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error message style and use strerror in a few places

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This commit is contained in:
Hiltjo Posthuma 2018-03-29 18:30:05 +02:00
parent bd3f7fd842
commit 041912a791
2 changed files with 24 additions and 24 deletions
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21
st.c
View file

@ -256,10 +256,10 @@ xwrite(int fd, const char *s, size_t len)
void * void *
xmalloc(size_t len) xmalloc(size_t len)
{ {
void *p = malloc(len); void *p;
if (!p) if (!(p = malloc(len)))
die("Out of memory\n"); die("malloc: %s\n", strerror(errno));
return p; return p;
} }
@ -268,7 +268,7 @@ void *
xrealloc(void *p, size_t len) xrealloc(void *p, size_t len)
{ {
if ((p = realloc(p, len)) == NULL) if ((p = realloc(p, len)) == NULL)
die("Out of memory\n"); die("realloc: %s\n", strerror(errno));
return p; return p;
} }
@ -277,7 +277,7 @@ char *
xstrdup(char *s) xstrdup(char *s)
{ {
if ((s = strdup(s)) == NULL) if ((s = strdup(s)) == NULL)
die("Out of memory\n"); die("strdup: %s\n", strerror(errno));
return s; return s;
} }
@ -687,7 +687,7 @@ execsh(char *cmd, char **args)
errno = 0; errno = 0;
if ((pw = getpwuid(getuid())) == NULL) { if ((pw = getpwuid(getuid())) == NULL) {
if (errno) if (errno)
die("getpwuid:%s\n", strerror(errno)); die("getpwuid: %s\n", strerror(errno));
else else
die("who are you?\n"); die("who are you?\n");
} }
@ -730,7 +730,7 @@ sigchld(int a)
pid_t p; pid_t p;
if ((p = waitpid(pid, &stat, WNOHANG)) < 0) if ((p = waitpid(pid, &stat, WNOHANG)) < 0)
die("Waiting for pid %hd failed: %s\n", pid, strerror(errno)); die("waiting for pid %hd failed: %s\n", pid, strerror(errno));
if (pid != p) if (pid != p)
return; return;
@ -781,7 +781,8 @@ ttynew(char *line, char *cmd, char *out, char **args)
if (line) { if (line) {
if ((cmdfd = open(line, O_RDWR)) < 0) if ((cmdfd = open(line, O_RDWR)) < 0)
die("open line failed: %s\n", strerror(errno)); die("open line '%s' failed: %s\n",
line, strerror(errno));
dup2(cmdfd, 0); dup2(cmdfd, 0);
stty(args); stty(args);
return cmdfd; return cmdfd;
@ -793,7 +794,7 @@ ttynew(char *line, char *cmd, char *out, char **args)
switch (pid = fork()) { switch (pid = fork()) {
case -1: case -1:
die("fork failed\n"); die("fork failed: %s\n", strerror(errno));
break; break;
case 0: case 0:
close(iofd); close(iofd);
@ -826,7 +827,7 @@ ttyread(void)
/* append read bytes to unprocessed bytes */ /* append read bytes to unprocessed bytes */
if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0) if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
die("Couldn't read from shell: %s\n", strerror(errno)); die("couldn't read from shell: %s\n", strerror(errno));
buflen += ret; buflen += ret;
written = twrite(buf, buflen, 0); written = twrite(buf, buflen, 0);

