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authorDaniel Friesel <derf@finalrewind.org>2011-10-09 19:22:54 +0200
committerDaniel Friesel <derf@finalrewind.org>2011-10-09 19:22:54 +0200
commitb89a5f593d0a7739bb196be04af3d6c023f1b1d1 (patch)
treea03fad09fe50daee9691a2e1080c0321cc2daa63 /src
parent477f1c2261820633fb66a4435f945d6984210981 (diff)
downloadfeh-b89a5f593d0a7739bb196be04af3d6c023f1b1d1.zip
slideshow.c: Warn about unknown format specifiers, fix handling of trailing % and \
Diffstat (limited to 'src')
-rw-r--r--src/slideshow.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/src/slideshow.c b/src/slideshow.c
index b9d9494..42aaf2e 100644
--- a/src/slideshow.c
+++ b/src/slideshow.c
@@ -390,7 +390,7 @@ char *feh_printf(char *str, feh_file * file)
ret[0] = '\0';
for (c = str; *c != '\0'; c++) {
- if (*c == '%') {
+ if ((*c == '%') && (*(c+1) != '\0')) {
c++;
switch (*c) {
case 'f':
@@ -456,18 +456,22 @@ char *feh_printf(char *str, feh_file * file)
+ 1 : 0);
strcat(ret, buf);
break;
+ case '%':
+ strcat(ret, "%");
+ break;
default:
- strncat(ret, c, 1);
+ weprintf("Unrecognized format specifier %%%c", *c);
+ strncat(ret, c - 1, 2);
break;
}
- } else if (*c == '\\') {
+ } else if ((*c == '\\') && (*(c+1) != '\0')) {
c++;
switch (*c) {
case 'n':
strcat(ret, "\n");
break;
default:
- strncat(ret, c, 1);
+ strncat(ret, c - 1, 2);
break;
}
} else