X-Git-Url: https://jasonwoof.com/gitweb/?p=st.git;a=blobdiff_plain;f=st.c;h=e19cefd949c60886de515b4fad18b09b2232fa52;hp=43f5bc2aec13a24c5cacb37ee47610d51152fb09;hb=ee3fbeb6c8c354cf4db226a5b1583c531ea37af4;hpb=eb6713acf1928ec94364627ed583252370051705

diff --git a/st.c b/st.c
index 43f5bc2..e19cefd 100644
--- a/st.c
+++ b/st.c
@@ -340,6 +340,7 @@ static int utf8encode(long *, char *);
 static int utf8size(char *);
 static int isfullutf8(char *, int);
 
+static ssize_t xwrite(int, char *, size_t);
 static void *xmalloc(size_t);
 static void *xrealloc(void *, size_t);
 static void *xcalloc(size_t nmemb, size_t size);
@@ -379,6 +380,21 @@ static char *opt_embed = NULL;
 static char *opt_class = NULL;
 static char *opt_font = NULL;
 
+
+ssize_t
+xwrite(int fd, char *s, size_t len) {
+	size_t aux = len;
+
+	while(len > 0) {
+		ssize_t r = write(fd, s, len);
+		if(r < 0)
+			return r;
+		len -= r;
+		s += r;
+	}
+	return aux;
+}
+
 void *
 xmalloc(size_t len) {
 	void *p = malloc(len);
@@ -865,9 +881,6 @@ execsh(void) {
 	char **args;
 	char *envshell = getenv("SHELL");
 
-	if (envshell == NULL)
-		envshell ="/bin/sh";
-
 	unsetenv("COLUMNS");
 	unsetenv("LINES");
 	unsetenv("TERMCAP");
@@ -881,7 +894,7 @@ execsh(void) {
 
 	DEFAULT(envshell, SHELL);
 	putenv("TERM="TNAME);
-	args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
+	args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
 	execvp(args[0], args);
 	exit(EXIT_FAILURE);
 }
@@ -929,13 +942,12 @@ ttynew(void) {
 		cmdfd = m;
 		signal(SIGCHLD, sigchld);
 		if(opt_io) {
-			if(!strcmp(opt_io, "-")) {
-				iofd = STDOUT_FILENO;
-			} else {
-				if((iofd = open(opt_io, O_WRONLY | O_CREAT, 0666)) < 0) {
-					fprintf(stderr, "Error opening %s:%s\n",
-						opt_io, strerror(errno));
-				}
+			iofd = (!strcmp(opt_io, "-")) ?
+				  STDOUT_FILENO :
+				  open(opt_io, O_WRONLY | O_CREAT, 0666);
+			if(iofd < 0) {
+				fprintf(stderr, "Error opening %s:%s\n",
+					opt_io, strerror(errno));
 			}
 		}
 	}
@@ -1796,8 +1808,14 @@ tputc(char *c, int len) {
 	uchar ascii = *c;
 	bool control = ascii < '\x20' || ascii == 0177;
 
-	if(iofd != -1)
-		write(iofd, c, len);
+	if(iofd != -1) {
+		if (xwrite(iofd, c, len) < 0) {
+			fprintf(stderr, "Error writting in %s:%s\n",
+				opt_io, strerror(errno));
+			close(iofd);
+			iofd = -1;
+		}
+	}
 	/*
 	 * STR sequences must be checked before of anything
 	 * because it can use some control codes as part of the sequence