27
x.c
View file

@ -742,9 +742,9 @@ xloadcols(void)
for (i = 0; i < dc.collen; i++) for (i = 0; i < dc.collen; i++)
if (!xloadcolor(i, NULL, &dc.col[i])) { if (!xloadcolor(i, NULL, &dc.col[i])) {
if (colorname[i]) if (colorname[i])
die("Could not allocate color '%s'\n", colorname[i]); die("could not allocate color '%s'\n", colorname[i]);
else else
die("Could not allocate color %d\n", i); die("could not allocate color %d\n", i);
} }
loaded = 1; loaded = 1;
} }
@ -869,7 +869,7 @@ xloadfont(Font *f, FcPattern *pattern)
if ((XftPatternGetInteger(f->match->pattern, "slant", 0, if ((XftPatternGetInteger(f->match->pattern, "slant", 0,
&haveattr) != XftResultMatch) || haveattr < wantattr) { &haveattr) != XftResultMatch) || haveattr < wantattr) {
f->badslant = 1; f->badslant = 1;
fputs("st: font slant does not match\n", stderr); fputs("font slant does not match\n", stderr);
} }
} }
@ -878,7 +878,7 @@ xloadfont(Font *f, FcPattern *pattern)
if ((XftPatternGetInteger(f->match->pattern, "weight", 0, if ((XftPatternGetInteger(f->match->pattern, "weight", 0,
&haveattr) != XftResultMatch) || haveattr != wantattr) { &haveattr) != XftResultMatch) || haveattr != wantattr) {
f->badweight = 1; f->badweight = 1;
fputs("st: font weight does not match\n", stderr); fputs("font weight does not match\n", stderr);
} }
} }
@ -906,14 +906,13 @@ xloadfonts(char *fontstr, double fontsize)
FcPattern *pattern; FcPattern *pattern;
double fontval; double fontval;
if (fontstr[0] == '-') { if (fontstr[0] == '-')
pattern = XftXlfdParse(fontstr, False, False); pattern = XftXlfdParse(fontstr, False, False);
} else { else
pattern = FcNameParse((FcChar8 *)fontstr); pattern = FcNameParse((FcChar8 *)fontstr);
}
if (!pattern) if (!pattern)
die("st: can't open font %s\n", fontstr); die("can't open font %s\n", fontstr);
if (fontsize > 1) { if (fontsize > 1) {
FcPatternDel(pattern, FC_PIXEL_SIZE); FcPatternDel(pattern, FC_PIXEL_SIZE);
@ -939,7 +938,7 @@ xloadfonts(char *fontstr, double fontsize)
} }
if (xloadfont(&dc.font, pattern)) if (xloadfont(&dc.font, pattern))
die("st: can't open font %s\n", fontstr); die("can't open font %s\n", fontstr);
if (usedfontsize < 0) { if (usedfontsize < 0) {
FcPatternGetDouble(dc.font.match->pattern, FcPatternGetDouble(dc.font.match->pattern,
@ -956,17 +955,17 @@ xloadfonts(char *fontstr, double fontsize)
FcPatternDel(pattern, FC_SLANT); FcPatternDel(pattern, FC_SLANT);
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
if (xloadfont(&dc.ifont, pattern)) if (xloadfont(&dc.ifont, pattern))
die("st: can't open font %s\n", fontstr); die("can't open font %s\n", fontstr);
FcPatternDel(pattern, FC_WEIGHT); FcPatternDel(pattern, FC_WEIGHT);
FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
if (xloadfont(&dc.ibfont, pattern)) if (xloadfont(&dc.ibfont, pattern))
die("st: can't open font %s\n", fontstr); die("can't open font %s\n", fontstr);
FcPatternDel(pattern, FC_SLANT); FcPatternDel(pattern, FC_SLANT);
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
if (xloadfont(&dc.bfont, pattern)) if (xloadfont(&dc.bfont, pattern))
die("st: can't open font %s\n", fontstr); die("can't open font %s\n", fontstr);
FcPatternDestroy(pattern); FcPatternDestroy(pattern);
} }
@ -1003,13 +1002,13 @@ xinit(int cols, int rows)
XColor xmousefg, xmousebg; XColor xmousefg, xmousebg;
if (!(xw.dpy = XOpenDisplay(NULL))) if (!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n"); die("can't open display\n");
xw.scr = XDefaultScreen(xw.dpy); xw.scr = XDefaultScreen(xw.dpy);
xw.vis = XDefaultVisual(xw.dpy, xw.scr); xw.vis = XDefaultVisual(xw.dpy, xw.scr);
/* font */ /* font */
if (!FcInit()) if (!FcInit())
die("Could not init fontconfig.\n"); die("could not init fontconfig.\n");
usedfont = (opt_font == NULL)? font : opt_font; usedfont = (opt_font == NULL)? font : opt_font;
xloadfonts(usedfont, 0); xloadfonts(usedfont, 0);