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Use strncpy for string_utils functions

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Also removed mstrjoin3 since it's not used.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui 2019-01-30 00:12:12 +00:00
parent 61d8e7825f
commit 2eb8cf961e
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GPG key ID: 37C999F617EA1A47
2 changed files with 20 additions and 21 deletions
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2
src/opengl.c
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@ -561,7 +561,7 @@ glx_init_blur(session_t *ps) {
const char *texture_func = (use_texture_rect ?
"texture2DRect": "texture2D");
const char *shader_add = FRAG_SHADER_BLUR_ADD;
char *extension = strdup("");
char *extension = NULL;
if (use_texture_rect)
mstrextend(&extension, "#extension GL_ARB_texture_rectangle : require\n");
if (ps->o.glx_use_gpushader4) {

37
src/string_utils.c
View file

@ -11,24 +11,14 @@
* Allocate the space and join two strings.
*/
char *mstrjoin(const char *src1, const char *src2) {
auto str = ccalloc(strlen(src1)+strlen(src2)+1, char);
auto len1 = strlen(src1);
auto len2 = strlen(src2);
auto len = len1 + len2 + 1;
auto str = ccalloc(len, char);
strcpy(str, src1);
strcat(str, src2);
return str;
}
/**
* Allocate the space and join two strings;
*/
char *
mstrjoin3(const char *src1, const char *src2, const char *src3) {
auto str = ccalloc(strlen(src1)+strlen(src2)+strlen(src3)+1, char);
strcpy(str, src1);
strcat(str, src2);
strcat(str, src3);
strncpy(str, src1, len1);
strncpy(str + len1, src2, len2);
str[len - 1] = '\0';
return str;
}
@ -37,7 +27,16 @@ mstrjoin3(const char *src1, const char *src2, const char *src3) {
* Concatenate a string on heap with another string.
*/
void mstrextend(char **psrc1, const char *src2) {
*psrc1 = crealloc(*psrc1, (*psrc1 ? strlen(*psrc1) : 0)+strlen(src2)+1);
if (!*psrc1) {
*psrc1 = strdup(src2);
return;
}
strcat(*psrc1, src2);
auto len1 = strlen(*psrc1);
auto len2 = strlen(src2);
auto len = len1 + len2 + 1;
*psrc1 = crealloc(*psrc1, len);
strncpy(*psrc1 + len1, src2, len2);
(*psrc1)[len - 1] = '\0';
}