t *li
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*linestart = False;
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if((p = strchr(str, '\n'))) {
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- *p = (char)NULL;
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+ *p = '\0';
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*linestart = True;
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}
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return(leadingdot);
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@@ -384,7 +384,7 @@ void revaliases(struct passwd *pw)
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while(fgets(buf, sizeof(buf), fp)) {
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/* Make comments invisible */
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if((p = strchr(buf, '#'))) {
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- *p = (char)NULL;
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+ *p = '\0';
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}
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/* Ignore malformed lines and comments */
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@@ -519,11 +519,11 @@ void rcpt_save(char *str)
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#endif
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/* Ignore missing usernames */
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- if(*str == (char)NULL) {
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+ if(*str == '\0') {
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return;
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}
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- if((rt->string = strdup(str)) == (char *)NULL) {
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+ if((rt->string = strdup(str)) == NULL) {
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die("rcpt_save() -- strdup() failed");
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}
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@@ -548,7 +548,7 @@ void rcpt_parse(char *str)
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(void)fprintf(stderr, "*** rcpt_parse(): str = [%s]\n", str);
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#endif
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- if((p = strdup(str)) == (char *)NULL) {
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+ if((p = strdup(str)) == NULL) {
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die("rcpt_parse(): strdup() failed");
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}
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q = p;
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@@ -576,7 +576,7 @@ void rcpt_parse(char *str)
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}
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/* End of string? */
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- if(*(q + 1) == (char)NULL) {
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+ if(*(q + 1) == '\0') {
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got_addr = True;
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}
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@@ -584,7 +584,7 @@ void rcpt_parse(char *str)
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if((*q == ',') && (in_quotes == False)) {
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got_addr = True;
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- *q = (char)NULL;
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+ *q = '\0';
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}
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if(got_addr) {
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@@ -668,7 +668,7 @@ void header_save(char *str)
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(void)fprintf(stderr, "header_save(): str = [%s]\n", str);
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#endif
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- if((p = strdup(str)) == (char *)NULL) {
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+ if((p = strdup(str)) == NULL) {
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die("header_save() -- strdup() failed");
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}
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ht->string = p;
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@@ -676,7 +676,7 @@ void header_save(char *str)
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if(strncasecmp(ht->string, "From:", 5) == 0) {
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#if 1
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/* Hack check for NULL From: line */
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- if(*(p + 6) == (char)NULL) {
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+ if(*(p + 6) == '\0') {
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return;
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}
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#endif
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@@ -739,19 +739,19 @@ header_parse() -- Break headers into sep
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void header_parse(FILE *stream)
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{
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size_t size = BUF_SZ, len = 0;
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- char *p = (char *)NULL, *q;
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+ char *p = NULL, *q;
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bool_t in_header = True;
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- char l = (char)NULL;
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+ char l = '\0';
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int c;
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while(in_header && ((c = fgetc(stream)) != EOF)) {
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/* Must have space for up to two more characters, since we
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may need to insert a '\r' */
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- if((p == (char *)NULL) || (len >= (size - 1))) {
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+ if((p == NULL) || (len >= (size - 1))) {
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size += BUF_SZ;
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p = (char *)realloc(p, (size * sizeof(char)));
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- if(p == (char *)NULL) {
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+ if(p == NULL) {
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die("header_parse() -- realloc() failed");
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}
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q = (p + len);
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@@ -776,9 +776,9 @@ void header_parse(FILE *stream)
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in_header = False;
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default:
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- *q = (char)NULL;
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+ *q = '\0';
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if((q = strrchr(p, '\n'))) {
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- *q = (char)NULL;
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+ *q = '\0';
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}
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header_save(p);
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@@ -809,9 +809,9 @@ void header_parse(FILE *stream)
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in_header = False;
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default:
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- *q = (char)NULL;
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+ *q = '\0';
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if((q = strrchr(p, '\n'))) {
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- *q = (char)NULL;
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+ *q = '\0';
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}
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header_save(p);
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@@ -876,11 +876,11 @@ bool_t read_config()
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char *rightside;
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/* Make comments invisible */
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if((p = strchr(buf, '#'))) {
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- *p = (char)NULL;
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+ *p = '\0';
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}
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/* Ignore malformed lines and comments */
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- if(strchr(buf, '=') == (char *)NULL) continue;
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+ if(strchr(buf, '=') == NULL) continue;
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/* Parse out keywords */
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p=firsttok(&begin, "= \t\n");
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@@ -890,7 +890,7 @@ bool_t read_config()
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}
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if(p && q) {
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if(strcasecmp(p, "Root") == 0) {
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- if((root = strdup(q)) == (char *)NULL) {
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+ if((root = strdup(q)) == NULL) {
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die("parse_config() -- strdup() failed");
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}
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@@ -904,7 +904,7 @@ bool_t read_config()
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port = atoi(r);
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}
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- if((mailhost = strdup(q)) == (char *)NULL) {
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+ if((mailhost = strdup(q)) == NULL) {
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die("parse_config() -- strdup() failed");
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}
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@@ -949,7 +949,7 @@ bool_t read_config()
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mail_domain = strdup(q);
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}
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- if(mail_domain == (char *)NULL) {
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+ if(mail_domain == NULL) {
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die("parse_config() -- strdup() failed");
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}
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rewrite_domain = True;
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@@ -1025,7 +1025,7 @@ bool_t read_config()
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}
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}
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else if(strcasecmp(p, "TLSCert") == 0) {
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- if((tls_cert = strdup(q)) == (char *)NULL) {
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+ if((tls_cert = strdup(q)) == NULL) {
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die("parse_config() -- strdup() failed");
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}
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@@ -1036,7 +1036,7 @@ bool_t read_config()
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#endif
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/* Command-line overrides these */
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else if(strcasecmp(p, "AuthUser") == 0 && !auth_user) {
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- if((auth_user = strdup(q)) == (char *)NULL) {
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+ if((auth_user = strdup(q)) == NULL) {
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die("parse_config() -- strdup() failed");
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}
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@@ -1045,7 +1045,7 @@ bool_t read_config()
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}
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}
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else if(strcasecmp(p, "AuthPass") == 0 && !auth_pass) {
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- if((auth_pass = strdup(q)) == (char *)NULL) {
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+ if((auth_pass = strdup(q)) == NULL) {
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die("parse_config() -- strdup() failed");
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}
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@@ -1054,7 +1054,7 @@ bool_t read_config()
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}
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}
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else if(strcasecmp(p, "AuthMethod") == 0 && !auth_method) {
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- if((auth_method = strdup(q)) == (char *)NULL) {
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+ if((auth_method = strdup(q)) == NULL) {
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die("parse_config() -- strdup() failed");
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}
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@@ -1119,14 +1119,11 @@ int smtp_open(char *host, int port)
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char buf[(BUF_SZ + 1)];
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/* Init SSL stuff */
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- SSL_CTX *ctx;
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- SSL_METHOD *meth;
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+ SSL_CTX *ctx = NULL;
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X509 *server_cert;
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-
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SSL_load_error_strings();
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SSLeay_add_ssl_algorithms();
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- meth=SSLv23_client_method();
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- ctx = SSL_CTX_new(meth);
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+ ctx = SSL_CTX_new(SSLv23_client_method());
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if(!ctx) {
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log_event(LOG_ERR, "No SSL support initiated\n");
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return(-1);
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@@ -1310,7 +1307,7 @@ char *fd_gets(char *buf, int size, int f
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buf[i++] = c;
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}
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}
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- buf[i] = (char)NULL;
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+ buf[i] = '\0';
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return(buf);
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}
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@@ -1434,14 +1431,14 @@ int ssmtp(char *argv[])
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}
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if((p = strtok(pw->pw_gecos, ";,"))) {
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- if((gecos = strdup(p)) == (char *)NULL) {
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+ if((gecos = strdup(p)) == NULL) {
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die("ssmtp() -- strdup() failed");
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}
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}
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revaliases(pw);
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/* revaliases() may have defined this */
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- if(uad == (char *)NULL) {
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+ if(uad == NULL) {
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uad = append_domain(pw->pw_name);
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}
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@@ -1489,7 +1486,7 @@ int ssmtp(char *argv[])
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/* Try to log in if username was supplied */
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if(auth_user) {
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#ifdef MD5AUTH
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- if(auth_pass == (char *)NULL) {
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+ if(auth_pass == NULL) {
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auth_pass = strdup("");
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}
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@@ -1737,7 +1734,7 @@ char **parse_options(int argc, char *arg
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j = 0;
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add = 1;
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- while(argv[i][++j] != (char)NULL) {
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+ while(argv[i][++j] != '\0') {
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switch(argv[i][j]) {
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#ifdef INET6
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case '6':
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@@ -1755,14 +1752,14 @@ char **parse_options(int argc, char *arg
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if((!argv[i][(j + 1)])
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&& argv[(i + 1)]) {
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auth_user = strdup(argv[i+1]);
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- if(auth_user == (char *)NULL) {
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+ if(auth_user == NULL) {
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die("parse_options() -- strdup() failed");
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}
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add++;
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}
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else {
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auth_user = strdup(argv[i]+j+1);
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- if(auth_user == (char *)NULL) {
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+ if(auth_user == NULL) {
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die("parse_options() -- strdup() failed");
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}
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}
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@@ -1772,14 +1769,14 @@ char **parse_options(int argc, char *arg
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if((!argv[i][(j + 1)])
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&& argv[(i + 1)]) {
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auth_pass = strdup(argv[i+1]);
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- if(auth_pass == (char *)NULL) {
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+ if(auth_pass == NULL) {
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die("parse_options() -- strdup() failed");
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}
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add++;
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}
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else {
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auth_pass = strdup(argv[i]+j+1);
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- if(auth_pass == (char *)NULL) {
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+ if(auth_pass == NULL) {
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die("parse_options() -- strdup() failed");
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}
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}
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@@ -1870,14 +1867,14 @@ char **parse_options(int argc, char *arg
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case 'F':
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if((!argv[i][(j + 1)]) && argv[(i + 1)]) {
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minus_F = strdup(argv[(i + 1)]);
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- if(minus_F == (char *)NULL) {
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+ if(minus_F == NULL) {
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die("parse_options() -- strdup() failed");
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}
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add++;
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}
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else {
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minus_F = strdup(argv[i]+j+1);
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- if(minus_F == (char *)NULL) {
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+ if(minus_F == NULL) {
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die("parse_options() -- strdup() failed");
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}
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}
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@@ -1889,14 +1886,14 @@ char **parse_options(int argc, char *arg
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case 'r':
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if((!argv[i][(j + 1)]) && argv[(i + 1)]) {
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minus_f = strdup(argv[(i + 1)]);
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- if(minus_f == (char *)NULL) {
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+ if(minus_f == NULL) {
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die("parse_options() -- strdup() failed");
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}
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add++;
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}
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else {
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minus_f = strdup(argv[i]+j+1);
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- if(minus_f == (char *)NULL) {
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+ if(minus_f == NULL) {
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die("parse_options() -- strdup() failed");
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}
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}
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